1. Used for preparing colloidal solution of metal, coloring of leather, dyeing and etching of fur and hair etc.
2.Mainly used in the production of developer, polymer inhibitor and infrared photography thermosensitizer, also used as medicine and dye intermediates.
3.Used for the analysis and determination of oxygen, antimony, bismuth, cerium, iron, molybdenum, tantalum and niobium, etc.Used in gas analysis to absorb oxygen;Used for the color reaction of nitrite, molybdenum, niobium, titanium, cerium, bismuth, copper, vanadium, iron, iodate, etc.
4.Metal complexing agent.Determination of bismuth and antimony by gravimetric analysis.A reducing agent of gold, silver, mercury salts, phosphomolybdic acid and phosphotungstic acid used in gas analysis to absorb oxygen.
Specification
Appearance |
White powder |
Assay,% |
≥99.50% |
Water content |
≤0.50% |
Melting point |
131-135℃ |
Solubility |
Soluble in water |
Residue on ignition |
≤0.05% |
Chlorides |
≤0.002% |
Sulfates |
≤0.01% |
Gallic acid |
Pass the test |
Flash point |
>230 °F |
Packing
25kg/drum
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