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Antimony

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tinantimonytellurium
As

Sb

Bi
Element 1: Hydrogen (H), Other non-metal
Element 2: Helium (He), Noble gas
Element 3: Lithium (Li), Alkali metal
Element 4: Beryllium (Be), Alkaline earth metal
Element 5: Boron (B), Metalloid
Element 6: Carbon (C), Other non-metal
Element 7: Nitrogen (N), Other non-metal
Element 8: Oxygen (O), Other non-metal
Element 9: Fluorine (F), Halogen
Element 10: Neon (Ne), Noble gas
Element 11: Sodium (Na), Alkali metal
Element 12: Magnesium (Mg), Alkaline earth metal
Element 13: Aluminium (Al), Other metal
Element 14: Silicon (Si), Metalloid
Element 15: Phosphorus (P), Other non-metal
Element 16: Sulfur (S), Other non-metal
Element 17: Chlorine (Cl), Halogen
Element 18: Argon (Ar), Noble gas
Element 19: Potassium (K), Alkali metal
Element 20: Calcium (Ca), Alkaline earth metal
Element 21: Scandium (Sc), Transition metal
Element 22: Titanium (Ti), Transition metal
Element 23: Vanadium (V), Transition metal
Element 24: Chromium (Cr), Transition metal
Element 25: Manganese (Mn), Transition metal
Element 26: Iron (Fe), Transition metal
Element 27: Cobalt (Co), Transition metal
Element 28: Nickel (Ni), Transition metal
Element 29: Copper (Cu), Transition metal
Element 30: Zinc (Zn), Transition metal
Element 31: Gallium (Ga), Other metal
Element 32: Germanium (Ge), Metalloid
Element 33: Arsenic (As), Metalloid
Element 34: Selenium (Se), Other non-metal
Element 35: Bromine (Br), Halogen
Element 36: Krypton (Kr), Noble gas
Element 37: Rubidium (Rb), Alkali metal
Element 38: Strontium (Sr), Alkaline earth metal
Element 39: Yttrium (Y), Transition metal
Element 40: Zirconium (Zr), Transition metal
Element 41: Niobium (Nb), Transition metal
Element 42: Molybdenum (Mo), Transition metal
Element 43: Technetium (Tc), Transition metal
Element 44: Ruthenium (Ru), Transition metal
Element 45: Rhodium (Rh), Transition metal
Element 46: Palladium (Pd), Transition metal
Element 47: Silver (Ag), Transition metal
Element 48: Cadmium (Cd), Transition metal
Element 49: Indium (In), Other metal
Element 50: Tin (Sn), Other metal
Element 51: Antimony (Sb), Metalloid
Element 52: Tellurium (Te), Metalloid
Element 53: Iodine (I), Halogen
Element 54: Xenon (Xe), Noble gas
Element 55: Caesium (Cs), Alkali metal
Element 56: Barium (Ba), Alkaline earth metal
Element 57: Lanthanum (La), Lanthanoid
Element 58: Cerium (Ce), Lanthanoid
Element 59: Praseodymium (Pr), Lanthanoid
Element 60: Neodymium (Nd), Lanthanoid
Element 61: Promethium (Pm), Lanthanoid
Element 62: Samarium (Sm), Lanthanoid
Element 63: Europium (Eu), Lanthanoid
Element 64: Gadolinium (Gd), Lanthanoid
Element 65: Terbium (Tb), Lanthanoid
Element 66: Dysprosium (Dy), Lanthanoid
Element 67: Holmium (Ho), Lanthanoid
Element 68: Erbium (Er), Lanthanoid
Element 69: Thulium (Tm), Lanthanoid
Element 70: Ytterbium (Yb), Lanthanoid
Element 71: Lutetium (Lu), Lanthanoid
Element 72: Hafnium (Hf), Transition metal
Element 73: Tantalum (Ta), Transition metal
Element 74: Tungsten (W), Transition metal
Element 75: Rhenium (Re), Transition metal
Element 76: Osmium (Os), Transition metal
Element 77: Iridium (Ir), Transition metal
Element 78: Platinum (Pt), Transition metal
Element 79: Gold (Au), Transition metal
Element 80: Mercury (Hg), Transition metal
Element 81: Thallium (Tl), Other metal
