CAS No.108-78-1,Melamine Suppliers

Products Categories

Others (242)
Organic Chemicals (146)
Pharmaceutical (126)
Plant Extract (47)
Catalyst and Auxiliary (23)
Reagent (13)
Materials (8)
Basic Inorganic Chemicals (4)
Dyestuff and Pigment (4)
Food Additives (2)
Agrochemicals (1)
Adhesive and Sealant (1)

Basic Information

Molecular Structure:
CAS No.:	108-78-1
Name:	Melamine
Article Data:	230

Formula:	C₃H₆N₆
Molecular Weight:	126.121
Synonyms:	1,3,5-Triazine-2,4,6-triamine;2,4,6-Triamino-s-triazine;Cyanurotriamide;Cyanurotriamine;Cyanuramide;s-Triazine, 2,4,6-triamino-;s-Triazinetriamine;2,4,6-Triamino-1,3,5-triazine;
EINECS:	203-615-4
Density:	1.661 g/cm³
Melting Point:	354 °C
Boiling Point:	557.541 °C at 760 mmHg
Flash Point:	325.302 °C
Solubility:	3 g/L (20 °C) in water
Appearance:	white solid
Hazard Symbols:	Xi,Xn
Risk Codes:	43-44-20/21
Safety:	36/37
Transport Information:	3263
PSA:	116.73000
LogP:	0.36180

Synthetic route

: 57-13-6
urea

: 108-78-1
2,4,6-triamino-s-triazine

Conditions

Conditions	Yield
Stage #1: urea at 140 - 160℃; under 6000.48 Torr; Stage #2: With ammonia; γ-Al2O3 under 750.06 - 1500.12 Torr;	98%
In water Product distribution / selectivity;	88.5%
With ammonia High Pressure; 70 to 300 at; at 350°C; 120 min;	12.6%

: 19981-17-0, 20611-81-8, 123092-13-7, 17292-62-5
sodium cyanamide

A: 108-78-1
2,4,6-triamino-s-triazine

B: CH2N2*2CN2(2-)*4Na(1+)

Conditions

Conditions	Yield
In neat (no solvent) at 201.9℃; under 0.0008 Torr; for 18h;	A n/a B 98%

: 127099-85-8, 780722-26-1
dicyandiamide

: 7664-41-7
ammonia

: 108-78-1
2,4,6-triamino-s-triazine

Conditions

Conditions	Yield
High Pressure; heating of equiv. amts. of dicyanodiamide and liquid NH3 in autoclave at 160°C at a pressure of 200 at;	98%
In further solvent(s) heating in isobutanol;
High Pressure; using Sn-Mg alloy for absorption of heat of reactn.;	<59

: 87719-08-2
1,3,5-tribenzyl-2,4,6-triimino-1,3,5-triazine

: 1333-74-0
hydrogen

: 108-78-1
2,4,6-triamino-s-triazine

Conditions

Conditions	Yield
With trimethyleneglycol In ethanol redn.;	94%

: 420-04-2
CYANAMID

: 127099-85-8, 780722-26-1
N-Cyanoguanidine

: 108-78-1
2,4,6-triamino-s-triazine

Conditions

Conditions	Yield
With potassium hydroxide In water; dimethyl sulfoxide	93%

: 127099-85-8, 780722-26-1
dicyandiamide

: 108-78-1
2,4,6-triamino-s-triazine

Conditions

Conditions	Yield
With ammonia High Pressure; at degree of charge of autoclave = 100%; yield depends on degree of charge of autoclave as follows: 44, 52, 77, 88.5 and 92% at degree of charge of 8, 17, 33, 67 and 100% respectively;	92%
In further solvent(s) heating in benzylamine;	71%
normal and higher pressure, above melting point;

: 4418-61-5
5-aminotetrazole

: 127099-85-8, 780722-26-1
N-Cyanoguanidine

: 108-78-1
2,4,6-triamino-s-triazine

Conditions

Conditions	Yield
With hydrogenchloride In water at 100℃; for 24h; Time; Temperature;	53%

: ammonium thiocyanate

: 108-78-1
2,4,6-triamino-s-triazine

Conditions

Conditions	Yield
High Pressure; at 300°C; at a pressure of 40 at; 260 min;	36.7%

: 90802-01-0
2-amino-4,6-diureido-1,3,5-triazine

A: 108-78-1
2,4,6-triamino-s-triazine

B: 645-92-1
ammeline

Conditions

Conditions	Yield
With alkaline hydrolysis	A 33% B 9%

: 57-13-6
urea

A: ammonium carbonate

B: 108-78-1
2,4,6-triamino-s-triazine

Conditions

Conditions	Yield
thermal decompn. in closed ampul; at 400°C; 180 min;	A 25% B 18%

Raw Materials

5397-01-3

7732-18-5

74-90-8

884-43-5

Downstream Products

204-34-2

108-80-5

335-01-3

27114-96-1

1512-14-7

645-92-1

3085-95-8

Total:419 Page 1 of 12 1 2 3 4 5 6 …12 Next>>

Post a RFQ

Cas No.:

Product Name:

Quantity:

Email:

Company name:

Valid Period:

Detailed Requirements:

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

What can I do for you?
Get Best Price

Get Best Price for 108-78-1

Specification

Melamine has the IUPAC name of 1,3,5-Triazine-2,4,6-triamine. Melamine is white solid with the formula C₃H₆N₆. Melamine is soluble in water, glycol, glycerin and pyridine; slightly soluble in ethanol; insoluble in diethyl ether, benzene and carbon tetrachloride. In addition, Melamine is incompatible with strong oxidizing agents and strong acids. Melamine will sublime when gently heated. It has the CAS register number of 108-78-1 and EINECS register number of 203-615-4. What's more, you should protect Melamine from moisture, heat, ignition sources, and incompatible substances. On the other hand, Melamine should be protected from direct light.

