28574-90-5

Basic information

• Product Name: hexamethylene diisocyanate trimer
• Synonyms: Hdi trimer;Hexamethylene isocyanate trimer;Hexane, 1,6-diisocyanato-, trimer;Hmdi trimer;Isocyanic acid, hexamethylene ester, trimer
• CAS NO: 28574-90-5
• Molecular Formula: C24H36N6O6
• Molecular Weight: 504.57924
• Mol File: 28574-90-5.mol
• Article Data: 80

Chemical Properties

• Boiling Point: 255°Cat760mmHg
• Flash Point: 140°C
• Appearance: /
• Density: g/cm³
• Vapor Pressure: 0.0167mmHg at 25°C
• CAS DataBase Reference: hexamethylene diisocyanate trimer(CAS DataBase Reference)
• NIST Chemistry Reference: hexamethylene diisocyanate trimer(28574-90-5)
• EPA Substance Registry System: hexamethylene diisocyanate trimer(28574-90-5)

Safety Data

• Hazardous Substances Data: 28574-90-5(Hazardous Substances Data)

Usage

InChI:InChI=1/3C8H12N2O2/c3*11-7-9-5-3-1-2-4-6-10-8-12/h3*1-6H2

Upstream product

• 124-09-4 1,6-Hexanediamine 
• 75-44-5 phosgene 
• 60-29-7 diethyl ether 
• 124-38-9 carbon dioxide 
• 505-48-6 octane-1,8-dioic acid 
• 503-38-8 trichloromethyl chloroformate 
• 10027-07-3 suberoyl chloride 
• 4223-31-8 N,N′-hexanediyl bis-carbamic acid diphenyl ester 
• 6030-54-2 1,6-bis(methoxycarbonylamino)hexane 
• 98-13-5 Phenyltrichlorosilane 
• 1027096-12-3 N,N'-hexanediyl-bis-carbamic acid di(2,4-di-tert-butylphenyl) ester 
• 16644-34-1 N,N'-hexanediyl-bis-carbamic acid bis(3-methylbutyl) ester 
• 501647-11-6 N,N'-hexanediyl-bis-carbamic acid bis(2,6-dimethylphenyl) ester 
• 1027096-11-2 N,N'-hexanediyl-di(carbamic acid(2,4-di-tert-amylphenyl)ester) 

Downstream Products

• 103330-51-4 1,6-bis-{2-[4-(2-hydroxy-ethoxy)-phenoxy]-ethoxycarbonylamino}-hexane 
• 24536-91-2 N,N'-hexanediyl-di-peroxycarbamic acid bis-(1-methyl-1-phenyl-ethyl ester) 
• 15054-56-5 N',N'''-diphenyl-N,N''-hexanediyl-di-urea 
• 102600-73-7 1,1'-diphenyl-4,4'-hexanediyl-di semicarbazide 
• 22214-23-9 N',N'''-dioctadecyl-N,N''-hexanediyl-di-urea 
• 5132-94-5 N',N'''-dimethyl-N',N'''-diphenyl-N,N''-hexanediyl-di-urea 
• 3066-64-6 N,N'-hexanediyl-bis-carbamic acid dicyclohexyl ester 
• 7672-70-0 dodecanamide, N,N'-1,6-hexanediylbis- 
• 83654-05-1 1,6-bis-cyclohexylidenaminooxycarbonylamino-hexane 
• 73953-85-2 N',N'''-bis-benzenesulfonyl-N,N''-hexanediyl-di-urea 
• 26642-04-6 (6-isocyanato-hexyl)-urea 
• 2188-09-2 1,6-hexamethylene diurea 
• 56473-15-5 N,N'-(hexane-1,6-diyl)bis(hydrazinecarbothioamide) 
• 98115-68-5 1,1'-Hexamethylen-bis(o-carboxyphenylharnstoff) 

Relevant articles and documents

Method for preparing isocyanate with low hydrolytic chlorine content by gas phase method

The invention relates to a method for preparing isocyanate with low hydrolytic chlorine content by a gas phase method, which comprises the following steps of: carrying out phosgenation reaction on corresponding amine and stoichiometric excess phosgene in a reaction zone in the presence or absence of an inert medium; wherein the reaction conditions are selected such that at least the reaction components amine, isocyanate and phosgene are gaseous under these conditions, and feeding of at least one gas stream comprising amine and at least one gas stream comprising phosgene into the reaction zone, and introducing of a carbon dioxide stream in a quenching zone at the rear end of the reaction zone are carried out, and the molar content of the carbon dioxide stream is less than 60% of the molar weight of the phosgene stream, so that the isocyanate with low hydrolytic chlorine content can be obtained more easily, the product yield is improved, and the investment cost of the device is reduced.

Method for manufacturing pentamethylene diisocyanate

The present invention provides a method for manufacturing pentamethylene diisocyanate. The method for manufacturing pentamethylene diisocyanate of the present invention manufactures intermediates by using dialkyl carbonate. By thermally decomposing the intermediates under a specific polymerization inhibitor, the method can manufacture the pentamethylene diisocyanate having excellent purity in a high yield.

METHOD OF PREPARING DIISOCYANATE COMPOSITION AND OPTICAL LENS

In the embodiments, an aqueous hydrochloric acid solution and an organic solvent instead of hydrogen chloride gas and solid triphosgene instead of phosgene gas may be used in the process of preparing a diisocyanate from a diamine through a diamine hydrochloride. In addition, the embodiments provide processes for preparing a diisocyanate composition and an optical lens, which are excellent in yield and quality with mitigated environmental problems by controlling the total content of metals, cations, or anions in a diamine hydrochloride composition.