Element 82: Lead (Pb), Other metal
Element 83: Bismuth (Bi), Other metal
Element 84: Polonium (Po), Other metal
Element 85: Astatine (At), Halogen
Element 86: Radon (Rn), Noble gas
Element 87: Francium (Fr), Alkali metal
Element 88: Radium (Ra), Alkaline earth metal
Element 89: Actinium (Ac), Actinoid
Element 90: Thorium (Th), Actinoid
Element 91: Protactinium (Pa), Actinoid
Element 92: Uranium (U), Actinoid
Element 93: Neptunium (Np), Actinoid
Element 94: Plutonium (Pu), Actinoid
Element 95: Americium (Am), Actinoid
Element 96: Curium (Cm), Actinoid
Element 97: Berkelium (Bk), Actinoid
Element 98: Californium (Cf), Actinoid
Element 99: Einsteinium (Es), Actinoid
Element 100: Fermium (Fm), Actinoid
Element 101: Mendelevium (Md), Actinoid
Element 102: Nobelium (No), Actinoid
Element 103: Lawrencium (Lr), Actinoid
Element 104: Rutherfordium (Rf), Transition metal
Element 105: Dubnium (Db), Transition metal
Element 106: Seaborgium (Sg), Transition metal
Element 107: Bohrium (Bh), Transition metal
Element 108: Hassium (Hs), Transition metal
Element 109: Meitnerium (Mt), Transition metal
Element 110: Darmstadtium (Ds), Transition metal
Element 111: Roentgenium (Rg), Transition metal
Element 112: Copernicium (Cn), Transition metal
Element 113: Ununtrium (Uut)
Element 114: Ununquadium (Uuq)
Element 115: Ununpentium (Uup)
Element 116: Ununhexium (Uuh)
Element 117: Ununseptium (Uus)
Element 118: Ununoctium (Uuo)
Antimony has a rhombohedral crystal structure
51Sb
Appearance
silvery lustrous gray
General properties
Name, symbol, number antimony, Sb, 51
Pronunciation /ˈæntɪmɵnɪ/
-ti-mo-nee[note 1]
Element category metalloid
Group, period, block 155, p
Standard atomic weight 121.760(1)g·mol−1
Electron configuration [Kr] 4d10 5s2 5p3
Electrons per shell 2, 8, 18, 18, 5 (Image)
Physical properties
Phase solid
Density (near r.t.) 6.697 g·cm−3
Liquid density at m.p. 6.53 g·cm−3
Melting point 903.78 K, 630.63 °C, 1167.13 °F
Boiling point 1860 K, 1587 °C, 2889 °F
Heat of fusion 19.79 kJ·mol−1
Heat of vaporization 193.43 kJ·mol−1
Specific heat capacity (25 °C) 25.23 J·mol−1·K−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 807 876 1011 1219 1491 1858
Atomic properties
Oxidation states 5, 3, -3
Electronegativity 2.05 (Pauling scale)
Ionization energies
(more)
1st: 834 kJ·mol−1
2nd: 1594.9 kJ·mol−1
3rd: 2440 kJ·mol−1
Atomic radius 140 pm
Covalent radius 139±5 pm
Van der Waals radius 206 pm
Miscellanea
Crystal structure rhombohedral
Magnetic ordering diamagnetic[1]
Electrical resistivity (20 °C) 417 nΩ·m
Thermal conductivity (300 K) 24.4 W·m−1·K−1
Thermal expansion (25 °C) 11 µm·m−1·K−1
Speed of sound (thin rod) (20 °C) 3420 m/s
Young's modulus 55 GPa
Shear modulus 20 GPa
Bulk modulus 42 GPa
Mohs hardness 3.0
Brinell hardness 294 MPa
CAS registry number 7440-36-0
Most stable isotopes
Main article: Isotopes of antimony
iso NA half-life DM DE DP
121Sb 57.36% 121Sb is stable with 70 neutrons
123Sb 42.64% 123Sb is stable with 72 neutrons
125Sb syn 2.7582 y β 0.767 125Te

Antimony (play /ˈæntɪmɵnɪ/ -ti-mo-nee;[note 2] Latin: stibium) is a chemical element with the symbol Sb and an atomic number of 51. A silvery lustrous grey metalloid, it is found in nature mainly as antimony sulfide, commonly known as stibnite. Antimony compounds are principally used as fire retardants, and its alloys are useful. An emerging application is the use of antimony in microelectronics.

