Sodium dichromate dihydrate
SIGALD/398063 - ACS reagent, ≥99.5%
Synonym: Sodium bichromate
CAS Number: 7789-12-0
Empirical Formula (Hill Notation): Cr2Na2O7 · 2H2O
Molecular Weight: 298.00
EC Number: 234-190-3
MDL Number: MFCD00149166
Linear Formula: Na2Cr2O7 · 2H2O
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: 398063-100G
This image depicts SKU: 398063-100G
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: 398063-500G
This image depicts SKU: 398063-500G
| anion traces | chloride (Cl-): ≤0.005% |
| sulfate (SO42-): ≤0.01% | |
| assay | ≥99.5% |
| cation traces | Al: ≤0.002% |
| Ca: ≤0.003% | |
| form | crystals |
| grade | ACS reagent |
| impurities | ≤0.005% insolubles |
| ≤0.005% NH4OH ppt. | |
| InChI | 1S/2Cr.2Na.2H2O.7O/h;;;;2 |
| InChI key | JYDRNIYTFCBIFC-UHFFFAOYSA |
| mp | 91 °C (lit.) |
| pH | 3.5 (20 °C, 100 g/L) |
| Quality Level | 200  |
| reaction suitability | reagent type: oxidant |
| SMILES string | O.O.[Na+].[Na+].[O-][Cr]( |
| Application: | Sodium dichromate dehydrate may be used in preparing Jones reagent which is employed for oxidation reactions. It may be used in the oxidation of arylalkanes. |
| General description: | Sodium dichromate dehydrate (SDD), a hexavalent chromium compound is commonly used as an oxidizing agent. Chromium (VI) compounds are genotoxic and group 1 IARC (International Agency for Research on Cancer) carcinogen. SDD is one of the common contaminants found in drinking water. Its toxic effects and carcinogenicity has been studied. |
| Packaging: | 100, 500 g in poly bottle |
| Packaging: | 2.5 kg in poly bottle |
| Symbol |      GHS03,GHS05,GHS06,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H272 - H301 - H312 - H314 - H317 - H330 - H334 - H340 - H350 - H360FD - H372 - H410 |
| Precautionary statements | P210 - P260 - P280 - P301 + P310 + P330 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | O,T+,N |
| Risk Statements | 45-46-60-61-8-21-25-26-34-42/43-48/23-50/53 |
| Safety Statements | 53-45-60-61 |
| RIDADR | UN 3086PIH 5.1(6.1) / PGI |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.5% |
| mp | 91 °C (lit.) |
| UNSPSC | 12352300 |