Lithium chloride
- Số CAS
- 7447-41-8
- Khối lượng phân tử
- 42.39
- Công thức phân tử / ký hiệu hóa học
- LiCl
Mô tả
Lithium chloride is a chemical compound with the formula LiCl. The salt is a typical ionic compound, although the small size of the Li+ ion gives rise to properties not seen for other alkali metal chlorides, such as extraordinary solubility in polar solvents (83g/100 mL of water at 20 °C) and its hygroscopic properties.
The salt forms crystalline hydrates, unlike the other alkali metal chlorides. Mono-, tri-, and pentahydrates are known. It also absorbs up to four equivalents of ammonia. As with any other ionic chlorides, solutions of lithium chloride can serve as a source of chloride ion, e.g. forming a precipitate upon treatment with silver nitrate:
LiCl + AgNO3 → AgCl + LiNO3
LiCl
42.394(4) g/mol
Appearance
white solid
2.068 g/cm3
605 °C
1382 °C (decomp)
Solubility in water
55 g/100 mL (20 °C)
highly soluble in pyridine, nitrobenzene
Refractive index (nD)
1.662
hygroscopic
128.3 g/100 mL (100 °C)
4.1 g/100 mL (acetone)
17 g/100 mL (methanol)
2.5 g/100 mL (ethanol)
Keywords：Chloride
ỨNG DỤNG
For air-conditioning
Used as a flux, desiccant, chemical reagents
Used in making fireworks, dry batteries and lithium
Phiếu kiểm nghiệm
|
Product name |
Lithium chloride |
CAS：7447-41-8 |
|
Description |
Colorless cubic crystals |
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TEST ITEMS |
TEST RESULTS |
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LiCl |
≥99.3％ |
|
|
Na+K |
≤0.003％ |
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SO42- |
≤0.003％ |
|
|
Li2CO3 |
≤0.025％ |
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|
Fe2O3 |
≤0.002％ |
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|
BaCl2 |
≤0.03％ |
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|
H2O |
≤0.60％ |
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