Contents

Characteristics

Physical properties

A clear vial containing small chunks of a slightly lustrous black solid, labeled "Sb".
A vial containing a black allotrope of antimony
An irregular piece of silvery stone with spots of variation in lustre and shade.
Native massive antimony with oxidation products

Antimony is a soft metal (2 on mohs scale). A coin made of antimony issued in the Keichow Province of China in 1931 was unpopular because the metal was so soft the coins would wear out fast. After the first issue no others were produced.[2] It is resistant to attack by acids.

Four allotropes of antimony are known: a stable metallic form, and three meta-stable forms which are explosive, black and yellow. Metallic antimony is a brittle, silver-white shiny metal. When molten antimony is slowly cooled, metallic antimony crystallizes in an hexagonal cell, isomorphic with that of the black allotrope of arsenic.

A rare explosive form of antimony can be formed from the electrolysis of antimony(III) trichloride. When scratched with a sharp implement, an exothermic reaction occurs and white fumes given off as metallic antimony is formed; alternatively, when rubbed with a pestle in a mortar, a strong detonation occurs. Black antimony is formed when gaseous metallic antimony is rapidly cooled. It oxidies in air and is sometimes spontaneously combustible. At 100 °C, it gradually transforms into the stable form.

The yellow allotrope of antimony is the most unstable. It has only been generated by oxidation of stibine (SbH3) at -90 °C. Above this temperature and in ambient light, this meta stable allotrope transforms into the stabler black allotrope.[3]

Isotopes

Antimony exists as two stable isotopes, one with seventy neutrons, the other with seventy-two.

Occurrence

The abundance of antimony in the Earth's crust is estimated at 0.2 to 0.5 parts per million, comparable to thallium at 0.5 parts per million and silver at 0.07 ppm.[4] Even though this element is not abundant, it is found in over 100 mineral species. Antimony is sometimes found native, but more frequently it is found in the sulfide stibnite (Sb2S3) which is the predominant ore mineral. Commercial forms of antimony are generally ingots, broken pieces, granules, and cast cake. Other forms are powder, shot, and single crystals.

In 2005, China was the top producer of antimony with about 84% world share followed at a distance by South Africa, Bolivia and Tajikistan, reports the British Geological Survey. The mine with the largest deposits in China is Xikuangshan mine in Hunan Province with a estimated deposit of 2.1 million metric tons.[5]

Antimony has no natural role in biology.

Production

Antimony output in 2005
World production trend of antimony

The extraction of antimony from ores depends on the quality of the ore, which is usually a sulfide. The suflide is converted to an oxide and advantage is often taken of the volatility of antimony(III) oxide, which is recovered from roasting.[6] This material is often used directly for the main applications, impurities being arsenic and sulfide. Antimony can be isolated from its ore by a reduction with scrap iron:

Sb2S3 + 3Fe → 2Sb + 3FeS

Isolating antimony from its oxide, is performed by a carbothermal reduction:[7]

2Sb2O3 + 3 C → 4 Sb + 3 CO2
Country Tonnes  % of total
 People's Republic of China 126,000 84.0
 South Africa 6,000 4.0
 Bolivia 5,225 3.5
 Tajikistan 4,073 2.7
 Russia 3,000 2.0
Top 5 144,298 96.2
Total world 150,000 100.0

Compounds

Antimony compounds are often classified into those of Sb(III) and Sb(V).[8] Relative to its neighboring elements As, the 5+ oxidaton state is more oxidizing.

