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Properties of substance:
lithium carbide
Group of substances:
inorganic
Physical appearance:
colorless rhombic crystals
Empirical formula (Hill's system for organic substances):
C
2
Li
2
Structural formula as text:
Li2C2
Molar/atomic mass: 37.9
Decomposition temperature (°C):
600
Solubility (g/100 g of solvent):
water
: reaction [
Ref.
]
Density:
1.65 (18°C, g/cm
3
)
Reactions of synthesis:
[
Ref.1
]
2Li + 2C
2
H
2
→ 2LiC
2
H + H
2
2LiC
2
H → Li
2
C
2
+ C
2
H
2
[
Ref.1
]
Li
2
CO
3
+ 4C → Li
2
C
2
+ 3CO
[
Ref.1
]
2Li + 2C → Li
2
C
2
[
Ref.1
]
2LiH + 2C → Li
2
C
2
+ H
2
Reactions:
[
Ref.1
]
Li
2
C
2
→ 2Li + 2C
[
Ref.1
]
Li
2
C
2
+ 2H
2
O → 2LiOH + C
2
H
2
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-59.46 (s)
References:
Binneweis M., Milke E. Thermochemical Data of Elements and Compounds. - 2ed, 2002. - pp. 263
Лидин Р.А., Андреева Л.Л., Молочко В.А. Константы неорганических веществ. - М.: Дрофа, 2006. - pp. 125 [Russian]
Остроушко Ю.И., Бучихин П.И. и др. Литий, его химия и технология. - М.: ИГУИАЭ, 1960. - pp. 52-53 [Russian]
Плющев В.Е., Степин Б.Д. Химия и технология соединений лития, рубидия и цезия. - М.: Химия, 1970. - pp. 44-45 [Russian]
Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 110-111 [Russian]
Химическая энциклопедия. - Т. 2. - М.: Советская энциклопедия, 1990. - pp. 316 [Russian]
Химия и технология редких и рассеянных элементов. - Ч. 1. - М.: Высшая школа, 1976. - pp. 24-25 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru