PRODUCTS

TOLUENE DIISOCYANATE

EC / List no.: 209-544-5
CAS no.: 584-84-9
Mol. formula: C9H6N2O2

Toluene diisocyanate (TDI) is an organic compound with the formula CH3C6H3(NCO)2.
Toluene diisocyanate (TDI) is produced in the pure state, but Toluene diisocyanate (TDI) is often marketed as 80/20 and 65/35 mixtures of the 2,4 and 2,6 isomers respectively.
Toluene diisocyanate (TDI) is produced on a large scale, accounting for 34.1% of the global isocyanate market in 2000, second only to MDI.
Approximately 1.4 billion kilograms were produced in 2000.
All isomers of Toluene diisocyanate (TDI) are colorless, although commercial samples can appear yellow.

Synthesis
Toluene diisocyanate (TDI) is prepared in three steps from toluene via dinitrotoluene and diaminotoluene (TDA).
Finally, the TDA is subjected to phosgenation, i.e., treatment with phosgene to form TDI.
This final step produces HCl as a byproduct and is a major source of industrial hydrochloric acid.

Distillation of the raw Toluene diisocyanate (TDI) mixture produces an 80:20 mixture of Toluene diisocyanate (TDI) and TDI, known as Toluene diisocyanate (TDI) (80/20). Differentiation or separation of the Toluene diisocyanate (TDI) (80/20) can be used to produce pure Toluene diisocyanate (TDI) and a 65:35 mixture of Toluene diisocyanate (TDI) and TDI, known as Toluene diisocyanate (TDI) (65/35).

Applications
The isocyanate functional groups in Toluene diisocyanate (TDI) react with hydroxyl groups to form carbamate (urethane) links.
The two isocyanate groups in Toluene diisocyanate (TDI) react at different rates: The 4-position is approximately four times more reactive than the 2-position.
Toluene diisocyanate (TDI) is a symmetrical molecule and thus has two isocyanate groups of similar reactivity, similar to the 2-position on TDI.
However, since both isocyanate groups are attached to the same aromatic ring, reaction of one isocyanate group will cause a change in the reactivity of the second isocyanate group.
Toluene diisocyanate (TDI) is also sometimes used in rocket propellants.

Toluene diisocyanate (TDI) is used in the production of rigid polyurethane foams with a high temperature stability.

Toluene diisocyanate exists in two isomeric forms (toluene diisocyanate and toluene diisocyanate) which have similar properties and effects.
Toluene diisocyanate is produced commercially as an 80:20 (toluene diisocyanate:toluene diisocyanate) mixture of the two isomers. At room temperature, the mixture is a clear, pale yellow liquid with a sharp, pungent odor.
Toluene diisocyanate (TDI) should be stored under refrigeration, away from light and moisture in a tightly closed container under an inert atmosphere.
Toluene diisocyanate is insoluble in water and miscible with most common organic solvents.

Toluene diisocyanate is used as a chemical intermediate in the production of polyurethane products such as foams, coatings, and elastomers.

This is the crude form of toluene diisocyanate (TDI) with an unspecified isomer ratio commercially available but not usually used.
Used to make polyurethane foams and coatings, elastomeric coating systems, adhesives, and sealants;
Occupational exposure occurs in adhesives production, insulation application, resin and lacquer production, chemical synthesis, paint spraying, polyurethane foam production, work with rubber, shipbuilding, textile processing, and wire coating

Industry Uses
• Adhesives and sealant chemicals
• Intermediates
• Solvents (which become part of product formulation or mixture)

Consumer Uses
• Adhesives and sealants
• Paints and coatings

Household & Commercial/Institutional Products
• Home Maintenance
• Personal Care

General Manufacturing Information
Industry Processing Sectors
• Adhesive manufacturing
• Furniture and related product manufacturing
• Paint and coating manufacturing
• Plastic material and resin manufacturing
• Transportation equipment manufacturing
• Wholesale and retail trade

Nature Properties:
colorless transparent or light yellow flammable liquid.
There is a strong irritating odor.
Boiling point 247 °c.
Melting point 19. 5~21.5 °c.
Flash point 127 °c.
The relative density was 1. 217.