Oxides and hydroxides

Antimony trioxide (Sb4O6) is formed when antimony is burnt in an excess of air.[9] In the gas phase, this compound exists as Sb4O6, but polymerises as a solid.[10] Antimony pentoxide, (Sb4O10) can only be formed by oxidation by concentrated nitric acid.[11] Antimony also forms a mixed-valence oxide, antimony tetroxide (Sb2O4), which features both Sb(III) and Sb(V).[11] Unlike phosphorus and arsenic, these various oxides are amphoteric and do not form well-defined oxoacids and react with acids to form antimony salts.

Antimonous acid Sb(OH)3 is unstable with respect to olation to the oxide. Its conjugate base sodium antimonite ([Na3SbO3]4) forms upon fusing sodium oxide and Sb4O6.[10]:763 Transition metal antimonites are best described as mixed metal oxides.[12]:122 Antimonic acid exists only as the hydrate HSb(OH)6, forming salts containing the antimonate anion Sb(OH)6. Dehydrating metal salts containing this anion yields mixed oxides.[12]:143

Many antimony ores are sulfides, including stibnite (Sb2S3), pyrargyrite (Ag3SbS3), zinkenite, jamesonite, and boulangerite.[10]:757 Antimony pentasulfide is known, but is non-stoichiometric and contains only antimony in the +3 oxidation state.[13] Several thioantimonides are known such as [Sb6S10]2− and [Sb8S13]2−.[14]

Halides

Antimony forms two series of halides: SbX3 and SbX5, where X is one of the halogens. The trihalides SbF3, SbCl3, SbBr3, and SbI3 are all molecular compounds having trigonal pyramidal molecular geometry. The trifluoride SbF3 is prepared by the reaction of Sb2O3 with HF:[10]:761-762

Sb2O3 + HF → 2 SbF3 + 3 H2O

It is Lewis acidic and readily accepts fluoride ions to form the complex anions SbF4 and SbF2−5. Molten SbF3 is a weak electrical conductor. The trichloride SbCl3 is prepared by dissolving Sb2S3 in hydrochloric acid:

Sb2S3 + HCl → 2 SbCl3 + 3 H2S

The pentahalides SbF5 and SbCl5 have trigonal bipyramidal molecular geometry in the gas phase, but in the liquid phase, SbF5 is polymeric, whereas SbCl5 is monomeric.[10]:761 SbF5 is a powerful Lewis acid used to make the superacid fluoroantimonic acid ("HSbF6").

Oxyhalides are common for antimony than arsenic and phosphorus. Antimony trioxide dissolves in concentrated acid to form antimony oxo- (antimonyl) compounds such as SbOCl and (SbO)2SO4.[10]:764

Antimonides

Antimony forms antimonides with metals, such as indium antimonide (InSb), and silver antimonide (Ag3Sb).[10]:760

Hydride and organic derivatives

Organoantimony compounds are typically prepared by alkylation of antimony halides with Grignard reagents. A large variety of compounds are known with both Sb(III) and Sb(V) centers including mixed chloro-organic derivatives, anions, and cations. Examples include Sb(C6H5)3 (triphenylstibine), Sb2(C6H5)4 (with an Sb-Sb bond), and cyclic [Sb(C6H5)]n. Pentacoordinated organoantimony compounds are common, an examples being Sb(C6H5)5 and several related halides.

Treating antimonides with acid produces the unstable gas stibine, SbH3:[15]

Sb3− + 3 H+SbH3

Stibine can also be produced by treating Sb3+ salts with hydride reagents. Antimony does not react with hydrogen directly to form stibine.[8]

History

An unshaded circle surmounted by a cross.
One of the alchemical symbols for antimony

Antimony's sulfide compound, antimony(III) sulfide, Sb2S3 was recognized in antiquity, at least as early as 3000 BC.

An artifact made of antimony dating to about 3000 BC was found at Tello, Chaldea (part of present-day Iraq), and a copper object plated with antimony dating between 2500 BC and 2200 BC has been found in Egypt.[16] One contemporary commented, "we only know of antimony at the present day as a highly brittle and crystalline metal, which could hardly be fashioned into a useful vase, and therefore this remarkable 'find' must represent the lost art of rendering antimony malleable."Moorey, P. R. S. (1994). Paracelsus von Hohenheim (of whom Thölde was one), came to associate the practice of alchemy with the preparation of chemical medicines.

