Dicyandiamide (DCDA), CAS No. : 461-58-5

Dicyandiamide (DCDA), with the chemical formula C₂H₄N₄, is a white crystalline compound that is used in various industrial and chemical applications. Here’s an overview of its properties and uses:
Properties
- Appearance: White crystalline solid
- Melting Point: Around 208°C (406°F)
- Solubility: Soluble in water and in some organic solvents like ethanol.
- Chemical Structure: It consists of two cyanamide groups (–C≡N) linked by a central nitrogen atom.
Uses:
1. Chemical Industry:
   -Curing Agent: DCDA is used as a curing agent for resins, particularly in the production of melamine-formaldehyde resins. These resins are used in laminates, coatings, and adhesives.
   -Intermediate: It serves as an intermediate in the synthesis of other chemicals, including various pharmaceuticals and agrochemicals.
2. Agriculture:
   - Fertilizers: It is used in the production of slow-release fertilizers. The compound helps in controlling the release of nitrogen, which is essential for plant growth.
3. Textiles:
   - Flame Retardants: DCDA is sometimes used in the textile industry as a flame retardant.
4. Pharmaceuticals:
   - Drug Synthesis: It’s used in the synthesis of certain pharmaceutical compounds and in the preparation of some drug formulations.
Safety and Handling:
- Toxicity: Dicyandiamide can be harmful if ingested or inhaled in large quantities. It is considered to have moderate toxicity, and safety precautions should be observed.
- Handling: Use appropriate protective equipment, such as gloves and eye protection, when handling DCDA. Ensure good ventilation to avoid inhalation of dust.
- Storage: Store in a cool, dry place away from sources of ignition and incompatible substances.
Dicyandiamide is a useful chemical in various applications, particularly in industrial processes, but it must be handled with care due to its potential toxicity.