Cyanuric Chloride CAS 108-77-0, Cyanuric Chloride, CAS 108-77-0
Chemical name: Melamine (Also known as melamine, protein essence, melamine amide)
108-77-0
C3Cl3N3
184.41
203-614-9
CAS | 108-77-0 |
Molecular formula | C3Cl3N3 |
Molecular weight | 184.41 |
EIENCS | 203-614-9 |
Form | Solidified Mass or Fragments |
Melting point | 145-147 °C(lit.) |
boling point | 190 °C(lit.) |
Density | 1.92 |
Solubility | reacts |
PKA | -3.26±0.10(Predicted) |
Color | White |
Storage temp |
Chemical name: Melamine (Also known as melamine, protein essence, melamine amide)
Molecular formula: C₃H₆N₆
Molecular weight: 126.12 g/mol
CAS Number: 108-77-0 (Note: In some literature, the CAS number is 108-78-1, but it is actually the same substance.)
EINECS number: 203-615-4
Appearance: White monoclinic crystal, odorless
Solubility: Slightly soluble in cold water (0.33g /L, 20℃), soluble in hot water, glycerol and pyridine; Insoluble in ether, benzene and carbon tetrachloride
Mainstream technology
Urea method (accounting for 90% of the global total) : Urea decomposes into cyanic acid under the catalysis of silica gel (380-400℃) and condenses to form melamine.
Energy consumption: 3.8 tons of urea and 0.5 tons of liquid ammonia are consumed per ton of product.
Capacity distribution
China accounts for 60% of the global production capacity (about 420,000 tons per year by 2025), with Hubei and Shandong being the main production areas.
Industrial material synthesis (Dominant uses)
Resin production: Condenses with formaldehyde to form melamine-formaldehyde resin, which is used in the manufacture of fireproof boards, veneered panels, and tableware (imitation porcelain).
Coatings and adhesives: As a crosslinking agent, it enhances the heat resistance and stain resistance of coatings, and is used in automotive paints and electrical insulating paints.
Functional additive
Flame retardant: Decomposes at high temperatures to release nitrogen, inhibiting combustion.
Water-reducing agent: Enhances the fluidity of concrete (high-efficiency cement water-reducing agent).
Other fields
Paper processing: Producing anti-wrinkle banknote paper and military maps.
Textile auxiliaries: Enhance the shrinkage resistance and corrosion resistance of fibers.
Health risk:
Low acute toxicity: Oral LD₅₀ in rats =3161 mg/kg (low toxicity).
Chronic hazards: Long-term intake can lead to urinary system stones, bladder damage, and may induce cancer.
Carcinogenicity: The International Agency for Research on Cancer (IARC) has not made a clear classification, but animal experiments have shown a risk of cancer.