| MELAMINE | ||
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PRODUCT IDENTIFICATION |
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| CAS NO. | 108-78-1 |
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| EINECS NO. | C3N3(NH2)3 | |
| FORMULA | 203-615-4 | |
| MOL WT. | 126.12 | |
| H.S. CODE | 2933.61 | |
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TOXICITY |
Oral, rat LD50: 3161 mg/kg | |
| SYNONYMS | Cymel; 1,3,5-Triazine-2,4,6-triamine; cyanuramide; | |
| cyanuric triamide; triaminotriazine; 2,4,6-triamino-1,3,5-triazine; cyanurotriamide; Teoharn; Theoharn; Virset 656-4; cyanurotriamine; 2,4,6-triamino-s-triazine; s-triaminotriazine; 2,4,6-triamino sym-triazine; 1,3,5-triazine-2,4,6(1H,3H,5H)triimine; | ||
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DERIVATION |
Methylformate, Condensed water | |
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CLASSIFICATION |
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GENERAL DESCRIPTION |
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MELAMINE also called Cyanuramide, or Triaminotriazine, a colourless, is a crystalline substance belonging to the family of heterocyclic organic compounds, which are used principally as a starting material for the manufacture of synthetic resins. Melamine is manufactured by heating dicyandiamide under pressure. Its most important reaction is the forming resinous compounds of high molecular weight, with formaldehyde. These resins form under the influence of heat but, once formed, are insoluble and infusible. Usually formulated with fillers and pigments, they are molded into dishes, containers, utensils, handles, and the like or used as laminating agents or coating materials for wood, paper, and textiles. Formica and Melmac are well-known trade names for products based on melamine resins. Butylated melamine resins, made by incorporating butyl alcohol into the melamine-formaldehyde reaction mixture, are fluids used as ingredients of paints and varnishes. |
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PHYSICAL AND CHEMICAL PROPERTIES |
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| PHYSICAL STATE |
white, crystalline powder. | |
| MELTING POINT | 345 C (Decomposes) | |
| BOILING POINT |
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| SPECIFIC GRAVITY | 1.573 | |
| SOLUBILITY IN WATER | slightly | |
| pH |
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| VAPOR DENSITY | 4.3 | |
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AUTOIGNITION |
500 C | |
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REFRACTIVE INDEX |
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NFPA RATINGS |
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| FLASH POINT |
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| STABILITY | Stable under ordinary conditions | |
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APPLICATIONS |
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| Melamine-formaldehyde resins , Lamination , Adhesive agents, Tableware, Flame retardant, Polyurethane foams, Paints, coating, paper, plastics, Pigments, Thermosetting plastics | ||
| SALES SPECIFICATION | ||
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APPEARANCE |
white powder | |
| MELAMINE |
99.9% min | |
| MOISTURE |
0.05% max | |
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ASH |
0.01% max | |
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pH |
7.5 ~ 9.5 (5% sol.) | |
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COLOR, APHA |
30max | |
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PARTICLE DISTRIBUTION |
90%(50 max) 100%(500 max) | |
| TRANSPORTATION | ||
| PACKING | 25kgs in bag and big bag | |
| HAZARD CLASS | ||
| UN NO. | ||
| GENERAL DESCRIPTION OF TRIAZINE COMPOUNDS |
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| Triazine is the chemical species of six-membered heterocyclic ring compound with three nitrogens replacing carbon-hydrogen units in the benzene ring structure. The names of the three isomers indicate which of the carbon-hydrogen units on the benzene ring position of the molecule have been replaced by nitrogens, called 1,2,3-triazine, 1,2,4-triazine, and 1,3,5-triazine respectively. Symmetrical 1,3,5-triazine is the common. Triazines are prepared from 2-azidocyclopropene through thermal rearrangement (1,2,3-triazine), from 1,2-dicarbonyl compound with amidrazone by condensation reaction (1,2,4-triazine) and from cyanic acid amide by trimerization (1,3,5-triazine). Pyridine is the aromatic nitrogen heterocycle compound having only one nitrogen, and diazines are with 2 nitrogen atoms and tetrazines are with 4 nitrogen atoms on the benzene ring system. Triazines are weak base. Triazines have much weaker resonance energy than benzene, so nucleophilic substitution is preferred than electrophilic substitution. Triazines are basic structure of herbicides, examples are amitole (CAS #: 61-82-5), atrazine (CAS #: 1912-24-9), cyanazine (CAS #: 21725-46-2), simazine (CAS #: 122-34-9), trietazine (CAS #: 1912-26-1). Large volume of triazines are used in the manufacture of resin modifiers such as melamine and benzoguanamine. Melamine (1,3,5-Triazine-2,4,6-triamine) is reacted with formaldehyde to from a very durable thermoset resin. Benzoguanamine (2,4-Diamino-6-phenyl-1,3,5-triazine) is used to increase thermoset properties of alkyd, acrylic and formaldehyde resins. Triazines are also useful as chromophore groups in colorants and Chlorine attached in Triazine compounds undergo nucleophilic substitution reactions well with with hydroxyl groups in cellulose fibres. Some triazine family compounds are used in pharmaceutical industry as coupling agent for the synthesis of peptide in solid phase as well as solution and as side chain of antibiotics. Triazine compounds are used in formulating bactericide and fungicide. They are used as preservatives in oil field applications. They are used as disinfectant, industrial deodorant and biocide in water treatment. They are used as a bleaching agents. | ||
| GENERAL DESCRIPTION OF FLAME RETARDANT AGENT | ||
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Flame Retardant
are substances that can be
chemically inserted into the polymer molecule
or be physically blended in polymers
after polymerization to suppress, reduce, delay
or modify the propagation of a flame
through a plastic materials. There are several classes of flame retardants;
Halogenated Hydrocarbons (Chlorine and
Bromine containing compounds and reactive
flame retardants), Inorganic flame retardants
( Boron compounds, Antimony oxides,
Aluminium Hydroxide, molybdenum compounds,
zinc and magnesium oxides ), Phosphorous
containing compounds (Organic phosphate
esters, phosphates, halogenated phosphorus
compounds and inorganic phosphorus containing
salts).
Class of Flame Retardants
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