Main page (Russian)
Search in database (English)
Properties of substance:
arsenic(III) iodide
Synonyms:
arsenic triiodide
Group of substances:
inorganic
Physical appearance:
red hexagonal crystals
Empirical formula (Hill's system for organic substances):
AsI
3
Structural formula as text:
AsI3
Molar/atomic mass: 455.635
Melting point (°C):
140.4
Boiling point (°C):
400
Solubility (g/100 g of solvent):
arsenic tribromide
: very soluble [
Ref.
]
arsenic trichloride
: soluble [
Ref.
]
benzene
: soluble [
Ref.
]
carbon disulphide
: 5.2 (20°C) [
Ref.
]
chloroform
: soluble [
Ref.
]
diethyl ether
: soluble [
Ref.
]
ethanol
: soluble [
Ref.
]
iodine liquid
: soluble [
Ref.
]
methylene iodide
: 17.4 (12°C) [
Ref.
]
phosphorus tribromide
: soluble [
Ref.
]
phosphorus trichloride
: soluble [
Ref.
]
phosphorus(V) trichloride oxide
: soluble [
Ref.
]
sulfur monochloride
: soluble [
Ref.
]
sulfuryl chloride
: soluble [
Ref.
]
thionyl chloride
: soluble [
Ref.
]
tin tetrachloride
: soluble [
Ref.
]
water
: 6 (25°C) [
Ref.
]
water
: reaction (100°C) [
Ref.
]
Density:
4.39 (15°C, g/cm
3
)
Reactions of synthesis:
Yeild 90%. [
Ref.1
]
As
2
O
3
+ 6KI + 6HCl → 2AsI
3
+ 6KCl + 3H
2
O
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-64.8 (s)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
213 (s)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
105.8 (s)
Molar enthalpy (heat) of fusion Δ
fus
H (kJ/mol):
21.8
Enthalpy (heat) of vaporization Δ
vap
H (kJ/mol):
56.5
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
30.1 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
388.2 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
80.8 (g)
References:
Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 3.17
Inorganic Syntheses. - Vol. 1. - New York and London, 1939. - pp. 103-104
Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 106
Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 522 [Russian]
Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 160-161 [Russian]
Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 930 [Russian]
What information do you need?
© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru