88357-62-4

Basic information

• Product Name: 1,6-diisocyanatohexane
• CAS NO: 88357-62-4
• Molecular Formula: C8H12N2O2
• Molecular Weight: 168.19
• Mol File: 88357-62-4.mol

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 1,6-diisocyanatohexane(CAS DataBase Reference)
• NIST Chemistry Reference: 1,6-diisocyanatohexane(88357-62-4)
• EPA Substance Registry System: 1,6-diisocyanatohexane(88357-62-4)

Safety Data

• Hazardous Substances Data: 88357-62-4(Hazardous Substances Data)

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) 
• 102600-73-7 1,1'-diphenyl-4,4'-hexanediyl-di semicarbazide 
• 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 
• 56473-15-5 N,N'-(hexane-1,6-diyl)bis(hydrazinecarbothioamide) 
• 98115-68-5 1,1'-Hexamethylen-bis(o-carboxyphenylharnstoff) 
• 6123-89-3 N',N',N''',N'''-tetraphenyl-N,N''-hexanediyl-di-urea 
• 42101-54-2 C₃₂H₅₈N₄O₂ 
• 56360-70-4 C₂₂H₃₂N₆O₂ 
• 16644-46-5 N-(6-Isocyanatohexyl)-benzylurethan 
• 16644-54-5 N,N'-bis(tert-butoxycarbonyl)-1,6-hexanediamine 

Relevant articles and documents

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 FOR PRODUCING CARBAMATE AND METHOD FOR PRODUCING ISOCYANATE

The present invention provides a method for producing a carbamate that includes a step (1) and a step (2) described below: (1) a step of producing a compound (A) having a urea linkage, using an organic primary amine having at least one primary amino group per molecule and at least one compound selected from among carbon dioxide and carbonic acid derivatives, at a temperature lower than the thermal dissociation temperature of the urea linkage; and(2) a step of reacting the compound (A) with a carbonate ester to produce a carbamate.

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 OF PREPARING DIISOCYANATE COMPOSITION

In the embodiments, an aqueous hydrochloric acid solution 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 size of the diamine hydrochloride composition, the b* value according to the CIE color coordinate of the diamine hydrochloride composition, or the content of water in the diamine hydrochloride composition within a specific range.

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.

Method for preparing low-chlorinated impurity content isocyanate based on salt formation light gasification (by machine translation)

The invention provides a method for preparing low-chlorinated impurity content isocyanate based on a salt-formation light gasification method. The proportion of the salt particle size distribution obtained by the salt formation reaction in the average particle size ±30% range is 70% or more, the average residence time without stirring is less than 60 min, and the product obtained by the method has lower chlorinated impurity content. (by machine translation)

ISOCYANATE PRODUCTION METHOD

An isocyanate production method according to the present invention is a method in which an isocyanate is produced by subjecting a carbamate to thermal decomposition, and includes: a step of preparing a mixture liquid containing the carbamate, an inactive solvent and a polyisocyanate compound; a step of conducting a thermal decomposition reaction of the carbamate by continuously introducing the mixture liquid into a thermal decomposition reactor; a step of collecting a low-boiling decomposition product by continuously extracting the low-boiling decomposition product in a gaseous state from the reactor, the low-boiling decomposition product having a boiling point lower than the polyisocyanate compound; and a step of collecting a high-boiling component by continuously extracting, from the reactor, a liquid phase component which is not collected in a gaseous state at the step of collecting the low-boiling decomposition product.

PROCESS FOR THE PREPARATION OF ISOCYANATES

The invention relates to a process for the preparation of aliphatic, cycloaliphatic or araliphatic isocyanates by reacting at least one primary organic amine with a stoichiometric excess of phosgene in the gas phase, comprising the steps a) reaction of the primary organic amine with an excess of phosgene in the gas phase and quenching the process product with a liquid comprising an inert aromatic solvent to obtain a liquid stream containing the isocyanate and a gas stream containing HCl and phosgene, b) separation of the gas stream containing HCl and phosgene obtained in step a) into a gas stream containing HCl and a liquid stream containing phosgene, c) partial vaporization of the liquid stream containing phosgene obtained in step b) to produce a gas stream containing phosgene, d) the gas stream containing phosgene obtained in step c) is at least partially recycled into the reaction in step a), and wherein the gas stream containing phosgene obtained in step c) contains 0.5 wt% or less of the sum of benzene, chlorobenzene and dichlorobenzene. The invention additionally relates to an isocyanate composition.

Process for the preperation of Aliphatic Diisocyanates

The present invention relates to a process for preparing aliphatic diisocyanate, and more particularly, to a process for preparing aliphatic diisocyanate in which aliphatic dicarbamate is thermo-decomposed in the presence of a catalyst of a tin compound, and by-products having a high boiling point produced using a reaction system composed of a heat exchanger for removing a high boiling point material and a centrifuge is efficiently removed, thereby improving the yield of diisocyanate.

Method for Preparing Aliphatic Diisocyanates

The present invention relates to a method for preparing aliphatic diisocyanates, and more specifically, to a method for preparing high-yield aliphatic diisocyanates, suppressing production of polymer by-products compared to a method for manufacturing aliphatic diisocyanates by pyrolyzing aliphatic dicarbamates without catalysts, by pyrolyzing aliphatic dicarbamate in the presence of vanadia catalysts.