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Sodium dichromate / Disodium salt | |
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MF |
Na2Cr2O7 |
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GOST |
2651-78 |
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CAS No. |
10588-01-9 |
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EINECS No. |
234-190-3 |
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UN No. |
3288 |
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RTECS No. |
HX7750000 |
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Place of Origin |
Russian Federation |
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Grade Standard |
Industrial Grade |
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Purity |
98,2% min |
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Appearance |
non-caking crystal light orange to dark red color |
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Application |
tanning industry, textile industry, oil and gas industry, etc…. |
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1 |
Mass fraction of sodium dichromate (Na2Cr2O7),%, not less |
98.2 |
|
2 |
In terms of chromic anhydride (SgOz). %. %. не менее at least |
75.0 |
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3 |
Mass fraction of sulfate in terms of SO4,%, not more |
0.2 |
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4 |
Mass fraction of chlorides as C1,%, not more |
0.4 |
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5 |
Insoluble in water,%, not more |
0.02 |
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6 |
Total iron (Fe),%, not more |
0.003 |
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7 |
pH of the aqueous solution, at least |
3.5 |
• 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);