Pure antimony was well known to Jābir ibn Hayyān, sometimes called "the Father of Chemistry", in the 8th century. Here there is still an open controversy: Marcellin Berthelot, who translated a number of Jābir's books, stated that antimony is never mentioned in them, but other authors[who?][19] claim that Berthelot translated only some of the less important books, while the more interesting ones (some of which might describe antimony) are not yet translated, and their content is completely unknown.

The first natural occurrence of pure antimony ('native antimony') in the Earth's crust was described by the Swedish scientist and local mine district engineer [20]

Etymology

The ancient words for antimony mostly have, as their chief meaning, kohl, the sulfide of antimony. Pliny the Elder, however, distinguishes between male and female forms of antimony; his male form is probably the sulfide, while the female form, which is superior, heavier, and less friable, is probably native metallic antimony.[21]

The Egyptians called antimony mśdmt; in hieroglyphics, the vowels are uncertain, but there is an Arabic tradition that the word is ميسديميت mesdemet.[22][23] The Greek word, στίμμι stimmi, is probably a loan word from Arabic or Egyptian sdm

O34
D46
G17 F21
D4

, and is used by the Attic tragic poets of the 5th century BC; later Greeks also used στἰβι stibi, as did Celsus and Pliny, writing in Latin, in the first century AD. Pliny also gives the names stimi [sic], larbaris, alabaster, and the "very common" platyophthalmos, "wide-eye" (from the effect of the cosmetic). Later Latin authors adapted the word to Latin as stibium. The Arabic word for the substance, as opposed to the cosmetic, can appear as تحميض، ثمود، وثمود، وثمود ithmid, athmoud, othmod, or uthmod. Littré suggests the first form, which is the earliest, derives from stimmida, (one) accusative for stimmi.[24]

The use of Sb as the standard chemical symbol for antimony is due to the 18th century chemical pioneer, Jöns Jakob Berzelius, who used this abbreviation of the name stibium. The medieval Latin form, from which the modern languages and late Byzantine Greek, take their names, is antimonium. The origin of this is uncertain; all suggestions have some difficulty either of form or interpretation. The popular etymology, from ἀντίμοναχός anti-monachos or French antimoine, still has adherents; this would mean "monk-killer", and is explained by many early alchemists being monks, and antimony being poisonous.[note 3] So does the hypothetical Greek word ἀντίμόνος antimonos, "against one", explained as "not found as metal", or "not found unalloyed".[16][25] Lippmann conjectured a Greek word, ανθήμόνιον anthemonion, which would mean "floret", and he cites several examples of related Greek words (but not that one) which describe chemical or biological efflorescence.[26]

The early uses of antimonium include the translations, in 1050-1100, by Constantine the African of Arabic medical treatises.[27] Several authorities believe that antimonium is a scribal corruption of some Arabic form; Meyerhof derives it from ithmid;[28] other possibilities include Athimar, the Arabic name of the metal, and a hypothetical *as-stimmi, derived from or parallel to the Greek.[29]

Applications

Flame retardants

The main use of antimony is in the form of antimony trioxide is used in the making of flame-proofing compounds. Markets for these flame-retardant applications include children's clothing, toys, aircraft and automobile seat covers. It is also used in the fiberglass composites industry as an additive to polyester resins for such items as light aircraft engine covers. The resin will burn while a flame is held to it but will extinguish itself as soon as the flame is removed.Fireproofing consumes about half of the annual production.[6]

Alloys

Antimony forms a highly useful alloy with lead, increasing its hardness and mechanical strength. The Sb-Pb alloy is use in lead-acid batteries.[6][30] It is used in antifriction alloys, such as Babbit metal.[31]. It is used as an alloy in small arms ammunition, buckshot, tracer ammunition, cable sheathing, type metal (e.g. for linotype printing machines[32]), solder – some "lead-free" solders contain 5% Sb[33], in pewter[34], and in hardening alloys with low tin content in the manufacturing of organ pipes.

