Ammonium sulfite monohydrate
SIGALD/358983 - 92%
CAS Number: 7783-11-1
Empirical Formula (Hill Notation): H8N2O3S · H2O
Molecular Weight: 134.16
EC Number: 233-484-9
MDL Number: MFCD00150959
Linear Formula: (NH4)2SO3 · H2O
Product Type: Chemical
| assay | 92% |
| density | 1.41 g/mL at 25 °C (lit.) |
| form | crystals |
| InChI | 1S/2H3N.H2O3S.H2O/c;;1-4( |
| InChI key | ASPXBYAQZVXSNS-UHFFFAOYSA |
| Quality Level | 100 ![]() |
| SMILES string | N.N.O.OS(O)=O |
| Application: | Ammonium sulfite monohydrate is used in the wafers cleaning, etching, and silicon modification procedures. |
| General description: | Ammonium sulfite monohydrate is generally used as a reducing agent and sulfonating agent in the organic synthesis. |
| Packaging: | 2.5 kg in glass bottle |
| Packaging: | 500 g in glass bottle |
| Symbol | GHS07 |
| Signal word | Warning |
| Hazard statements | H315 - H319 |
| Precautionary statements | P302 + P352 - P305 + P351 + P338 |
| Hazard Codes | Xi |
| Risk Statements | 31-36/37/38 |
| Safety Statements | 26-36 |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Supplemental Hazard Statements | EUH031 |
| Purity | 92% |
| Density | 1.41 g/mL at 25 °C (lit.) |
| UNSPSC | 12352300 |