Preparation: You can use urea to produce Melamine as the following reaction which is very common in most industrial manufacturers. This reaction can be carried out by either of two methods: catalyzed gas-phase production or high pressure liquid-phase production. Currently, China is the world's largest exporter of melamine, while its domestic consumption still grows by 10% per year.

6 (NH₂)₂CO → C₃H₆N₆ + 6 NH₃ + 3 CO₂

Melamine can also be prepared by dicyandiamide and ammonia in solvent of methanol at temperature of 200 °C. Per ton of product will consume 1180Kg dicyandiamide (98% ), 30 Kg liquid ammonia in this method.

H₄C₂N₄ + NH₃[CH₃OH] → C₃H₆N₆

Uses: Both the Melamine and formaldehyde can be used to produce melamine resin which is a very durable thermosetting plastic used in Formica, and Melamine foam, a polymeric cleaning product. As superplasticizer, Melamine can also enter the fabrication of Melamine poly-sulfonate for making high-resistance concrete. As fertilizer, Melamine had been envisaged for crops because of its high nitrogen content. However, Melamine is much more expensive to produce than other common nitrogen fertilizers, such as urea. Melamine and its salts are used as fire-retardant additives in paints, plastics and paper. Melamine is sometimes illegally added to food products in order to increase the apparent protein content.

Regulation: The United Nations' food standards body, Codex Alimentarius Commission, has set the maximum amount of Melamine allowed in powdered infant formula to 1 mg/kg and the amount of Melamine allowed in other foods and animal feed to 2.5 mg/kg. While not legally binding, the levels allow countries to ban importation of products with excessive levels of melamine.

When using the Melamine, you should be very cautious because it is irritant and harmful. Melamine is harmful by inhalation and in contact with skin. Melamine may cause sensitisation by skin contact. There will be a risk of explosion if heated Melamine under confinement. Whenever you will use Melamine, you should wear suitable protective clothing and gloves.

Descriptors computed from structure of Melamine:
(1)Canonical SMILES: C1(=NC(=NC(=N1)N)N)N
(2)InChI: InChI=1S/C3H6N6/c4-1-7-2(5)9-3(6)8-1/h(H6,4,5,6,7,8,9)
(3)InChIKey: JDSHMPZPIAZGSV-UHFFFAOYSA-N

Toxicity of Melamine:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
mouse	LD50	oral	3296mg/kg (3296mg/kg)		Toxicology and Applied Pharmacology. Vol. 72, Pg. 292, 1984.
mouse	LD50	unreported	1gm/kg (1000mg/kg)		Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 58(2), Pg. 14, 1993.
mouse	LDLo	intraperitoneal	800mg/kg (800mg/kg)	SENSE ORGANS AND SPECIAL SENSES: LACRIMATION: EYE BEHAVIORAL: TREMOR LUNGS, THORAX, OR RESPIRATION: CYANOSIS	"Patty's Industrial Hygiene and Toxicology," 3rd rev. ed., Clayton, G.D., and F.E. Clayton, eds., New York, John Wiley & Sons, Inc., 1978-82. Vol. 3 originally pub. in 1979; pub. as 2n rev. ed. in 1985.Vol. 2A, Pg. 2769, 1981.
rabbit	LD50	skin	> 1gm/kg (1000mg/kg)		Acute Toxicity Data. Journal of the American College of Toxicology, Part B. Vol. 1, Pg. 110, 1990.
rat	LC50	inhalation	3248mg/m³ (3248mg/m³)		Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 58(2), Pg. 14, 1993.
rat	LD50	oral	3161mg/kg (3161mg/kg)		Toxicology and Applied Pharmacology. Vol. 72, Pg. 292, 1984.
rat	LD50	unreported	6gm/kg (6000mg/kg)		Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 58(2), Pg. 14, 1993.
rat	LDLo	intraperitoneal	3200mg/kg (3200mg/kg)	SENSE ORGANS AND SPECIAL SENSES: LACRIMATION: EYE BEHAVIORAL: TREMOR LUNGS, THORAX, OR RESPIRATION: CYANOSIS	"Patty's Industrial Hygiene and Toxicology," 3rd rev. ed., Clayton, G.D., and F.E. Clayton, eds., New York, John Wiley & Sons, Inc., 1978-82. Vol. 3 originally pub. in 1979; pub. as 2n rev. ed. in 1985.Vol. 2A, Pg. 2769, 1981.