Other applications

The second main application is as a catalyst for the production of the polymer polyethyleneterephthalate. It is an additive in some glasses.

Niche applications

Microelectronics

In tiny amounts, antimony is increasingly being used in the semiconductor industry as a dopant for ultra-high conductivity n-type silicon wafers[35] in the production of diodes, infrared detectors, and Hall-effect devices.

In the 1950s, tiny beads of a lead-antimony alloy were used to dope the emitters and collectors of NPN alloy junction transistors with antimony.[36]

Medical

Few biological or medical applications exist for antimony. Treatments principally containing are known as antimonials and are used as emetics.

Antimony compounds are used as antiprotozoan drugs. Antimony potassium tartrate, or tartar emetic, was once used as an anti-schistosomal drug, subsequently replaced by praziquantel.

Antimony and its compounds are used in several veterinary preparations like anthiomaline or lithium antimony thiomalate, which is used as a skin conditioner in ruminants.

Antimony has a nourishing or conditioning effect on keratinized tissues, at least in animals. Antimony-based drugs, such as meglumine antimoniate, are also considered the drugs of choice for treatment of leishmaniasis in domestic animals. Unfortunately, as well as having low therapeutic indices, the drugs are poor at penetrating the bone marrow, where some of the Leishmania amastigotes reside, and so cure of the disease – especially the visceral form – is very difficult.

Elemental antimony as an antimony pill was once used as a medicine. It could be reused by others after ingestion.

Other uses

In the heads of some safety matches [37] in nuclear reactors together with beryllium in startup neutron sources.

Precautions

Antimony and many of its compounds are toxic, and the effects of antimony poisoning are similar to arsenic poisoning. Inhalation of antimony dust is harmful and in certain cases may be fatal; in small doses, antimony causes headaches, dizziness, and depression. Larger doses such as prolonged skin contact may cause dermatitis; otherwise it can damage the kidneys and the liver, causing violent and frequent vomiting, and will lead to death in a few days.

Antimony is incompatible with strong oxidizing agents, strong acids, halogen acids, chlorine, or fluorine. Keep away from heat.[38]

Antimony leaches from polyethylene terephthalate (PET) bottles into liquids[39]. While levels observed for bottled water are below drinking water guidelines,[40][41] fruit juice concentrates (for which no guidelines are established) produced in the UK were found to contain up to 44.7 µg/L of antimony, well above the EU limits for tap water of 5 µg/L.[42][43] The guidelines are:

See also


Notes

  1. ^ In the UK, the variable vowel /ɵ/ is usually pronounced as a schwa [ə]; in the US, it is generally a full [oʊ].
  2. ^ In the UK, the variable vowel /ɵ/ is usually pronounced as a schwa [ə]; in the US, it is generally a full [oʊ].
  3. ^ The use of a symbol resembling an upside down "female" symbol for antimony could also hint at a satirical pun in this origin

