Dicyandiamide, also known as DICY or DCD, is an organic compound with the chemical formula C2H4N4. It is a dimer of cyanamide and a cyano derivative of guanidine. This substance appears as a white crystalline powder and is soluble in water, alcohol, ethylene glycol, and dimethylformamide. It is nearly insoluble in ether and benzene and remains stable in its dry form.
Parameters
Melting point | 208-211 °C (lit.) |
Boiling point | 144.35°C (rough estimate) |
density | 1.40 |
bulk density | 400kg/m3 |
vapor pressure | 0.001Pa at 20℃ |
refractive index | 1.6260 (estimate) |
storage temp | 2-8°C |
solubility | H2O: 0.1 g/mL, clear |
pka | 0.73±0.70(Predicted) |
form | Crystalline Powder |
color | White |
biological source | rabbit |
Water Solubility | 32 g/L (20 ºC) |
Merck | 14,3092 |
BRN | 605637 |
Stability | Stable. Incompatible with strong acids, strong oxidizing agents, strong bases. |
InChIKey | QGBSISYHAICWAH-UHFFFAOYSA-N |
LogP | -1 at 20℃ |
CAS DataBase Reference | 461-58-5(CAS DataBase Reference) |
NIST Chemistry Reference | Dicyandiamide(461-58-5) |
EPA Substance Registry System | Dicyanodiamide (461-58-5) |
Safety Information
Hazard Codes | Xn,T |
Risk Statements | 20/21/22-43-36/38-25 |
Safety Statements | 22-24/25-45-36-3 |
RIDADR | UN 2811 6.1 / PGIII |
WGK Germany | 1 |
RTECS | ME9950000 |
TSCA | Yes |
HS Code | 29262000 |
Hazardous Substances Data | 461-58-5(Hazardous Substances Data) |
Toxicity | LD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rabbit > 2000 mg/kg |
Raw Material for Guanidine Salts and Cyanamide: Dicyandiamide reacts with acids to produce guanidine salts and with benzonitrile to form cyanamide, which is used in coatings and molding powders.
Dye Fixative: The resin formed from dicyandiamide and formaldehyde acts as a dye fixative in textiles.
Fertilizer Additive: Dicyandiamide-based fertilizers help control nitrifying bacteria, reduce nitrogen loss, and enhance fertilizer efficiency.
Chemical Intermediate: Used in the production of pharmaceuticals, including guanidine nitrate and sulfonamides, as well as thiourea, rubber accelerators, and adhesives.
Industrial Applications: Dicyandiamide is used in testing metals, organic synthesis, resin production, and as a stabilizer, hardener, and detergent ingredient.
