CAS 461-58-5 99.7% white crystal powder dicyandiamide
Chemical properties
Using and storage as specified can not be decomposed and avoid touching with oxide.The solubility in absolute ethanol at 13 °C is 1.26% and in water is 2.26%.Easily soluble in hot water, the aqueous solution will slowly decompose to produce ammonia gas when the temperature is above 80 °C.When the crystal of dicyandiamide is heated to the melting point, it will heat up violently immediately after melting to generate melamine, melamine, etc.
Technical data
|
Item |
Specific |
||
|
High grade |
Qualified |
Electronic grade |
|
|
Appearance |
White crystal |
White crystal |
White crystal |
|
Precipitation of impurities |
Pass |
Pass |
Pass |
|
Content % |
99.7 |
99.5 |
99.8 |
|
Moisture % |
0.30 |
0.30 |
0.2 |
|
Ash % |
0.05 |
0.10 |
0.02 |
|
Melting point ℃ |
209–212 |
208–212 |
209–212 |
|
Calcium content ppm |
≤ 150 |
≤ 200 |
25 |
|
Iron content ppm |
10 |
15 |
2 |
|
Melamine ppm |
≤ 350 |
≤ 500 |
– |
|
Turbidity NTU |
≤ 20 |
≤ 20 |
5 |
|
Chroma |
≤ 10 |
≤ 10 |
– |
Application:
Dicyandiamide compound fertilizer can control the activity of nitrifying bacteria.Regulates the rate of nitrogen fertilizer conversion in the soil,Reduce nitrogen loss and improve fertilizer use efficiency.
As the fine chemical intermediate
In medicine, it is used to produce guanidine nitrate, sulfonamides, etc..It is also used to produce thiourea, nitrocellulose stabilizer, rubber vulcanization accelerator, steel surface hardener, artificial leather filler, adhesive, etc.The pharmaceutical intermediate 5-azacytosine can be obtained by the reaction of dicyandiamide and formic acid.Nitrogen doping of carbon materials as a nitrogen source.
Transportation notice
The packaging should be complete during the transportation,loading should be secure.During transportation, make sure that the container does not leak, collapse, fall or be damaged.It is strictly forbidden to mix and transport with oxidants, acids, alkalis, edible chemicals, etc.During transportation, it should be protected from exposure to sunlight, rain, and high temperature.The vehicle should be thoroughly cleaned after transportation.
Store in a cool, ventilated warehouse.Keep away from fire and heat sources.It should be stored separately from oxidants, acids and alkalis and should not be mixed storage.Equipped with the appropriate variety and quantity of fire equipment.Storage areas should be provided with suitable materials to contain spills.
Package: 20 kg/50 kg/100 kg per pp woven bag;
25 kg/paper-plastic composite bag for electric grade.
Storage method
- Sealed storage at 2℃~8℃,storage in a ventilated and dry place,avoiding touching with other oxides.During transportation and loading, it should be protected from moisture and handled with care.
- Packed in woven bag with plastic inner bag or 5 layers kraft paper bag packing.The mouth of the bag should be tightly sealed and must not leak.
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