With ethanol (decomposition), diethylene glycol ether, ether, acetone, carbon tetrachloride, benzene, chlorobenzene, kerosene, olive oil miscible.
Toluene diisocyanate (TDI) reacts with water to produce carbon dioxide, which can react with compounds containing active hydrogen.

Preparation Method
first, molten 2, 4-aminotoluene is dissolved in chlorobenzene and reacted with phosgene at a low temperature of 35 to 45 ° C., and then reacted with phosgene at a high temperature of 130 ° C.
Or lower.
After completion of the reaction, the hydrogen chloride and the remaining phosgene were driven out with nitrogen, Chlorobenzene was distilled out, and finally vacuum distillation was performed to obtain the finished product.
Can also be nitrotoluene by nitration, reduction, 2,4 A Two amino toluene, and then by phosgenation to obtain the finished product.
For other new methods, see phenyl isocyanate (C351).

Uses:
A linear polyurethane (polyurethane) resin is formed by reacting with a diol.
Can be used for the preparation of synthetic fibers, foam plastics, rubber, coatings and adhesives.
The dimer is a vulcanizing agent for the kneaded polyurethane rubber.
In addition to being used alone, a mixture of 80:20 and 65:35 with 2, 6-toluene diisocyanate can also be used for the production of rigid and flexible polyurethane foams and the like.

Description
Toluene diisocyanate (TDI), (OCN)2C6H3CH3, is a water-white to pale-yellow liquid with a sharp, pungent odor.
Toluene diisocyanate (TDI) reacts with water to release carbon dioxide.
The specific gravity is 1.22, which is heavier than water.
Toluene diisocyanate (TDI) is toxic by inhalation and ingestion, and is a strong irritant to skin and other tissue, particularly the eyes.
The TLV is 0.005 ppm in air, and the IDLH is 10 ppm.
The target organs are the respiratory system and the skin.
The four-digit UN identification number is 2078. The NFPA 704 designation is health 3, flammability 1, and reactivity 3.
The white section at the bottom of the diamond has a W with a slash through it, indicating water reactivity.
The primary uses of Toluene diisocyanate (TDI) are in the manufacture of polyurethane foams, elastomers, and coatings.

Chemical Properties
Toluene diisocyanate exists in two isomeric forms (toluene diisocyanate and toluene diisocyanate), which have similar properties and effects.
Toluene diisocyanate is produced commercially as an 80:20 (toluene diisocyanate:toluene diisocyanate) mixture of the two isomers. At room temperature, the mixture is a clear, pale yellow liquid with a sharp, pungent odor.
Toluene diisocyanate (TDI) should be stored under refrigeration, away from light and moisture in a tightly closed container in an inert atmosphere.
Toluene diisocyanate is insoluble in water and miscible with most common organic solvents.
Toluene diisocyanate is made by reacting toluene diamine with carbonyl chloride (phosgene).
Toluene diisocyanate is commonly used as a chemical intermediate in the production of polyurethane foams, elastomers, and coatings, paints, varnishes, wire enamels, sealants, adhesives, and binders.
Toluene diisocyanate (TDI) is also used as a cross-linking agent in the manufacture of nylon polymers.
Toluene diisocyanate is used as a chemical intermediate in the production of polyurethane products, such as foams, coatings, and elastomers.

Toluene diisocyanate (TDI) is an environmental contaminant belonging to the class of diisocyanates.
Toluene diisocyanate (TDI) is commercially used as a starting material for varnishes, paints, elastomers, polyurethane foams, wire enamels, etc.

Physical properties
Clear, colorless to light yellow liquid with a pungent, fruity odor. Odor threshold concentration in air is 2.14 ppm

Uses:
Toluene-diisocyanate is one of the mostextensively used isocyanates.
Toluene diisocyanate (TDI) is usedin the production of rigid and flexibleurethane foams, elastomers, and coatings.
In addition to its use as a pure compound, itis commercially available as a mixture of and isomers (80 : 20% and 65 : 35%ratios, respectively).

