Potassium chromate
SIGALD/12249 - puriss., ≥99%
CAS Number: 7789-00-6
Empirical Formula (Hill Notation): CrK2O4
Molecular Weight: 194.19
EC Number: 232-140-5
MDL Number: MFCD00011368
Linear Formula: K2CrO4
Product Type: Chemical
| anion traces | chloride (Cl-): ≤50 mg/kg |
| sulfate (SO42-): ≤200 mg/kg | |
| assay | ≥99% |
| cation traces | Ca: ≤50 mg/kg |
| form | powder or crystals |
| grade | puriss. |
| InChI | 1S/Cr.2K.4O/q;2*+1;;;2*-1 |
| InChI key | XMXNVYPJWBTAHN-UHFFFAOYSA |
| loss | ≤0.5% loss on drying, 105 °C |
| mp | 971 °C (lit.) |
| pH | 8.5-10.0 (20 °C, 5%) |
| Quality Level | 100  |
| SMILES string | [K+].[K+].[O-][Cr]([O-])( |
| solubility | water: soluble (39.4 g/l at 30 °C (86 °F), 637 g/l at 20 °C (68 °F)) |
| vapor density | 6.7 (vs air) |
| Application: | • Analysis of the Effects of Cr(VI) Exposure on mRNA Modifications.: This research investigates the impact of potassium chromate exposure on mRNA modifications using sophisticated analytical chemistry techniques, revealing insights into the molecular mechanisms of chromium toxicity and its implications for human health (Chen et al., 2019  ).• Determination of urine oxalate level in rats with renal calcium oxalate calculus by high-performance liquid chromatography.: Utilizing potassium chromate in the chromatographic analysis, this study presents a method for accurately measuring urine oxalate levels, crucial for research on kidney stone prevention (Cao et al., 2015 ).• Shotgun proteomic analysis unveils survival and detoxification strategies by Caulobacter crescentus during exposure to uranium, chromium, and cadmium.: Incorporates potassium chromate to study microbial resistance mechanisms through proteomic profiling, providing valuable data for bioremediation strategies (Yung et al., 2014 ).• Analytical study of modern paint layers on metal knight shields: the use and effect of titanium white.: Features methods where potassium chromate aids in the identification of chemical components in cultural heritage conservation studies (Lauridsen et al., 2014 ). |
| Symbol |    GHS07,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H315 - H317 - H319 - H335 - H340 - H350i - H410 |
| Precautionary statements | P202 - P273 - P280 - P302 + P352 - P305 + P351 + P338 - P308 + P313 |
| Hazard Codes | T,N |
| Risk Statements | 49-46-25-36/37/38-43-50/53 |
| Safety Statements | 53-45-60-61 |
| RIDADR | UN3288 - class 6.1 - PG 3 - EHS - RQ - Toxic solid, inorganic, n |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99% |
| mp | 971 °C (lit.) |
| UNSPSC | 12352300 |