| CAS Number | 7783-00-8 |
| Catalog Description | Selenous acid, 97% |
| Synonym | Selenious acid |
| MDL Number | MFCD00011331 |
| Linear formula | H2SeO3 |
| Master Molecular formula | H2O3Se |
| Melting point in C | 70° (decomposes) |
| Density | 3.004 |
| Merck Number | 14,8430 |
| Sensitivity | Hygroscopic |
| Solubility | Freely soluble in water, alcohol. Insoluble in ammonia |
| EC Number | 231-974-7 |
| Shipping | Hazardous for shipping |
| CAS Number | 7783-00-8 |
| UN# | UN3290 |
| Haz Class | 6.1 (8) |
| Packing Group | II |
| Signal Word | Danger |
| Pictogram code 1 |
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| Pictogram code 2 |
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| Pictogram code 3 |
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| H Phrases | H301-H331-H373-H400-H410 |
| P Phrases | P260-P301+P310-P321-P311-P405-P501A |
| TSCA | Yes |
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