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SZSE：002741
Chemical Reagents
Ammonium dichromate?COA Report
  • CAS No.：7789-09-5
  • Molecular weight：252.07
  • Aliases：Ammonium dichromate
  • Molecular formula：(NH4)2Cr2O7
  • UN Code：1439
  • EC No.：232-143-1
Information
Specification category：
Product No. Product name specifications
1.06087.015 Ammonium dichromate AR500g
1.06087.025 Ammonium dichromate CP500g
1.06087.045 Ammonium dichromate AR25kg
Characteristic： Appearance and properties:Orange yellow monoclinic crystal.
Relative density (water=1):2.15
Relative vapor density:8.7
Concentration:Content: Industrial grade ≥95%.
Solubility:Soluble in water, dissolved in acetone, soluble in ethanol.
Other Properties: 170
Technical indicators：
Item AP CP Assay[(NH4)2Cr2O7] ≥99.0% ≥99.0% Insoluble matter in water ≤0.002% ≤0.005% Chloride (Cl) ≤0.002% ≤0.005% Sulfate (SO4) ≤0.01% ≤0.03% Sodium (Na) ≤0.005% ≤0.05% Potassium (K) ≤0.07% ≤0.16% Calcium (Ca) ≤0.002% ≤0.01% Iron (Fe) ≤0.002% ≤0.005%
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