Dicyandiamide
It is a dimer of cyanamide and a cyanide derivative of guanidine. Chemical formula C2H4N4. White crystalline powder. Soluble in water, alcohol, ethylene glycol and dimethylformamide, almost insoluble in ether and benzene. It's not combustible. Stable when dry.
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Serial number |
project |
index |
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superior product |
top quality goods |
qualified product |
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1 |
appearance |
white crystal |
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2 |
Dicyandiamide content(%) |
≥99.5 |
≥99.0 |
≥98.5 |
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3 |
heating loss(%) |
≤0.30 |
≤0.50 |
≤0.60 |
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4 |
ash content(%) |
≤0.05 |
≤0.10 |
≤0.15 |
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5 |
calcium content(%) |
≤0.020 |
≤0.040 |
≤0.050 |
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6 |
Impurity precipitation test |
qualified |
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Purpose：
1、The reaction of dicyandiamide with acid can produce various guanidine salts. The reaction of dicyandiamide and phenylnitrile to phenylmelamine diamine is an intermediate in coatings, laminates and molding powders.
2. Dicyandiamide resin prepared by reaction of dicyandiamide and formaldehyde can be used as dye fixing agent.
3. Dicyandiamide compound fertilizer can control the activities of nitrifying bacteria, adjust the conversion rate of nitrogen fertilizer in the soil, reduce nitrogen loss, and improve the efficiency of fertilizer use.
4, in medicine for the preparation of guanidine nitrate, sulfonamide drugs; It is also used to make thiourea, cellulose nitrate stabilizer, rubber vulcanization accelerator, steel surface hardener,
5, artificial leather fillers, adhesives, etc. The pharmaceutical intermediate 5-azacytosine can be obtained by the reaction of dicyandiamide with formic acid. Nitrogen doping is performed on carbon material as nitrogen source.
