1,3-diisocyanatomethyl-Benzene (1,3-diisocyanatomethyl-Benzene)

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1,3-diisocyanatomethyl-Benzene

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Toluene Diisocyanate
2,4-TDI and 2,6-TDI 80%/20% mixture
2,4-TDI and 2,6-TDI 65%/35% mixture
Benzene, 1,?3-?diisocyanatomethyl-
Isocyanic acid, methyl-m-phenylene ester
1,3-Diisocyanatomethylbenzene
Cosmonate TDI
Diisocyanatotoluene
Isocyanic acid, methylphenylene ester
Methyl-m-phenylene isocyanate
Methylphenylene isocyanate
T 100
T 65
TDI
TDI 65
TDI 80
TDI 80/20
Tolylene diisocyanate
Tolylene isocyanate

+Expand -Stow

26471-62-5

C9H6N2O2

174.156

2929101000

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Product Description

Insoluble in water; soluble in acetone, ethyl acetate and toluene. It is easy to react with compounds containing active hydrogen atoms: amines, water, alcohols, acids, and bases, especially with sodium hydroxide and tertiary amines that are difficult to control and emit a lot of heat. Reaction with water to produce carbon dioxide is one of the key reactions in the manufacturing process of polyurethane foam; damp should be avoided. The polymerization reaction speed is very slow at room temperature, but it can self-polymerize to form dimer when heated to above 45°C or in the presence of a catalyst. Can react with strong oxidants. Heat, open flames, sparks will catch fire. Heat decomposition releases cyanide and nitrogen oxides.

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Nature Description

Density 1.1±0.1g/m3
Boiling point 248.4±0.0°C at 760 mmHg
Melting point 19.5-21.5°C
Molecular formula C9H6N2O2
Molecular weight 174.156
Flash point 110.5±29.3°C
Accurate quality 174.042923
PSA 58.86000
LogP 3.47
Appearance characteristics transparent colorless to light yellow liquid
Vapor pressure 0.0±0.5 mmHg at 25°C
Refractive index 1.559

Product Applications

Used as raw materials for manufacturing polyurethane flexible foam plastics, coatings, rubber and adhesives;

Production method

. It is prepared by the Action of 2,4-diaminotoluene and phosgene. First, dissolve solid diaminotoluene in benzene chloride, heat up to 70℃ under stirring to get diaminotoluene chlorobenzene solution, put the recovered light gasification oxidation benzene into a low-temperature phosgene pot, and add a certain liquid phosgene, add the prepared diaminotoluene solution Dropwise under stirring, conduct light gasification at 40℃, and then put the low-temperature light gasification materials into a high-temperature pot for high-temperature light gasification, and ventilate when warming up, about 4 hours, the reaction is generally carried out at 120 ~ 125℃; After the reaction is completed, it is obtained by using nitrogen gas, distillation and distillation.