SoleChem

Melamine

CAS
108-78-1
EC
203-615-4
Mol. Weight
126.12 g/mol

Description

Melamine (CAS 108-78-1) is a nitrogen-rich triazine compound used primarily as a reactive monomer in the production of thermosetting resins and as a flame retardant additive across multiple industrial sectors.

Cyanuric triamide is an alternative designation occasionally encountered in technical literature, though the market universally trades under the melamine name. Its high nitrogen content makes it commercially valuable.

This chemical is essential for resin crosslinking and for suppressing combustion in polymer systems. The dominant use is in melamine-formaldehyde (MF) resin production, where it reacts with formaldehyde to form durable thermosets.

These resins are used in laminates, surface coatings, and wood-based panel adhesives. In coatings and adhesives, MF resins provide hard, scratch-resistant finishes for furniture, flooring, and automotive topcoats.

Textile and paper processors use melamine-based resins to impart wet strength, crease resistance, and dimensional stability to finished goods. It is a versatile component for high-performance industrial manufacturing.

As a flame retardant, melamine is compounded into polyurethane foams, epoxy systems, and engineering plastics where halogen-free fire performance is required. This ensures safety compliance in various construction materials.

Melamine is supplied as a white crystalline powder in bulk bags, supersacks, and 25 kg bags. Technical grade is the standard commercial form, with purity levels typically at 99.8% or higher for industrial use.

Specifications are assessed against established industrial standards depending on the end-use application. Our supply chain ensures consistent quality and reliable delivery for large-scale chemical manufacturing operations.

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Physical Properties

Melting Point <250 °C
Boiling Point 224.22°C (rough estimate)
Density 1.573 g/cm³ @ Temp: 14 °C
Flash Point >110°C
Appearance Melamine is a white crystalline solid
Color White
Form Fine Crystalline Powder
Water Solubility 3 g/L (20 ºC)
Vapor Pressure 66.65 hPa (315 °C)
Refractive Index 1.872
pH 7-8 (32g/l, H2O, 20℃)
Log P -1.22 at 20℃

Safety & Handling (Learn More)

Warning GHS08 GHS07
Hazard Statements
H227 Combustible liquid
H315 Causes skin irritation
H317 May cause an allergic skin reaction
H336 May cause drowsiness or dizziness
H351 Suspected of causing cancer
H361 Suspected of damaging fertility or the unborn child
H373 May causes damage to organs through prolonged or repeated exposure
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P272 Contaminated work clothing should not be allowed out of the workplace.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P318 IF exposed or concerned, get medical advice.
P319 Get medical advice/attention if you feel unwell.
P321 Specific treatment (see … on this label).
P403 Store in a well-ventilated place.
P405 Store locked up.
P501 Dispose of contents/container in accordance with local regulations.
P302+P352 IF ON SKIN: Wash with plenty of water.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P332+P317 Get emergency medical help.
P333+P317 Get emergency medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P370+P378 Use … for extinction.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.

Trade & Regulatory

HS Code 29336980
Storage Class 11 - Combustible Solids
WGK (Germany) 1

Documentation

Other Names

sym-triaminotriazine|s-triazinetriamine|cyanuric triamide|2,4,6-triamino-s-triazine|1,3,5-triazine-2,4,6-triamine|Theoharn|s-Triazine, 4,6-diamino-1,2-dihydro-2-imino-

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