SZSE：002741
Chemical Reagents
Potassium chromate  COA Report
  • CAS No.：7789-00-6
  • Molecular weight：194.19
  • Aliases：Chromic acid potassium salt
  • Molecular formula：K2CrO4
  • UN Code：3288
  • EC No.：232-140-5
  • HS-No：28415000
Information
Specification category：
Product No. Product name specifications
1.01710.015 Potassium chromate AR500g
1.01710.025 Potassium chromate CP500g
1.01710.035 Potassium chromate CP25kg/Drum
1.01710.045 Potassium chromate AR25kg/Drum
1.01710.055 Potassium chromate Spec25kg Sack
Characteristic： Appearance and properties: Yellow orthorhombic crystal.
Relative density: 2.73(water=1)(20℃)
Melting point(℃): 985
Boiling point(℃): 1000
Solubility: Soluble in water,insoluble in ethanol.
Technical indicators：
Item AR CP
Assay(K2CrO4) ≥99.5% ≥99.0%
pH-value(50g/L solution,25℃) 8.6~9.8 8.6~9.8
Insoluble matter in water ≤0.004% ≤0.01%
Chloride(Cl) ≤0.003% ≤0.005%
Sulfate(SO4) ≤0.02% ≤0.05%
Sodium(Na) ≤0.1% --
Calcium(Ca) ≤0.005% ≤0.01%
Hazard characteristics：

IATA-DGR UN 3288 TOXIC SOLID,INORGANIC N.O.S.(POTASSIUM CHROMATE),6.1,Ⅱ

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