melamine

1. a colourless crystalline compound used in making synthetic resins; 2,4,6-triamino-1,3,5-triazine. Formula: C₃H₆N₆

2. melamine resin or a material made from this resin

Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

melamine

[′mel·ə‚mēn]

(organic chemistry)

C₃H₆N₄ A white crystalline compound that is slightly soluble in water, melts at 354°C and is a cyclic trimer of cyanamide; used to make melamine resins and in tanning of leather.

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Melamine

2,4,6-triamino-5-triazine; colorless crystals. Melting point, 354°C (with decomposition). It is virtually insoluble in cold water and most organic solvents. Melamine is a base, which interacts with acids to form salts (for example, C₃H₆N₆HCl) that decompose upon heating. It is prepared from dicyandiamide, (NH₂— C≡N)₂, at a temperature of 180°-500° C and a pressure of 4–20 meganewtons per sq m (40–200 kilograms-force per sq cm).

Melamine is used in the manufacture of melamine-formaldehyde resins (plastics, adhesives, and varnishes), ion-exchange resins, tanning agents, and hexachloromelamine (which is used in the preparation of dyes and herbicides).

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References in periodicals archive

However, to identify melamine in the samples, they were analyzed by immunosorbent assay (ELISA).

Detection of Cyanuric Acid and Melamine in Infant Formula Powders by Mid-FTIR Spectroscopy and Multivariate Analysis

Furfural (25 mmol), malononitrile (25 mmol) and ethanol (2.5 mL) were mixed thoroughly, and then 0.25 mmol of melamine was added to a 50 mL round-bottomed flask.

Ultrasound Promoted Synthesis of Arylmethylenemalonitriles Catalyzed by Melamine

"TarHong has seen overall growth in the melamine market with increased acceptance of melamine as a viable everyday material," said Jodi Riviera, vice president.

Mighty melamine: fashion-forward designs look more like ceramic

The home center where we bought our melamine panels sells small bags of screws--labeled "melamine screws"--that are packaged with white plastic caps to hide the screw heads.

Custom clutter buster

BASF S.E., Hexion Inc., Ineos Melamines, Tembec Inc., Allnex Belgium S.A., Cytec Industries Inc., Georgia-Pacific LLC, AkzoNobel Chemicals, and Momentive Specialty Chemicals, among others, are some of the major players in the North America melamine formaldehyde market.

North America Melamine Formaldehyde Market - Analysis & Forecast to 2019 - New Market Report

The OD data was computed by using BioTek(R) Gen5 software (BioTek(R), USA) for melamine quantification.

Melamine Residues in Pet Food Preliminary Report

The main use of melamine is as a reactive intermediate for the manufacturing of MF resins.

Synthesis and thermal degradation studies of melamine formaldehyde resins

terrigena in the presence of melamine showed that cyanuric acid was produced within an hour, peaked within 10 hours, and stayed steady thereafter.

Gut bacteria and melamine toxicity

A continuous low dose of melamine exposure may be associated with urinary system stones in children and adults, the study authors noted.

Hot food may release melamine from bowls

Total melamine levels in urine for 12 hours after eating the soup was 8.35 micrograms when the participants ate out of the melamine bowls versus about 1.3 micrograms when they ate out of ceramic bowls.

Eating hot food in plastic plates could trigger kidney stones

Results showed that gold/silver nano alloys have higher catalytic activity than nanoparticles made of pure gold or silver, and they can be used in the precise measurement of melamine at low concentrations in powder milk for infants.

Iranian Scientists Fabricate Melamine Nanosensor

As melamine content was increased at the same formaldehyde/urea (F/U) molar ratio, the solids content of the resin increased.

Effects of melamine on the properties of medium-density fiberboard fabricated with urea-based resins