References

  1. ^ Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics 81st edition, CRC press.
  2. ^ "Metals Used in Coins and Medals". ukcoinpics.co.uk. http://www.ukcoinpics.co.uk/metal.html. 
  3. ^ Wang, Chung Wu (1919). "The Chemistry of Antimony". Antimony: Its History, Chemistry, Minerology, Geology, Metallurgy, Uses, Preparation, Analysis, Production and Valuation with Complete Bibliographies. London, United Kingdom: Charles Geiffin and Co. Ltd. pp. 6–33. http://library.sciencemadness.org/library/books/antimony.pdf. 
  4. ^ "Antimony Statistics and Information". United States Geological Survey. http://minerals.usgs.gov/minerals/pubs/commodity/antimony/. 
  5. ^ Peng, J (2003). "Samarium–neodymium isotope systematics of hydrothermal calcites from the Xikuangshan antimony deposit (Hunan, China): the potential of calcite as a geochronometer". Chemical Geology 200: 129. doi:10.1016/S0009-2541(03)00187-6. 
  6. ^ a b c Sabina C. Grund, Kunibert Hanusch, Hans J. Breunig, Hans Uwe Wolf “Antimony and Antimony Compounds” in Ullmann's Encyclopedia of Industrial Chemistry 2006, Wiley-VCH, Weinheim. doi: 10.1002/14356007.a03_055.pub2
  7. ^  
  8. ^ a b Greenwood, N. N.; & Earnshaw, A. (1997). Chemistry of the Elements (2nd Edn.), Oxford:Butterworth-Heinemann. ISBN 0-7506-3365-4.
  9. ^ Daniel L. Reger; Scott R. Goode; David W. Ball (2009). Chemistry: Principles and Practice (3rd ed.). Cengage Learning. p. 883. 
  10. ^ a b c d e f g Wiberg, Egon; Wiberg, Nils and Holleman, Arnold Frederick (2001). Inorganic chemistry. Academic Press. 
  11. ^ a b James E. House (2008). Inorganic chemistry. Academic Press. p. 502. 
  12. ^ a b S. M. Godfrey; C. A. McAuliffe; A. G. Mackie; R. G. Pritchard (1998). Nicholas C. Norman. ed. Chemistry of arsenic, antimony, and bismuth. Springer. ISBN 075140389X. 
  13. ^ Long, G (1969). "The oxidation number of antimony in antimony pentasulfide". Inorganic and Nuclear Chemistry Letters 5: 21. doi:10.1016/0020-1650(69)80231-X. 
  14. ^ Lees, R; Powell, A; Chippindale, A (2007). "The synthesis and characterisation of four new antimony sulphides incorporating transition-metal complexes". Journal of Physics and Chemistry of Solids 68: 1215. doi:10.1016/j.jpcs.2006.12.010. 
  15. ^ Louis Kahlenberg (2008). Outlines of Chemistry – A Textbook for College Students. READ BOOKS. pp. 324–325. ISBN 140976995X. 
  16. ^ a b Kirk-Othmer Encyclopedia of Chemical Technology, 5th ed. 2004. Entry for antimony.
  17. ^ Already in 1710 Wilhelm Gottlob Freiherr von Leibniz, after careful inquiry, concluded that the work was spurious, that there was no monk named Basilius Valentinus, and the book's author was its ostensible editor, Johann  
  18. ^ s.v. "Basilius Valentinus." Harold Jantz was perhaps the only modern scholar to deny Thölde's authorship, but he too agrees that the work dates from after 1550: see his catalogue of German Baroque literature.
  19. ^ Dampier, William Cecil (1961). A history of science and its relations with philosophy & religion.. London: Cambridge U.P.. p. 73. ISBN 9780521093668. http://books.google.com/?id=6kM4AAAAIAAJ&pg=PA73. 
  20. ^ "Native antimony". Mindat.org. http://www.mindat.org/min-262.html. 
  21. ^ Pliny, Natural history, 33.33; W.H.S. Jones, the Loeb Classical Library translator, supplies a note suggesting the identifications.
  22. ^ Albright, W. F. (1918). "Notes on Egypto-Semitic Etymology. II". The American Journal of Semitic Languages and Literatures 34 (4): 230. http://links.jstor.org/sici?sici=1062-0516%28191807%2934%3A4%3C215%3ANOEEI%3E2.0.CO%3B2-J. 
  23. ^ Sarton, George (1935). "Review of Al-morchid fi'l-kohhl, ou Le guide d'oculistique, translated by Max Meyerhof" (in French). Isis 22 (2): 541. http://links.jstor.org/sici?sici=0021-1753%28193502%2922%3A2%3C539%3A%28FOLGD%3E2.0.CO%3B2-L.  quotes Meyerhof, the translator of the book he is reviewing.
