Selenous acid
ALDRICH/211176 - 98%
Synonym: Selenious acid
CAS Number: 7783-00-8
Empirical Formula (Hill Notation): H2O3Se
Molecular Weight: 128.97
EC Number: 231-974-7
MDL Number: MFCD00011331
Linear Formula: H2SeO3
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 211176-250G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 211176-10G
| assay | 98% |
| density | 3.004 g/mL at 25 °C ((lit.)) |
| 3.004 g/mL at 25 °C (lit.) | |
| form | solid |
| InChI | 1S/H2O3Se/c1-4(2)3/h(H2,1 |
| InChI key | MCAHWIHFGHIESP-UHFFFAOYSA |
| mp | 70 °C ((lit.)) |
| 70 °C (dec.) (lit.) | |
| Quality Level | 200  |
| SMILES string | O[Se](O)=O |
| solubility | water: 50 mg/mL |
| Application: | Selenous acid can be used as a reagent to synthesize:• α-Ketoacecta • 4-Formyl-7-methylcoumar • Selenium substituted quinoxaline derivatives from 2,3-dichloro quionoxaline. |
| Packaging: | 10, 50, 250 g in glass bottle |
| Symbol |    GHS06,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H301 + H331 - H373 - H410 |
| Precautionary statements | P273 - P301 + P310 + P330 - P304 + P340 + P311 - P314 |
| Hazard Codes | T,N |
| Risk Statements | 23/25-33-50/53 |
| Safety Statements | 20/21-28-45-60-61 |
| RIDADR | UN 3283 6.1 / PGII |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 98% |
| mp | 70 °C ((lit.)); 70 °C (dec.) (lit.) |
| Density | 3.004 g/mL at 25 °C ((lit.)); 3.004 g/mL at 25 °C (lit.) |
| UNSPSC | 12352301 |