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Properties of substance:
sodium iodate
Group of substances:
inorganic
Physical appearance:
colorless rhombic crystals
Empirical formula (Hill's system for organic substances):
INaO
3
Structural formula as text:
NaIO3
Molar/atomic mass: 197.89
Decomposition temperature (°C):
500
Solubility (g/100 g of solvent):
acetic acid
: soluble [
Ref.
]
dimethylformamide
: 0.05 (25°C) [
Ref.
]
ethanol
: insoluble [
Ref.
]
ethylenediamine
: insoluble [
Ref.
]
water
: 2.48 (0°C) [
Ref.
]
water
: 4.59 (10°C) [
Ref.
]
water
: 9.5 (25°C) [
Ref.
]
water
: 13.3 (40°C) [
Ref.
]
water
: 19.8 (60°C) [
Ref.
]
water
: 26.6 (80°C) [
Ref.
]
water
: 33 (100°C) [
Ref.
]
Density:
4.4 (20°C, g/cm
3
)
Reactions:
[
Ref.1
]
NaIO
3
+ 4NaOH + Cl
2
→ Na
3
H
3
IO
6
+ 2NaCl + H
2
O
[
Ref.1
]
NaIO
3
+ 4NaOH + K
2
S
2
O
8
→ Na
3
H
3
IO
6
+ K
2
SO
4
+ Na
2
SO
4
+ H
2
O
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-490.4 (s)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
35.1 (s)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
135 (s)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
125.5 (s)
LD
50
(mg/kg):
108 (mice, intravenous)
119 (mice, intraperitoneal)
References:
Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 12ed., Vol. 1-5. - Wiley, 2012. - pp. 4017
Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1269-1271
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 84 [Russian]
Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 363 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru
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