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  • Product name: Sodium Dichromate
  • Product Number: g02
  • Added time: 2014-01-26
  • Views : 59

Industrial sodium dichromate, sodium dichromate common name, molecular formula Na2Cr2O7 · 2H2O (dihydrate), Na2Cr2O7 (anhydrous), relative molecular mass 298.02 (dihydrate), 262.02 (anhydrous).

Shape: This product is bright orange-red monoclinic needles or small granular crystal, easy deliquescence in the air, easily soluble in water, forming an orange solution, the solution is acidic. In acidic medium, sodium dichromate is a strong oxidant.

Uses: mainly used in the manufacture of chromic anhydride, chrome yellow pigments and other chromium salts are also mainly used for tanning leather, dyes, pigments and other chromium salts manufacturing.
CAS Number :7789 -12-0
UN Number: 3288

 

Physical quality of

Molecular formula

Na2Cr2O7·2H2O

The relative density

2.35 g/cm3

Outside

Bright orange-red needle-like crystals of monoclinic

 

Chemical properties

National Standards

Internal control standards

Conten(Na2Cr2O7·2H2O)%

≥98.3

≥98.5

Sulfate(SO42-)%

≤0.30

≤0.20

Chloride(Cl-)%

≤0.10

≤0.05

 

 

Package: plastic bags containing endometrial, NW 40kg.
Note:  1 do not mix with the food or keep a strong reducing agent;
            2、 the storage should pay attention to moisture, away from flammable materials.