Occupational asthma is the principal cause of work-related respiratory disease in the industrial world.
Toluene-diisocyanate (TDI) is one of the most common respiratory sensitizers leading to occupational asthma.

Toluene diisocyanate (TDI) (toluene diisocyanate) is an important basic raw materials of polyurethane.
Toluene diisocyanate (TDI) is a mixture of Toluene diisocyanate (TDI) and Toluene diisocyanate (TDI) two kinds of isomers, including 3 kinds of commonly used grades:
TDI-80/20, TDI-100 and TDI-65/35.
Mainly used in the production of flexible polyurethane foam and polyurethane elastomer coatings, adhesives, etc..

In the manufacture of polyurethane foams and other elastomers.

What is toluene diisocyanate? Toluene diisocyanate is a colourless to pale yellow flammable liquid with a sharp pungent odour.
Toluene diisocyanate (TDI) exists in two forms; toluene diisocyanate and toluene diisocyanate.
The two different forms are known as isomers and both may be referred to as TDI.
They are man-made chemicals.

What is toluene diisocyanate used for?
Toluene diisocyanates are commercially available as pure toluene diisocyanate or as a mixture of the two forms.
They are mixed with other chemicals to form polyurethane products including foams, coatings, adhesives and flooring.
Polyurethane foams are used in various different items including furniture, mattresses and packaging.

Formula
C9H6N2O2
Formula Weight
174.16
Form
Liquid
Melting point
19.5-21.5°
Boiling Point
251°
Flash Point
132° (270°F)
Density
1.225
Refractive Index
1.567

Storage & Sensitivity
Moisture Sensitive.
Store under Nitrogen.
Ambient temperatures.

Solubility
Miscible with ether, acetone, benzene, carbontetrachloride and chlorobenzene.

Applications
Toluene diisocyanate is utilized in polyurethane foams and tank trucks.
Toluene diisocyanate (TDI) is also used in concrete sealers for aircraft, sealers and coatings in floor.
Toluene diisocyanate (TDI) is employed as a crosslinking agent for nylon.

Toluene diisocyanate (TDI) is used in the production of polyurethanes, primarily for flexible foam applications including bedding and furniture, carpet underlay, as well as packaging applications.
Toluene diisocyanate (TDI) is also utilized in the manufacture of coatings, sealants, adhesives, and elastomers.
In transportation applications, Toluene diisocyanate (TDI) is used to help make automobile parts lighter, leading to improvements in vehicle fuel efficiency and thus energy conservation.

A clear colorless to pale yellow liquid with a pungent odor.
Denser than water.
Vapors are heavier than air.
Vapors irritate the respiratory system.

About Toluene diisocyanate (TDI)
Helpful information
Toluene diisocyanate (TDI) is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 100 000 tonnes per annum.

Toluene diisocyanate (TDI) is used by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing.

Consumer Uses
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the routes by which Toluene diisocyanate (TDI) is most likely to be released to the environment.

Article service life
ECHA has no public registered data on the routes by which Toluene diisocyanate (TDI) is most likely to be released to the environment. ECHA has no public registered data indicating whether or into which articles the substance might have been processed.

Widespread uses by professional workers
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the types of manufacture using Toluene diisocyanate (TDI). Other release to the environment of Toluene diisocyanate (TDI) is likely to occur from: indoor use and outdoor use resulting in inclusion into or onto a materials (e.g. binding agent in paints and coatings or adhesives).
Formulation or re-packing
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. Release to the environment of Toluene diisocyanate (TDI) can occur from industrial use: formulation of mixtures, formulation in materials, for thermoplastic manufacture and in the production of articles.
Uses at industrial sites
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. Toluene diisocyanate (TDI) is used in the following areas: formulation of mixtures and/or re-packaging. Toluene diisocyanate (TDI) is used for the manufacture of: chemicals. Release to the environment of Toluene diisocyanate (TDI) can occur from industrial use: formulation of mixtures, for thermoplastic manufacture, formulation in materials and in the production of articles.

