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Sodium dichromate

 
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TECHNICAL DATA
 
Sodium dichromate / Disodium salt
MF
Na2Cr2O7
GOST
2651-78
CAS No.
10588-01-9
EINECS No.
234-190-3
UN No.
3288
RTECS No.
HX7750000
Place of Origin
Russian Federation
Grade Standard
Industrial Grade
Purity
98,2% min
Appearance
non-caking crystal light orange to dark red color
Application
tanning industry, textile industry, oil and gas industry, etc….
 
QUALITY SPECIFICATION

1

Mass fraction of sodium dichromate (Na2Cr2O7),%, not less

98.2

2

In terms of chromic anhydride (SgOz). %. %. не менее at least

75.0

3

Mass fraction of sulfate in terms of SO4,%, not more

0.2

4

Mass fraction of chlorides as C1,%, not more

0.4

5

Insoluble in water,%, not more

0.02

6

Total iron (Fe),%, not more

0.003

7

pH of the aqueous solution, at least

3.5

 
Application

• in the leather and fur industry for tanning leather and fur;

• in the textile industry as a mordant in dyeing of fabrics;

• in the production of catalysts, mineral and organic dyes;

• in the oil and gas industry for drilling wells;

• in other industries in the passivating mixture of anti-freeze for engines, acetylene and cleaning chemicals.

 

Packing

• paper bags with polyethylene liner (net weight 25 kg);

• polypropylene bags or special soft containers (net weight 1,000 kg);
 
 
 
 

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