LN7725229
70% , 16721-80-5
CAS NO.：16721-80-5
Empirical Formula: HNaS
Molecular Weight: 56.06
MDL number: MFCD00011124
EINECS: 240-778-0
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 55°C |
| Density | 1,79 g/cm3 |
| RTECS | WE1900000 |
| Flash point: | 90°C |
| solubility | soluble in H2O, EtOh, ethyl ether |
| form | Solid |
| color | Off-white |
| Odor | Rotten eggs odor |
| Water Solubility | 620 g/L (20 ºC) |
| Sensitive | Moisture Sensitive & Hygroscopic |
| Stability: | Stable, but hygroscopic. Flammable solid. May ignite in air. |
| InChI | InChI=1S/Na.H2S/h;1H2/q+1;/p-1 |
| InChIKey | HYHCSLBZRBJJCH-UHFFFAOYSA-M |
| SMILES | [Na]S |
| CAS DataBase Reference | 16721-80-5(CAS DataBase Reference) |
| EPA Substance Registry System | Sodium hydrosulfide (16721-80-5) |
Description and Uses
the copper ore beneficiation,the sulfurous acid dyeing of manmade fibre,the synthesis of organic intermediates,the preparation of auxiliary agent of sulfur dyes,and waste water treatment; raw material to produce ammonium sulphate and ethanethiol
Safety
| Symbol(GHS) |      GHS02,GHS05,GHS06,GHS08,GHS09 |
| Hazard statements | H301-H314-H371-H335-H400-H252-H290 |
| Precautionary statements | P501-P273-P260-P270-P235+P410-P234-P271-P264-P280-P390-P391-P308+P311-P303+P361+P353-P301+P330+P331-P363-P301+P310+P330-P304+P340+P310-P305+P351+P338+P310-P407-P420-P413-P403+P233-P406-P405 |
| Hazard Codes | C,F |
| Risk Statements | 31-34 |
| Safety Statements | 25-36/37/39-45-50A |
| RIDADR | UN 2318 4.2/PG II (SODIUM HYDROSULPHIDE with less than 25 % water of crystallization) |
| RIDADR | UN 2949 8/PG II (SODIUM HYDROSULPHIDE, HYDRATED with not less than 25 % water of crystallization) |
| TSCA | TSCA listed |
| HazardClass | 4.2 |
| PackingGroup | II |
| Hazardous Substances Data | 16721-80-5(Hazardous Substances Data) |
| REACH Registrations | Active |
