Potassium dichromate
SIGALD/P5271 - ReagentPlus®, ≥99.5%
Synonym: Potassium bichromate
CAS Number: 7778-50-9
Empirical Formula (Hill Notation): Cr2K2O7
Molecular Weight: 294.18
EC Number: 231-906-6
MDL Number: MFCD00011367
Linear Formula: K2Cr2O7
Product Type: Chemical
| assay | ≥99.5% |
| form | powder |
| grade | reagent grade |
| InChI | 1S/2Cr.2K.7O/q;;2*+1;;;;; |
| InChI key | KMUONIBRACKNSN-UHFFFAOYSA |
| mp | 398 °C (lit.) |
| pH | 3.6 (100 g/L) |
| product line | ReagentPlus® |
| Quality Level | 200 ![]() |
| reaction suitability | reagent type: oxidant |
| SMILES string | [K+].[K+].[O-][Cr](=O)(=O |
| solubility | water: soluble (ca.29.4 g/l at 20 °C (68 °F)) |
| Application: | Potassium dichromate can be used as an oxidant:• For the oxidation of alcohols to aldehydes. • In the graft-polymerization of polyacrylonitrile film with polyaniline. • To synthesize oxidized nanocellulose. |
| Legal Information: | ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany |
| Packaging: | 2 kg in poly bottle |
| Packaging: | 25 g in glass bottle |
| Packaging: | 500 g in poly bottle |
| Symbol | ![]() ![]() ![]() ![]() GHS03,GHS05,GHS06,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H272 - H301 - H312 - H314 - H317 - H330 - H334 - H335 - H340 - H350 - H360FD - H372 - H410 |
| Precautionary statements | P210 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | O,T+,N |
| Risk Statements | 45-46-60-61-8-25-26-27-34-42/43-48/23-50/53 |
| Safety Statements | 53-26-36/37-45-60-61 |
| RIDADR | UN3086 - class 6.1 - PG 2 - EHS - RQ -Toxic solids, oxidizing, n |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.5% |
| mp | 398 °C (lit.) |
| UNSPSC | 12352302 |






