Toluene-2,6-diisocyanate
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Toluene-2,6-diisocyanate | |||||||||||||||
other names |
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Molecular formula | C 9 H 6 N 2 O 2 | |||||||||||||||
Brief description |
colorless to yellowish liquid with a pungent odor |
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External identifiers / databases | ||||||||||||||||
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properties | ||||||||||||||||
Molar mass | 174.16 g mol −1 | |||||||||||||||
Physical state |
liquid |
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density |
1.23 g cm −3 |
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Melting point |
18.3 ° C |
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boiling point |
129-133 ° C (24 mbar) |
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Vapor pressure |
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solubility | ||||||||||||||||
Refractive index |
1.571 (20 ° C) |
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safety instructions | ||||||||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C |
Toluene-2,6-diisocyanate is a chemical compound from the group of organic isocyanates . Technical toluene diisocyanate is a mixture of toluene-2,4-diisocyanate and toluene-2,6-diisocyanate.
properties
Toluene-2,6-diisocyanate is a colorless to yellowish, not very volatile, very difficult to ignite liquid with a pungent odor. It is soluble in water with hydrolysis . The connection can e.g. B. polymerize violently on contact with bases .
use
Toluene-2,6-diisocyanate is used in the manufacture of photographic materials, textile auxiliaries, lubricants, oil field chemicals, explosives and rocket propellants. It is an intermediate product in the manufacture of polyurethanes , polyethers and polyesters .
safety instructions
Toluene-2,6-diisocyanate is classified as a category 3A carcinogen.
Web links
Individual evidence
- ↑ a b c d e f g h i j k l Entry on toluene-2,6-diisocyanate in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .
- ↑ Entry on 2-fluoropyridine at TCI Europe, accessed on June 27, 2011.
- ↑ Data sheet toluene-2,6-diisocyanate from Sigma-Aldrich , accessed on November 8, 2010 ( PDF ).
- ↑ Entry on 2-methyl-m-phenylene diisocyanate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
- ↑ Environmental Health Criteria (EHC) for Toluene Diisocyanates , accessed November 19, 2014.