26006-20-2

Basic information

• Product Name: POLY(TOLYLENE 2,4-DIISOCYANATE)
• Synonyms: POLY(TOLYLENE 2,4-DIISOCYANATE);2,4-diisocyanato-1-methyl-benzenhomopolymer;2,4-Toluenediisocyanate,homopolymer;Benzene,2,4-diisocyanato-1-methyl-,homopolymer;Poly(tolylene 2,4-diisocyanate) solution;POLY(TOLYLENE 2,4-DIISOCYANATE), 50 WT. % SOLUTION IN BUTYL ACETATE;2,4-DISOCYANATO-1-METHYLBENZENE, HOMOPLOYMER;toluene-2,4-diisocyanate homopolymer
• CAS NO: 26006-20-2
• Molecular Formula: C9H6N2O2
• Molecular Weight: 174.15614
• Product Categories: Polymers;Engineering Polymers;Polymer Science;Polyurethanes and Urethane Precursors
• Mol File: 26006-20-2.mol
• Article Data: 65

Chemical Properties

• Boiling Point: 386.8°Cat760mmHg
• Flash Point: 88 °F
• Appearance: /
• Density: 1.09 g/mL at 25 °C
• Refractive Index: n20/D 1.501
• CAS DataBase Reference: POLY(TOLYLENE 2,4-DIISOCYANATE)(CAS DataBase Reference)
• NIST Chemistry Reference: POLY(TOLYLENE 2,4-DIISOCYANATE)(26006-20-2)
• EPA Substance Registry System: POLY(TOLYLENE 2,4-DIISOCYANATE)(26006-20-2)

Safety Data

• Hazard Codes: T,Xi
• Statements: 45-10-23/24/25-42/43-67-66-41
• Safety Statements: 53-16-23-36/37/39-45-39-26
• RIDADR: UN 1866 3/PG 3
• Hazardous Substances Data: 26006-20-2(Hazardous Substances Data)

Usage

InChI:InChI=1/C9H6N2O2/c1-7-2-3-8(10-5-12)4-9(7)11-6-13/h2-4H,1H3

Upstream product

• 201230-82-2 carbon monoxide 
• 121-14-2 2,4-dinitrotoluene 
• 6935-99-5 2,4-bis(methoxycarbonylamino)toluene 
• 95-80-7 4-methylbenzene-1,3-diamine 
• 71412-40-3 N,N'-(4-methyl-m-phenylene)-bis-carbamic acid diisobutyl ester 
• 124-38-9 carbon dioxide 
• 823-40-5 2,6-toluenediamine 
• 1266555-09-2 toluene-2,4-di(carbamic acid (2-phenylphenyl) ester) 
• 1266555-03-6 toluene-2,4-di(carbamic acid (p-heptylphenyl) ester) 
• 52820-05-0 toluene-2,4-di(carbamic acid (p-dodecylphenyl) ester) 
• 1267646-18-3 toluene-2,4-di(carbamic acid (3-methoxy-3-methylbutyl) ester) 
• 61058-78-4 toluene-2,4-di(carbamic acid (2-ethylhexyl) ester) 
• 52820-06-1 toluene-2,4-di(carbamic acid (4-cumylphenyl) ester) 
• 1267645-90-8 toluene-2,4-di(carbamic acid (3,5-dimethoxyphenyl) ester) 

Downstream Products

• 93427-59-9 3,3'-(4-methyl-m-phenylene)-bis-oxazolidin-2-one 
• 2131-75-1 N,N'-bis-(aziridine-1-carbonyl)-4-methyl-m-phenylenediamine 
• 102544-18-3 N,N'-(4-methyl-m-phenylene)-bis-carbamic acid bis-(2-piperidino-ethyl ester) 
• 57718-04-4 N,N'-(4-methyl-m-phenylene)-bis-carbamic acid bis-(2-morpholino-ethyl ester) 
• 7402-96-2 N,N'-bis-(2,2-dimethyl-aziridine-1-carbonyl)-4-methyl-m-phenylenediamine 
• 116598-51-7 2,4-bis-{N'-[2-(diethyl-methyl-ammonio)-ethyl]-ureido}-toluene; diiodide 
• 18751-25-2 N,N'-(4-methyl-m-phenylene)-bis-carbamic acid bis-triethylsilanyl ester 
• 124115-69-1 N,N'-(4-methyl-m-phenylene)-bis-carbamic acid bis-[3-(4-methyl-morpholinium-4-yl)-propylester]; diiodide 
• 122214-87-3 N,N'-(4-methyl-m-phenylene)-bis-carbamic acid bis-[3-(1-methyl-piperidinium-1-yl)-propylester]; diiodide 
• 10097-06-0 2,4-tolylene diurea 
• 59007-10-2 bis-(3-isocyanato-4-methyl-phenyl)-carbodiimide 
• 7450-62-6 2,4-bis-(ethoxycarbonylamino)toluene 
• 76842-52-9 linalyl 3-isocyanato-4-methylphenylcarbamate 
• 70763-76-7 n-octyl 3-isocyanato-4-methylphenylcarbamate 

Relevant articles and documents

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Study on the synthesis of toluene-2,4-diisocyanate via amine and carbonyl fluoride

Abstract We presented recently a synthesis of toluene-2,4-diisocyanate (TDI) as one of the nine examples to verify the feasibility of an industrial appealing two-step method for isocyanates synthesis via amines and carbonyl fluoride (COF2). Because more investigation was considered to be necessary for future industrial application, the two-step synthesis processes of TDI were studied in detail herein. The total yield of TDI increased 5.6% under the optimized experimental conditions. The influence of the excess COF2 left in the reaction system was studied carefully according to a one-pot method.

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.

METHOD FOR PRODUCING ISOCYANATES

The invention relates to a method for producing an isocyanate, wherein a carbamate or thiolcarbomate is converted, in the presence of a catalyst, with separation of an alcohol or thioalcohol, at a temperature of at least 150° C., to the corresponding isocyanate, wherein a compound of the general formula (X)(Y)(Z—H) is used as a catalyst, in particular characterized in that the compound has both a proton donor function and a proton acceptor function. In the catalysts according to the invention, a separable proton is bound to a heteroatom, which is more electronegative than carbon. Said heteroatom is either identical to Z or a component thereof. In the catalysts according to the invention, there is additionally a proton acceptor function which is either identical to X or a component thereof. According to the invention, the proton donator and proton acceptor function are connected to each other by the bridge Y.