Manufacture
Release to the environment of Toluene diisocyanate (TDI) can occur from industrial use: manufacturing of the substance, formulation of mixtures and for thermoplastic manufacture.

IUPAC NAMES:
1,3-diisocyanato-4-methylbenzene
diisocyanate-1-methyl-benzene
2,4-diisocyanato-1-methyl-benzene
2,4-Diisocyanato-1-methylbenzene
2,4-diisocyanato-1-methylbenzene
2,4-Toluene diisocyanate
2,4-toluene-diisocyanate
4-Methyl-m-phenylendiisocyanat;2,6-Diisocyanat-toluol
4-Methyl-m-phenylene diisocyanate
4-methyl-m-phenylene diisocyanate
4-methyl-m-phenylene diisocyanate
4-methyl-m-phenylene diisocyanate toluene-2,6-di-isocyanate
4-methyl-m-phenylene diisocyanate;
Benzene, 2,4-diisocyanato-1-methyl-
methyl-m-phenylene diisocyanate
Reaction mass of 2-methyl-m-phenylene diisocyanate and Tolylene-2,4-diisocyanate
TOLUENE-2,4-DI-ISOCYANATE
toluene-2,4-di-isocyanate
toluene-2,6-di-isocyanate
Tolylene 2,4-Diisocyanate

