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Melamine

Melamine

Basic Information

CAS No.: 108-78-1
Molecular Formula: C3H6N6
Molecular Weight: 126.12

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Product Details

Melamine is a white crystalline powder, heat-resistant and flame-retardant, with high nitrogen content. It is mainly used in the production of melamine-formaldehyde resins, laminates, coatings, flame retardants, paper treatment, and leather chemicals.


Chemical Properties

PropertyValue

Melting point

>300 °C (lit.)

Boiling point

224.22°C (rough estimate)

Density

1.573

Bulk density

800kg/m3

Vapor pressure

66.65 hPa (315 °C)

Refractive index

1.872

Fp

>110°C

Storage temp.

No restrictions.

Solubility

Water: soluble25mg/mL, clear to slightly hazy, colorless

Pka

5(at 25℃)

Form

Fine Crystalline Powder

Color

White

PH

7-8 (32g/l, H2O, 20℃)

Water Solubility

3 g/L (20 ºC)

Merck

14,5811

BRN

124341

Stability:

Stable. Incompatible with strong acids, strong oxidizing agents. Nonflammable.

InChIKey

JDSHMPZPIAZGSV-UHFFFAOYSA-N

LogP

-1.22 at 20℃

CAS DataBase Reference

108-78-1(CAS DataBase Reference)

IARC

2B (Vol. Sup 7, 73, 119) 2019

NIST Chemistry Reference

1,3,5-Triazine-2,4,6-triamine(108-78-1)

EPA Substance Registry System

Melamine (108-78-1)


Safety Information

PropertyValue
Hazard symbolsXi, Xn
Hazard class codes43-44-20/21
Safety descriptions36/37
UN dangerous goods number3263
WGK Germany1
RTECS numberOS0700000
Autoignition temperature>600 °C
TSCATSCA listed
Packing groupIII
HS code29336980
Storage class11 - Combustible solids
Hazard class (category)Carcinogenicity, Category 2
Reproductive toxicity, Category 2
Specific target organ toxicity — repeated exposure, Category 2
Hazardous substances data108-78-1 (Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: 3161 mg/kg
LD50 dermal Rabbit: >1000 mg/kg


Product Usage

Melamine is a versatile nitrogen-rich organic compound primarily used in the production of melamine-formaldehyde (MF) resins. Its most widespread application is in the laminate industry, where these resins are used to create durable, heat-resistant surfaces for furniture, flooring, and kitchen countertops. In the plasticware sector, melamine is molded into high-quality, break-resistant dinnerware and kitchen utensils. Furthermore, it serves as a key component in flame retardants and intumescent coatings, providing essential fire protection for building materials. Additionally, specialized melamine foams are prized in the cleaning and insulation industries for their exceptional abrasive cleaning properties and sound-absorbing capabilities.

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