Lithium sulfate
- Số CAS
- 10102-25-7
- Khối lượng phân tử
- 127.96
- Công thức phân tử / ký hiệu hóa học
- LiSO4.H2O
Mô tả
Lithium sulfate is soluble in water, though it does not follow the usual trend of solubility versus temperature — its solubility in water decreases with increasing temperature, as its dissolution is an endothermic process. This property is shared with few inorganic compounds, such as the lanthanoid sulfates.
Lithium sulfate crystals, being piezoelectric, are also used in ultrasound-type non-destructive testing because they are very efficient sound generators. However, they do suffer in this application because of their water solubility.
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Lithium sulfate |
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IUPAC name[hide] Lithium sulfate |
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Other names[hide] Lithium sulphate |
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Identifiers |
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10377-48-7 |
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OJ6419000 |
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Properties[1] |
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Li2SO4 |
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109.94 g/mol |
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Appearance |
White crystalline solid, hygroscopic |
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2.221 g/cm3 (anhydrous) |
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859 °C |
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1377 °C |
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Solubility in water |
monohydrate: |
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Refractive index (nD) |
1.465 (β-form) |
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Thermochemistry |
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Std enthalpy of |
?1436.37 kJ/mol |
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1.07 J/g K |
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Hazards |
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EU Index |
Not listed |
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Related compounds |
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Other cations |
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ỨNG DỤNG
Used as the raw material of special
high-strength glass. Analytical reagent. Pharmaceutical industry
Phiếu kiểm nghiệm
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Product name |
Lithium sulfate |
CAS：10102-25-7 |
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Description |
White crystalline solid, hygroscopic |
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TEST ITEMS |
TEST RESULTS |
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LiSO4·H2O |
≥98.0% |
≥99.0% |
≥99.9% |
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Water insoluble matter |
≤0.02% |
≤0.01% |
≤0.01% |
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Free acid (H2SO4)） |
≤0.02% |
≤0.01% |
≤0.01% |
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Free base ( Li2CO3) |
≤0.01% |
≤0.007% |
≤0.005% |
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Cl |
≤0.01% |
≤0.005% |
≤0.002% |
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（ PO4 ） |
≤0.002% |
≤0.001% |
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Na |
≤0.1% |
≤0.05% |
≤0.01% |
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K |
≤0.05% |
≤0.05% |
≤0.01% |
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Ca |
≤0.05% |
≤0.03% |
≤0.01% |
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Mg |
≤0.01% |
≤0.005% |
≤0.001% |
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Fe |
≤0.002% |
≤0.005% |
≤0.001% |
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Pb |
≤0.002% |
≤0.001% |
≤0.001% |
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