  24. ^ LSJ, s.v., vocalisation, spelling, and declension vary; Endlich, p.28; Celsus, 6.6.6 ff; Pliny Natural History 33.33; Lewis and Short: Latin Dictionary. OED, s. "antimony".
  25. ^ Fernando, Diana (1998). Alchemy : an illustrated A to Z. Blandford.  Fernando even derives it from the story of how "Basil Valentine" and his fellow monastic alchemists poisoned themselves by working with antimony; antimonium is found two centuries before his time. "Popular etymology" from OED; as for antimonos, the pure negative would be more naturally expressed by a- "not".
  26. ^ Lippman, p.643-5
  27. ^ Lippman, p.642, writing in 1919, says "zuerst".
  28. ^ Meyerhof as quoted in Sarton, asserts that ithmid or athmoud became corrupted in the medieval "traductions barbaro-latines".; the OED asserts that some Arabic form is the origin, and if ithmid is the root, posits athimodium, atimodium, atimonium, as intermediate forms.
  29. ^ Endlich, p.28; one of the advantages of as-stimmi would be that it has a whole syllable in common with antimonium.
  30. ^ Kiehne, Heinz Albert (2003). "Types of Alloys". Battery technology handbook. CRC Press. pp. 60–61. ISBN 9780824742492. http://books.google.com/?id=1HSsx9fPAKkC&pg=PA60. 
  31. ^ Williams, Robert S. (2007). Principles of Metallography. Read books. pp. 46–47. ISBN 9781406746716. http://books.google.com/?id=KR82QRlAgUwC&pg=PA46. 
  32. ^ Holmyard, E. J. (2008). Inorganic Chemistry – A Textbooks for Colleges and Schools. pp. 399–400. ISBN 9781443722537. http://books.google.com/?id=IYZezyEvZ78C&pg=PA399. 
  33. ^ Ipser, H.; Flandorfer, H.; Luef, Ch.; Schmetterer, C.; Saeed, U. (2007). "Thermodynamics and phase diagrams of lead-free solder materials". Journal of Materials Science: Materials in Electronics 18 (1–3): 3–17. doi:10.1007/s10854-006-9009-3. 
  34. ^ Hull, Charles (1992). Pewter. Osprey Publishing. pp. 1–5. ISBN 9780747801528. http://books.google.com/?id=3_zyycVRw18C. 
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  36. ^ Maiti,, C. K. (2008). Selected Works of Professor Herbert Kroemer. World Scientific, 2008. p. 101. ISBN 9789812709011. http://books.google.com/?id=_7fOlKRDcCkC&pg=PA101. 
  37. ^ National Research Council (1970). Trends in usage of antimony: report. National Academies. p. 50. http://books.google.com/?id=TyQrAAAAYAAJ&pg=PA50. 
  38. ^ MSDS, Baker
  39. ^ "Antimony leaching from polyethylene terephthalate (PET) plastic used for bottled drinking water:". National Center for Biotechnology Information, U.S. National Library of Medicine. http://www.ncbi.nlm.nih.gov/pubmed/17707454. 
  40. ^ a b Shotyk, W.; Krachler, M.; Chen, B. (2006). "Contamination of Canadian and European bottled waters with antimony from PET containers.". Journal of environmental monitoring : JEM 8 (2): 288–92. doi:10.1039/b517844b. PMID 16470261. 
  41. ^ "London Free Press:". Lfpress.com. http://www.lfpress.com/cgi-bin/publish.cgi?p=120232&x. 
  42. ^ Hansen, Claus; Tsirigotaki, Alexandra; Bak, Søren Alex; Pergantis, Spiros A.; Stürup, Stefan; Gammelgaard, Bente; Hansen, Helle Rüsz (17 February 2010). "Elevated antimony concentrations in commercial juices". Journal of Environmental Monitoring 12 (4): 822. doi:10.1039/b926551a. PMID 20383361. http://www.rsc.org/Publishing/Journals/EM/article.asp?doi=b926551a. 
  43. ^ Borland, Sophie (1. March 2010). "Fruit juice cancer warning as scientists find harmful chemical in 16 drinks". Daily Mail. http://www.dailymail.co.uk/news/article-1254534/Fruit-juice-cancer-warning-scientists-harmful-chemical-16-drinks.html. 
  44. ^ Wakayama, Hiroshi, "Revision of Drinking Water Standards in Japan", Ministry of Health, Labor and Welfare (Japan), 2003; Table 2, p. 84

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