Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
Sodium dicyanamide
1. Basic Information
Name: Sodium dicyanamide
Alias: Sodium dicyandiamide salt, Dicyanamide sodium
CAS No.: 1934-75-4
Molecular Formula: NaC?N?
Molecular Weight: 89.03
Category: Cyanamide fine chemical raw material, slow-release nitrogen fertilizer additive, water treatment biocide, epoxy curing agent intermediate, pesticide synthesis building block
2. Physical and Chemical Properties
Physical Properties
- Appearance: White crystalline powder
- Odor: Odorless, slight faint cyanamide irritation odor when dissolved in water
- Solubility: Freely soluble in water; soluble in methanol; slightly soluble in ethanol; insoluble in acetone, ether, benzene, aliphatic hydrocarbons
- Melting Point: Decomposes above 300 ℃ without clear melting point
- Density (predicted): 1.38 g/cm3
- Hygroscopy: Moderately hygroscopic, absorbs moisture and agglomerates in high humidity
- Aqueous property: Weakly alkaline aqueous solution, pH 9.0–10.5; hydrolyzes slowly under heating to produce ammonia, cyanate and carbonate
Chemical Properties
- Molecular structure: Dicyanamide anion combined with sodium cation, contains two cyano groups and amide nitrogen, high nitrogen content
- Slow hydrolysis nitrogen release: Gradually decomposed by soil microorganisms, releases nitrogen for crop absorption, achieves long-term fertilization effect
- Curing crosslinking: Reacts with epoxy resin, formaldehyde to prepare low-temperature curing agents for coatings and adhesives
- Metal complexation: Dicyanamide ion can form complexes with heavy metal ions for wastewater precipitation treatment
- Thermal decomposition: High temperature above 300 ℃ decomposes to release nitrogen, sodium cyanide, cyanogen gas
- Photostability: Stable under normal light, no discoloration under long-term light irradiation
- Compatibility: Compatible with neutral and weakly alkaline raw materials; incompatible with strong acid, strong oxidants, heavy metal salts
3. Main Application Fields
1. Slow Release Fertilizer Additive (Core Application)
Nitrification inhibitor added to urea, ammonium fertilizer; inhibits soil nitrobacteria activity, reduces nitrogen leaching loss, prolongs fertilizer efficiency
2. Epoxy Resin Latent Curing Agent Intermediate
Synthesis raw material for low-temperature single-component epoxy curing agent, used in electronic adhesive, powder coating
3. Industrial Water Treatment Biocide & Heavy Metal Remover
Inhibits algae and bacteria growth in circulating water; precipitates copper, nickel and other heavy metals in electroplating wastewater
4. Pesticide & Pharmaceutical Intermediate
Starting material for synthesizing guanidine, triazine, imidazole series herbicides and bactericides
5. Concrete Additive
Early strength agent and anti-corrosion auxiliary for reinforced concrete, inhibits steel bar rusting
4. Quality Specification Table
| Test Item | Standard Specification |
| CAS Number | 1934-75-4 |
| Molecular Formula | NaC?N? |
| Appearance | Uniform white crystal without yellow agglomeration |
| Purity | Industrial Grade ≥98.0%, Fertilizer Grade ≥95.0% |
| Water Content (KF) | ≤1.00% |
| Chloride Ion | ≤0.10% |
| Cyanide Ion (free) | ≤0.05% |
| Heavy Metals (Pb) | ≤10 ppm |
| Packaging | 25kg PE lined woven bag / plastic fiber drum |
| Storage Condition | Hermetically sealed cool dry warehouse below 25 ℃, isolate humid air and strong acid raw materials |
| Transportation Requirement | Hygroscopic nitrogen-containing organic salt, moisture-proof sealed packaging, separate from food and oxidants |
| Shelf Life | 24 months under sealed dry storage |
Safety Warning
Toxic irritant nitrogen-containing cyanide derivative powder. Dust irritates eyes, nasal tract and respiratory tract; contact with strong acid releases toxic cyanide gas; skin absorption causes dizziness, nausea. All operations must be carried out in fully ventilated fume hood with gas-proof respirator, splash-proof goggles and thick chemical-resistant nitrile gloves. Strictly prohibit mixing with concentrated acid, strong oxidants. Waste liquid fully treated with hypochlorite oxidation and neutralization before discharge; solid waste classified as toxic cyanide hazardous waste disposed by qualified professional institutions.
