Products Description of Dicyandiamide CAS#461-58-5
Dicyandiamide, also known as cyanoguanidine or DCDA, is a white crystalline powder, having a molecular formula of C2H4N4 and a molecular weight of 84.08. It melts at approximately 208-211 degrees C and shows a density of about 1.40 g/cm3. The compound is sparingly soluble in cold water and ethanol, dissolves well in hot water, acetone and liquid ammonia, and is almost insoluble in ether, benzene and chloroform. It remains stable under dry storage conditions, while its aqueous solution slowly decomposes with ammonia release above 80 degrees C.
As a versatile organic intermediate, dicyandiamide is widely used in the production of amino resins, melamine, epoxy curing agents, pharmaceuticals, agrochemicals and flame retardants. It should be packed in sealed bags lined with PE film and stored in a dry, ventilated and cool place, protected from moisture.
Dicyandiamide Chemical Properties
| Melting point | 208-211 °C (lit.) |
| Boiling point | 144.35°C (rough estimate) |
| density | 1.40 g/cm3 |
| 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 |
| 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 |
Product Application of Dicyandiamide CAS#461-58-5
Dicyandiamide is a highly versatile chemical intermediate widely utilized across the fine chemical and industrial sectors. It serves as a key raw material for the synthesis of melamine, guanidine salts and amino resins, which are further used in laminates, coatings and molding compounds. In the epoxy industry, it acts as a latent curing agent for adhesives, powder coatings and copper clad laminates, offering excellent storage stability and balanced cured properties. The compound is also applied in the manufacture of pharmaceuticals, agrochemicals and dye fixing agents, as well as flame retardant systems. Additionally, it functions as a nitrification inhibitor in nitrogen fertilizers, improving nutrient utilization efficiency and reducing nitrogen loss in agricultural soils.
With such broad applicability and stable supply, dicyandiamide remains an essential building block for resin, pharmaceutical, agricultural and textile related industries worldwide.
