chemistry, isocyanate is the functional group with the formula R−N=C=O. Organic compounds that contain an isocyanate group are referred to as isocyanates. An...
38 KB (3,846 words) - 00:42, 18 March 2024
isocyanate (MIC) is an organic compound with the molecular formula CH3NCO. Synonyms are isocyanatomethane and methyl carbylamine. Methyl isocyanate is...
22 KB (2,147 words) - 14:13, 23 February 2024
Polyurethane (redirect from Isocyanate resin)
in 2016. A polyurethane is typically produced by reacting a polymeric isocyanate with a polyol. Since a polyurethane contains two types of monomers, which...
53 KB (5,902 words) - 06:16, 3 May 2024
Phenyl isocyanate is an organic compound typically abbreviated PhNCO. The molecule consists of a phenyl ring attached to the isocyanate functional group...
4 KB (252 words) - 22:15, 23 February 2024
Methylene diphenyl diisocyanate (redirect from Methylene bisphenyl isocyanate)
diisocyanate. Three isomers are common, varying by the positions of the isocyanate groups around the rings: 2,2′-MDI, 2,4′-MDI, and 4,4′-MDI. The 4,4′ isomer...
10 KB (777 words) - 06:55, 1 November 2023
Chlorosulfonyl isocyanate is the chemical compound ClSO2NCO, known as CSI. This compound is a versatile reagent in organic synthesis. CSI is prepared by...
5 KB (376 words) - 04:48, 25 April 2024
Blocked isocyanates are organic compounds that have their isocyanate functionality chemically blocked to control reactivity. They are the product of an...
11 KB (1,164 words) - 01:11, 30 September 2023
Polymethylene polyphenylene isocyanate (PPI), is a polyurea-based polymer derived from isocyanate monomers that is used in some glues, aerosol foams,...
3 KB (182 words) - 06:39, 10 September 2023
Methacryloyloxyethyl isocyanate is an extremely poisonous liquid which can be fatal if inhaled, absorbed through skin, or consumed orally. To a lesser...
1 KB (50 words) - 16:05, 4 June 2021
nitrogen followed by rearrangement of the carbonyl and nitrogen to give an isocyanate intermediate. The reaction can form a wide range of products, including...
8 KB (770 words) - 06:11, 2 August 2023
extenders – the amine-isocyanate nucleophilic addition reaction does not require catalysts. Polyureas also form when isocyanate resins come into contact...
14 KB (1,708 words) - 02:15, 27 February 2024
Isophorone diisocyanate (IPDI) is an organic compound in the class known as isocyanates. More specifically, it is an aliphatic diisocyanate. It is produced in...
8 KB (647 words) - 12:53, 26 December 2023
small towns around the plant were exposed to the highly toxic gas methyl isocyanate (MIC). Estimates vary on the death toll, with the official number of immediate...
131 KB (14,367 words) - 09:46, 7 May 2024
that is derived from the reaction product of an isocyanate component and an amine component. The isocyanate can be aromatic or aliphatic in nature. It can...
9 KB (965 words) - 17:26, 27 April 2024
chemical in order to react with methyl isocyanate and alpha naphthol. In 1970, there was an issue with the methyl isocyanate unit being built (MIC) in Bhopal...
6 KB (550 words) - 19:39, 9 April 2024
the thermal decomposition of an acyl azide to an isocyanate with loss of nitrogen gas. The isocyanate then undergoes attack by a variety of nucleophiles...
16 KB (1,746 words) - 09:24, 4 October 2023
a hydroxamate ester to an isocyanate. Typically O-acyl, sulfonyl, or phosphoryl O-derivative are employed. The isocyanate can be used further to generate...
4 KB (339 words) - 11:01, 21 June 2023
include: urea-formaldehyde (OSB type 1, nonstructural, nonwaterproof); isocyanate-based glue (or PMDI poly-methylene diphenyl diisocyanate based) in inner...
10 KB (1,183 words) - 17:03, 13 January 2024
Carbaryl is often inexpensively produced by direct reaction of methyl isocyanate with 1-naphthol. C10H7OH + CH3NCO → C10H7OC(O)NHCH3 Alternatively, 1-naphthol...
11 KB (814 words) - 05:48, 21 April 2024
Toluene diisocyanate (category Isocyanates)
It 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...
9 KB (732 words) - 02:56, 9 January 2024
or cyanate esters. The cyanate functional group is distinct from the isocyanate functional group, −N=C=O; the fulminate functional group, −O−N+≡C−; and...
11 KB (1,291 words) - 04:35, 15 April 2024
prepared in 1849 by Charles-Adolphe Wurtz via the hydrolysis of methyl isocyanate and related compounds. An example of this process includes the use of...
13 KB (992 words) - 14:15, 15 April 2024
required, such as automotive coatings, the isocyanate component also tends to be UV resistant and hence isocyanate oligomers or prepolymers based on Isophorone...
23 KB (2,158 words) - 07:11, 24 November 2023
bisphenol A to form polycarbonates. Phosgenation of diamines gives di-isocyanates, like toluene diisocyanate (TDI), methylene diphenyl diisocyanate (MDI)...
30 KB (3,103 words) - 19:04, 9 May 2024
molecule is now much bigger, less of the isocyanate is needed on a weight for weight basis. The isocyanate is often the most expensive part of the system...
8 KB (781 words) - 23:30, 1 March 2024
India, in which more than 3000 people died after highly toxic methyl isocyanate was released at a Union Carbide pesticides factory. The release happened...
7 KB (730 words) - 02:38, 21 January 2024
formed by reaction of an alcohol with an isocyanate.[Requires Citation] Commonly, urethanes made by a non-isocyanate route are called carbamates.[Requires...
30 KB (3,270 words) - 21:48, 1 May 2024
which is a reactive intermediate (a tri-isocyanate isocyanurate compound). Remaining MDI and the tri-isocyanate react with polyol to form a complex...
12 KB (1,392 words) - 11:58, 12 January 2024
Chemical Company) leaked a mixture of deadly gases composed mainly of methyl isocyanate, leading to the worst industrial disaster in history. The Bhopal disaster...
102 KB (8,897 words) - 00:58, 21 May 2024
formula [CH3(CH2)10]2CO. With sodium azide, it reacts to give undecyl isocyanate via a Curtius rearrangement of the acyl azide. "Lauroyl chloride". pubchem...
3 KB (219 words) - 18:00, 10 December 2023