SYNONYMS:
584-84-9
2,4-Diisocyanato-1-methylbenzene
TOLUENE DIISOCYANATE
2,4-Toluene diisocyanate
2,4-Diisocyanatotoluene
Tolylene-2,4-diisocyanate
Toluene-2,4-diisocyanate
4-Methyl-m-phenylene diisocyanate
TOLUENE 2,4-DIISOCYANATE
2,4-Tolylene diisocyanate
Tolylene diisocyanate
Benzene, 2,4-diisocyanato-1-methyl-
2,4-TDI
Toluylene-2,4-diisocyanate
Hylene tlc
Di-iso-cyanatoluene
TDI
Hylene T
Diisocyanat-toluol
Mondur TD
Toluen-disocianato
Mondur TDS
Tuluylendiisocyanat
2,4-Toluenediisocyanate
Desmodur T80
Tolueen-diisocyanaat
Tolylene 2,4-diisocyanate
Toluilenodwuizocyjanian
Mondur TD-80
Cresorcinol diisocyanate
Isocyanic acid, 4-methyl-m-phenylene ester
Tolyene 2,4-diisocyanate
Di-isocyanate de toluylene
RCRA waste number U223
NCI-C50533
NSC 4791
TDI-80
UNII-17X7AFZ1GH
4-Methyl-1,3-phenylene diisocyanate
toluene-2,4-diyl diisocyanate
4-Methyl-m-phenylene isocyanate
CHEBI:53556
17X7AFZ1GH
1321-38-6
CHEMBL1086446
DTXSID7026156
diisocyanato-toluene
Benzene, 2,4-diisocyanato-1-methyl-, homopolymer
Isocyanic acid, methylphenylene ester
MFCD00002011
26006-20-2
DSSTox_CID_1361
Nacconate IOO
WLN: OCNR B1 ENCO
DSSTox_RID_78038
DSSTox_GSID_26156
Benzene,4-diisocyanato-1-methyl-
Toluene diisocyanate, commercial grade (2,4 (80%)- and 2,6 (20%)-)
Diisocyanat-toluol [German]
Tuluylendiisocyanat [German]
NSC 56759
Tolueen-diisocyanaat [Dutch]
Toluen-disocianato [Italian]
CAS-584-84-9
Toluene, 2,4-diisocyanato-
CCRIS 3742
HSDB 874
Toluilenodwuizocyjanian [Polish]
Di-isocyanate de toluylene [French]
EINECS 209-544-5
BRN 0744602
Hylene tcpa
AI3-15101
Hylene trf
Hylene tm
tolylenediisocyanate
2,4-diisocyanato-1-methyl-benzene
7373-19-5
Nacconate 100
Hylene tm-65
2,4-Toluene diisocyanate, homopolymer
TDI, Diisocyanatoluene
TDI, Diisocyanotoluene
Diisocyanatomethylbenzene
2,4-tolylenediisocyanate
Rubinate TDI 80/20
Epitope ID:11513
4-methyl-m-phenylene ester
EC 209-544-5
Benzene, diisocyanatomethyl-
DSSTox_RID_77374
DSSTox_GSID_24341
SCHEMBL15384
Toluene Diisocyanate 80/20
2,4-TDI, analytical standard
2,4-Diisocyanato-1-methylbenzene [Toluenediisocyanates]
NSC4791
Tolylene-2,4-diisocyanate, 95%
Toluene-2,4-diisocyanate, tech. 80%
2,4-/2,6-Toluene diisocyanate mixture
Poly(tolylene 2,4-diisocyanate) solution
2,4- & 2,6-TOLUENE DIISOCYANATE
CAS-26471-62-5
T0263
A831895
Q415183
Tolylene-2,4-diisocyanate, technical grade, 80%
UNII-9MTX1PK3QO component DVKJHBMWWAPEIU-UHFFFAOYSA-N
Toluene 2,4-diisocyanate, purum, for electron microscopy, >=98.0% (GC)
1,3-Diisocyanato-4-Methylbenzene
2,4-Toluylene Diisocyana
4-Methyl-m-phenylene Diisocyanate Toluene-2,4-diisocyanate 4-Methyl-1,3-phenylene Diisocyanate 2,4-Diisocyanatotoluene
Tolylene-2,4-diisocyanate 95%
Tolylene-2,4-diisocyanate technical grade, 80%
BASF LUPRANATE T80
Toluene-2,4-diisocyanate, technical, 80%, main impurity toluene-2,6-diisocyanate
Tolylene 2,4-Diisocyanate(monomer)
CRESORCINOL DIISOCYANATE
2,4-toluene
4-methyl-meta-phenylenediisocyanate
4-Methyl-phenylene diisocyanate
4-Methyl-phenylene isocyanate
4-methyl-phenylenediisocyanate
4-methyl-phenyleneisocyanate
ai3-15101
benzene,2,4-diisocyanato-1-methyl
benzene,2,4-diisocyanato-1-methyl-
Desmodur T80
desmodurt80
Di-isocyanate de toluylene
di-isocyanatedetoluylene
di-isocyanatedetoluylene(french)
Di-iso-cyanatoluene
Diisocyanat-toluol
Hylene T
Hylene tcpa
Hylene tlc
Hylene tm
Hylene tm-65
Hylene trf
hylenetlc
Isocyanic acid, 4-methyl-m-phenylene ester
Isocyanic acid, methylphenylene ester
isocyanicacid,4-methyl-m-phenyleneester
meta-toluenediisocyanate
meta-Tolylene diisocyanate
Mondur td
Mondur td-80
Mondur tds
mondurtds
m-Tolyenediisocyanate
m-tolylenediisocyanate
Nacconate 100
Nacconate ioo
nacconateioo
NCI-C50533
Niax tdi
TDI LIQUID
TOLUENE DIISOCYNATE 80/20 ( TDI 80/20 )
TOLYLENE-2,4-DIISOCYANATE FOR ELECTRON M ICROSCOPY
TOLYLENE 2,4-DIISOCYANATE, TECH., 80%
TOLUENE 2,4 DIISOCYANATE, 1000MG, NEAT
TOLUONE DIISOCYANATE
Toluene-2,4-diisocyanate,80%
TOLYLENE-2,4-DIISOCYANATE,TECHNICAL
2,4-Diisocyanatotoluene, 4-Methyl-m-phenylene diisocyanate, Toluene 2,4-diisocyanate, Tolylene 2,4-diisocyanate
2,4-Diisocyanatotoluene, 4-Methyl-1,3-phenylene diisocyanate, 4-Methyl-m-phenylene diisocyanate, TDI