PROPERTIES | |
Properties | |
Chemical formula | Na2Cr2O7 |
Boiling point | 400 °C (752 °F; 673 K) decomposes |
Density | 2.52 g/cm3 |
Melting point | 356.7 °C (674.1 °F; 629.8 K) |
Molar mass | 261.97 g/mol (anhydrous) |
298.00 g/mol (dihydrate) |
SPECIFICATION | ||
Specification | ||
Main substance (Na2Cr2O3), min | : | 98,9% |
Main substance in coversion to CrO3, min | : | 75.50% |
Sulphates in conversion to SO4, max | : | 0,1% |
Chlorides in conversion to Cl, max | : | 0,2% |
ater insoluble residue, max | : | 0,01% |
Main substance (Fe), max | : | 0,001% |
pH of water, min | : | 3,5 |
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