Sodium hydrosulfite
SIGALD/157953 - technical grade
Synonym: Sodium hypodisulfite
CAS Number: 7775-14-6
Empirical Formula (Hill Notation): Na2O4S2
Molecular Weight: 174.11
EC Number: 231-890-0
MDL Number: MFCD00011640
Linear Formula: NaO2SSO2Na
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: 157953-2KG
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: 157953-100G
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: 157953-5G
| assay | ≥82.5% (iodometric) |
| cation traces | heavy metals: ≤0.002% |
| form | powder |
| grade | technical grade |
| InChI | 1S/2Na.H2O4S2/c;;1-5(2)6( |
| InChI key | JVBXVOWTABLYPX-UHFFFAOYSA |
| pH | 7-9 (20 °C, 50 g/L) |
| Quality Level | 200  |
| SMILES string | [Na+].[Na+].[O-]S(=O)S([O |
| solubility | water: soluble(lit.) |
| Application: | Sodium hydrosulfite may be employed as a reducing agent for the reduction of graphite oxide in a study. Sodium hydrosulfite has been used as a fluorescent quenching agent in the encapsulation of polynucleotides via production of asymmetric nanoparticles. It has also be used in the form of buffer for the elution of probe labelled proteins involved in the indentification of cellular targets of covalent kinase inhibitors via mass spectrometry method (MS). |
| General description: | Sodium hydrosulfite (Sodium dithionite, Sodium hypodisulfite, Na2S2O4) is a white crystalline sodium salt. It decomposes in the presence of atmospheric oxygen to afford sodium hydrogen sulfate. It has been prepared by reducing sodium hydrogen sulfite in sulfurous acid solution with zinc. It is widely used for the decolorization prior to dyeing of cloths in the textile industry. |
| Packaging: | 2 kg in glass bottle |
| Packaging: | 5, 100 g in glass bottle |
| Symbol |   GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H251 - H302 - H319 |
| Precautionary statements | P235 - P264 - P270 - P280 - P301 + P312 - P305 + P351 + P338 |
| Hazard Codes | Xn |
| Risk Statements | 7-22-31 |
| Safety Statements | 7/8-26-28-43 |
| RIDADR | UN 1384 4.2 / PGII |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Supplemental Hazard Statements | EUH031 |
| Purity | ≥82.5% (iodometric) |
| UNSPSC | 12352300 |