What is Melamine CAS 108-78-1?

Melamine CAS 108-78-1, also called 1,3,5-triazine-2,4,6-triamine or cyanurotriamide, is a nitrogen-rich heterocyclic organic base. It has the molecular formula C3H6N6 and a molecular weight of 126.12 g/mol.

How is Melamine converted into melamine-formaldehyde resin?

Melamine is condensed with formaldehyde under controlled conditions to form a crosslinkable melamine-formaldehyde prepolymer that cures into a thermosetting resin. The result is a hard, heat-resistant network used in decorative laminates, adhesives, molding compounds and coatings.

Why is Melamine important in high-pressure laminates and wood adhesives?

Melamine-formaldehyde resins made from this monomer provide surface hardness, scratch resistance, heat stability and resistance to many chemicals. These properties make melamine especially useful for decorative high-pressure laminates, wood panels, tableware and industrial coatings.

How does Melamine contribute to flame retardancy?

Melamine has about 66% nitrogen by weight. When a melamine-containing material is heated or burned, the resin decomposes and releases nitrogen-containing gases that dilute oxygen and help suppress flame propagation in foams, coatings and other polymer systems.

What are the key specifications of high-purity Melamine CAS 108-78-1?

This industrial high-purity grade specifies melamine content of at least 99.8%, moisture not more than 0.1%, ash not more than 0.03%, Hazen color not more than 20, and kaolin turbidity not more than 20. The pH of a 10% suspension is typically 7.5-9.5, and the powder melts or decomposes above 350 C.

How should Melamine powder be stored and handled?

Melamine should be kept dry in tightly closed containers because moisture pickup can affect resin formulation and powder flow. Avoid generating airborne dust and keep the material away from open flames or ignition sources, since melamine dust can form an explosive dust-air mixture.

Melamine CAS 108-78-1

Melamine, CAS 108-78-1, is a high-purity nitrogen-rich heterocyclic base supplied for melamine-formaldehyde resins, laminates, wood adhesives, molding compounds, coatings and flame-retardant systems. Confirm the required grade and purity, then request a quotation with COA/TDS/SDS for bulk supply.

CAS: 108-78-1
Synonyms: 1,3,5-Triazine-2,4,6-triamine, Cyanurotriamide, 2,4,6-Triamino-s-triazine, Melamine resin monomer
Einecs: 203-615-4
Molecular Formula: C₃H₆N₆
Grade: Industrial Grade (High Purity)
Package: 25kg, 500kg, or 1000kg PP/PE Woven Bag

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Product Description

Melamine, CAS 108-78-1, also called 1,3,5-triazine-2,4,6-triamine, is a nitrogen-rich heterocyclic organic base.

Synonyms: 1,3,5-Triazine-2,4,6-triamine; Cyanurotriamide; 2,4,6-Triamino-s-triazine; Melamine resin monomer.

CAS: 108-78-1.

It is a white crystalline powder with no impurities and has a density of about 1.573 g/cm³.

It has a melamine content of not less than 99.8% and melts or decomposes above 350 °C.

It has moisture of not more than 0.1%, ash of not more than 0.03%, Hazen color of not more than 20 and kaolin turbidity of not more than 20.

It is slightly soluble in water and insoluble in benzene and ether.

It reacts with formaldehyde to form durable melamine-formaldehyde thermosetting resins.

It provides surface hardness, scratch resistance, heat stability and chemical resistance in high-pressure laminates and wood panels.

It is used in melamine-urea-formaldehyde waterproof adhesives for plywood, particleboard and MDF.

It is used in molding compounds for heat-resistant tableware and in cross-linking baked enamels and automotive coatings.

It is used to make sulfonated melamine-formaldehyde superplasticizers for high-strength concrete.

Its nitrogen-rich structure releases nitrogen-containing gases when heated, helping suppress flame propagation.

Confirm appearance, melamine content, moisture, ash, Hazen color, turbidity, pH, melting point, density, solubility and packaging.

Store in a cool, dry, well-ventilated warehouse away from moisture, oxidants and strong acids.

Keep bags sealed when not in use, as high humidity can cause caking or clumping of the powder.

Confirm packaging with the requested quantity and destination requirements.

The page is an RFQ entry point and does not state stock, price, MOQ or fixed lead time.

For an RFQ, state the intended use, required grade and purity, quantity, packaging, destination and document needs.

FAQ - Technical & Supply Chain

Q:
What is Melamine CAS 108-78-1?

A: Melamine CAS 108-78-1, also called 1,3,5-triazine-2,4,6-triamine or cyanurotriamide, is a nitrogen-rich heterocyclic organic base. It has the molecular formula C3H6N6 and a molecular weight of 126.12 g/mol.
Q:
How is Melamine converted into melamine-formaldehyde resin?

A: Melamine is condensed with formaldehyde under controlled conditions to form a crosslinkable melamine-formaldehyde prepolymer that cures into a thermosetting resin. The result is a hard, heat-resistant network used in decorative laminates, adhesives, molding compounds and coatings.
Q:
Why is Melamine important in high-pressure laminates and wood adhesives?

A: Melamine-formaldehyde resins made from this monomer provide surface hardness, scratch resistance, heat stability and resistance to many chemicals. These properties make melamine especially useful for decorative high-pressure laminates, wood panels, tableware and industrial coatings.
Q:
How does Melamine contribute to flame retardancy?

A: Melamine has about 66% nitrogen by weight. When a melamine-containing material is heated or burned, the resin decomposes and releases nitrogen-containing gases that dilute oxygen and help suppress flame propagation in foams, coatings and other polymer systems.
Q:
What are the key specifications of high-purity Melamine CAS 108-78-1?

A: This industrial high-purity grade specifies melamine content of at least 99.8%, moisture not more than 0.1%, ash not more than 0.03%, Hazen color not more than 20, and kaolin turbidity not more than 20. The pH of a 10% suspension is typically 7.5-9.5, and the powder melts or decomposes above 350 C.
Q:
How should Melamine powder be stored and handled?

A: Melamine should be kept dry in tightly closed containers because moisture pickup can affect resin formulation and powder flow. Avoid generating airborne dust and keep the material away from open flames or ignition sources, since melamine dust can form an explosive dust-air mixture.

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