CAS number : 7783-00-8
Molecular weight :128.97
Molecular formula/chemical symbol :H2SeO3
Description :
Colorless hexagonal crystal. Insoluble in water. Soluble in ethanol. Insoluble in ammonia
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Selenous acid[1] |
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Selenous acid |
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Identifiers |
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7783-00-8 |
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1060 |
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D05814 |
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Jmol-3D images |
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Properties |
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H2SeO3 |
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128.97 g/mol |
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Appearance |
white hygroscopic crystals |
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3.0 g/cm3 |
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decomposes at 70°C |
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Solubility in water |
very soluble |
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soluble in ethanol |
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Related compounds |
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Other anions |
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Other cations |
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Related compounds |
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USES :
Can
be used as the oxidant system other selenium compounds
Effective
drugs used for making treatment of endemic Keshan disease, sodium selenite,
pharmaceutical intermediates, chemical reagents, used as a chemical reagent and
the reducing agent
Report :
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Product name |
Selenious acid |
CAS：7783-00-8 |
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Description |
Colorless hexagonal crystal |
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TEST ITEMS |
TEST RESULT( % ) |
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Analytical grade |
Chemically pure |
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H2O3Se |
≥ 97.0 |
95.0 |
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Water Insoluble |
≤ 0.005 |
0.01 |
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Residue on ignition |
≤ 0.1 |
0.2 |
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Cl |
≤ 0.005 |
0.005 |
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Sulfate and selenate |
≤ 0.05 |
0.1 |
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N |
≤ 0.05 |
0.05 |
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Fe |
≤ 0.002 |
0.005 |
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Heavy metals (as Pb) |
≤ 0.02 |
0.06 |
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