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Arsenic trichloride information


Arsenic trichloride
Ball-and-stick model of arsenic trichloride
Names
Other names
Arsenic(III) chloride, Arsenous trichloride, Arsine trichloride, Butter of arsenic, de Valagin's solution, Trichloroarsine
Identifiers
CAS Number
  • 7784-34-1 checkY
3D model (JSmol)
  • Interactive image
ChemSpider
  • 22974 checkY
ECHA InfoCard 100.029.144 Edit this at Wikidata
EC Number
  • 232-059-5
PubChem CID
  • 24570
RTECS number
  • CG1750000
UNII
  • 5XW39M1300
UN number 1560
CompTox Dashboard (EPA)
  • DTXSID3042556 Edit this at Wikidata
InChI
  • InChI=1S/AsCl3/c2-1(3)4 checkY
    Key: OEYOHULQRFXULB-UHFFFAOYSA-N checkY
  • InChI=1/AsCl3/c2-1(3)4
    Key: OEYOHULQRFXULB-UHFFFAOYAG
SMILES
  • Cl[As](Cl)Cl
Properties
Chemical formula
AsCl3
Molar mass 181.28 g/mol
Appearance colourless oily liquid
Density 2.163 g/cm3, liquid
Melting point −16.2 °C (2.8 °F; 256.9 K)
Boiling point 130.2 °C (266.4 °F; 403.3 K)
Solubility in water
Hydrolyzes
Solubility soluble in alcohol, ether, HCl, HBr, chloroform, CCl4[1]
Magnetic susceptibility (χ)
-79.9·10−6 cm3/mol
Refractive index (nD)
1.6006
Viscosity 9.77 x 10−6 Pa s
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
Very toxic, carcinogen, corrosive, decomposes on contact with water releasing HCl
GHS labelling:
Pictograms
GHS05: CorrosiveGHS06: ToxicGHS08: Health hazardGHS09: Environmental hazard
Signal word
Danger
Hazard statements
H301, H310, H314, H331, H350, H410
Precautionary statements
P201, P202, P260, P261, P262, P264, P270, P271, P273, P280, P281, P301+P310, P301+P330+P331, P302+P350, P303+P361+P353, P304+P340, P305+P351+P338, P308+P313, P310, P311, P321, P322, P330, P361, P363, P391, P403+P233, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 4: Very short exposure could cause death or major residual injury. E.g. VX gasFlammability 0: Will not burn. E.g. waterInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazards (white): no code
4
0
1
Lethal dose or concentration (LD, LC):
LD50 (median dose)
48 mg/kg
LCLo (lowest published)
100 mg/m3 (cat, 1 hr)
200 mg/m3 (cat, 20 min)
338 ppm (rat, 10 min)[3]
NIOSH (US health exposure limits):
PEL (Permissible)
[1910.1018] TWA 0.010 mg/m3[2]
REL (Recommended)
Ca C 0.002 mg/m3 [15-minute][2]
IDLH (Immediate danger)
Ca [5 mg/m3 (as As)][2]
Related compounds
Other anions
Arsenic trioxide, Arsenic trifluoride
Other cations
Antimony trichloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)
Infobox references

Arsenic trichloride is an inorganic compound with the formula AsCl3, also known as arsenous chloride or butter of arsenic. This poisonous oil is colourless, although impure samples may appear yellow. It is an intermediate in the manufacture of organoarsenic compounds.[4]

  1. ^ John Rumble (June 18, 2018). CRC Handbook of Chemistry and Physics (99th ed.). CRC Press. pp. 4–41. ISBN 978-1138561632.
  2. ^ a b c NIOSH Pocket Guide to Chemical Hazards. "#0038". National Institute for Occupational Safety and Health (NIOSH).
  3. ^ "Arsenic (inorganic compounds, as As)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
  4. ^ Sabina C. Grund, Kunibert Hanusch, Hans Uwe Wolf "Arsenic and Arsenic Compounds" in Ullmann's Encyclopedia of Industrial Chemistry, VCH-Wiley, 2008, Weinheim.doi:10.1002/14356007.a03_113.pub2

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Arsenic trichloride

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example). Only in China are arsenic ores intentionally mined. In the laboratory, it is prepared by hydrolysis of arsenic trichloride: 2 AsCl3 + 3 H2O → As2O3...

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reaction of arsenic trichloride and potassium iodide: AsCl3 + 3KI → AsI3 + 3 KCl Hydrolysis occurs only slowly in water forming arsenic trioxide and...

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angles of 99.6–100.5°. This compound is prepared by the reaction of arsenic trichloride with chlorobenzene using sodium as the reducing agent: AsCl3 + 3...

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Metalloid

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properties (its reaction with concentrated hydrochloric acid to form arsenic trichloride) as being alcoholic, in analogy with the formation of covalent alkyl...

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mercaptan for the synthesis of rubber. The company also produced arsenic trichloride, thionyl chloride, and hexachlorobenzene. Hooker expanded into plastics...

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Henri Moissan

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produced by the electrolysis of molten arsenic trichloride; the gas was reabsorbed by the arsenic trichloride. Moissan eventually succeeded in isolating...

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Lewisite

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use for the compound". The compound is prepared by the addition of arsenic trichloride to acetylene in the presence of a suitable catalyst: AsCl3 + C2H2...

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ASCL

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Association of School and College Leaders Astrophysics Source Code Library Arsenic trichloride (AsCl3) Atlantic Shopping Centres Limited, now known as Crombie REIT...

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warfare purposes, employed a reaction between chlorobenzene and arsenic trichloride in the presence of sodium. The German process, used in the first...

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Arsole

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phenylarsenous dichloride (C6H5AsCl2) in ether. Substituting in this reaction arsenic trichloride for phenylarsenous dichloride yields 1-chloro-2,3,4,5-tetraphenylarsole...

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Pnictogen

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Glossary of chemical formulae

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