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特別 提示
CAS Number 7789-00-6
Linear Formula K2CrO4
Molecular Weight 194.19
EC Number 232-140-5
MDL number MFCD00011368
PubChem Substance ID 329753699
| Related Categories | Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography, Essential Chemicals, O-P, Puriss p.a. ACS, |
| grade | ACS reagent, reag. Ph. Eur. |
| vapor density | 6.7 (vs air) |
| InChI Key |
XMXNVYPJWBTAHN-UHFFFAOYSA |
| grade | puriss. p.a. |
| assay | ≥99.5% |
| impurities | ≤0.005% in water insoluble matters |
| pH | 8.6-9.8 (20 °C, 5%) |
Potassium chromate (K2CrO4) is the potassium salt having morphological features similar to potassium sulfate (isostructural). Its crystals exhibit rhombic crystal system. It can be manufactured by reacting potassium dichromate with potassium hydroxide. It has been reported to crystallize in orthorhombic space group. Production of potassium chromat by a new reaction system of KOH-KNO3-H2O (binary submolten salt system) has been proposed.
GHS07, GHS08, GHS09
