A6741012
Potassium chromate , AR,99.5% , 7789-00-6
Synonym(s):
Chromate standard for aqueous matrices ready foruse, Nota 1 A;chromic acid potassium salt;Potassium chromate
CAS NO.：7789-00-6
Empirical Formula: CrK2O4
Molecular Weight: 194.19
MDL number: MFCD00011368
EINECS: 232-140-5
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 971 °C (lit.) |
| Density | 1.00 g/mL at 20 °C |
| bulk density | 1400kg/m3 |
| vapor density | 6.7 (vs air) |
| storage temp. | Store below +30°C. |
| solubility | H2O: soluble |
| form | Solid |
| Specific Gravity | 2.732 |
| color | Yellow |
| PH | 9.0-9.8 (50g/l, H2O, 20℃) |
| Water Solubility | 640 g/L (20 ºC) |
| Merck | 14,7622 |
| Exposure limits | ACGIH: TWA 0.0002 mg/m3; STEL 0.0005 mg/m3 (Skin) OSHA: Ceiling 0.1 mg/m3 NIOSH: IDLH 15 mg/m3; TWA 0.0002 mg/m3 |
| Stability: | Stable. Strong oxidizing agent - contact with combustible materials may lead to fire or violent reaction. Incompatible with strong reducing agents, combustible materials. |
| InChIKey | XMXNVYPJWBTAHN-UHFFFAOYSA-N |
| CAS DataBase Reference | 7789-00-6(CAS DataBase Reference) |
| EPA Substance Registry System | Potassium chromate(VI) (7789-00-6) |
Description and Uses
It is used as an oxidizing agent.
Safety
| Symbol(GHS) |    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,O |
| Risk Statements | 49-46-43-51/53-8-50/53-36/37/38-22-45-52/53-25-42/43-20 |
| Safety Statements | 53-45-60-61-36/37-26-23 |
| RIDADR | UN 3288 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | GB2940000 |
| TSCA | Yes |
| HazardClass | 5.1 |
| PackingGroup | III |
| HS Code | 28415000 |
| Hazardous Substances Data | 7789-00-6(Hazardous Substances Data) |
| Limited Quantities | 5 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid) |
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L) |