4,4'-Diphenylmethan...

4,4'-Diphenylmethane diisocyanate,101-68-8

4,4'-Diphenylmethane diisocyanate,101-68-8

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101-68-8 4,4'-Diphenylmethane diisocyanate 101-68-8

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4,4'-Diphenylmethane diisocyanate Basic information
Product Name: 4,4'-Diphenylmethane diisocyanate
Synonyms: 1,1’-methylenebis(4-isocyanato)-benzene;1,1’-methylenebis(4-isocyanato-benzen;1,1’-methylenebis(4-isocyanatobenzene);1,1’-methylenebis[4-isocyanato-benzen;1,1’-methylenebis[4-isocyanato-Benzene;1,1’-methylenebis[4-isocyanotobenzene];1,1-Methylenebis4-isocyanatobenzene;1-Isocyanato-4-(4-isocyanatobenzyl)benzene
CAS: 101-68-8
MF: C15H10N2O2
MW: 250.25
EINECS: 202-966-0
Product Categories: Diphenylmethanes (for High-Performance Polymer Research);Functional Materials;Reagent for High-Performance Polymer Research;Alphabetic;M;META - METH
Mol File: 101-68-8.mol
 
4,4'-Diphenylmethane diisocyanate Chemical Properties
mp 38-44 °C
bp 392 °C
density 1.19
Fp 196 °C
storage temp. Refrigerator
Water Solubility decomposes
FreezingPoint 37℃
Sensitive Moisture Sensitive/Lachrymatory
BRN 797662
Stability: Stable. Combustible. Incompatible with strong oxidizing agents. Reacts violently with alcohols.
CAS DataBase Reference 101-68-8(CAS DataBase Reference)
NIST Chemistry Reference Benzene, 1,1'-methylenebis[4-isocyanato-(101-68-8)
EPA Substance Registry System Benzene, 1,1'-methylenebis[4-isocyanato- (101-68-8)
Safety Information
Hazard Codes Xn,T,C
Risk Statements 42/43-36/37/38-20-48/20-40
Safety Statements 45-36/37-23
RIDADR 2206
RTECS NQ9350000
Hazard Note Toxic/Corrosive/Lachrymatory/Moisture Sensitive
HazardClass 6.1
PackingGroup II
HS Code 29291090
Hazardous Substances Data 101-68-8(Hazardous Substances Data)
4,4'-Diphenylmethane diisocyanate Usage And Synthesis
Chemical Properties white to light yellow flakes or crystals
Usage Diphenyl methane diisocyanate (MDI) is widely used in polyurethane coatings, this product is made of polyurethane foam used as a warm (cold), building materials, vehicle, ship parts; masterwork can made car Block, buffer, synthetic leather, non plastic polyurethane, polyurethane elastic fiber, no plastic elastic fibers, films, adhesives.
General Description Diphenylmethane-4,4-diisocyanate is a light yellow colored solid. 4,4'-Diphenylmethane diisocyanate is not soluble in water. 4,4'-Diphenylmethane diisocyanate may be toxic by ingestion, inhalation, or skin absorption. If in a solution 4,4'-Diphenylmethane diisocyanate may or may not burn depending on the nature of the material and/or the solvent. It's used to make plastics.
Air & Water Reactions 4,4'-Diphenylmethane diisocyanate is not soluble in water.
Reactivity Profile Isocyanates and thioisocyanates, such as 4,4'-Diphenylmethane diisocyanate, are incompatible with many classes of compounds, reacting exothermically to release toxic gases. Reactions with amines, aldehydes, alcohols, alkali metals, ketones, mercaptans, strong oxidizers, hydrides, phenols, and peroxides can cause vigorous releases of heat. Acids and bases initiate polymerization reactions in these materials. Some isocyanates react with water to form amines and liberate carbon dioxide. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. Such reactions in the absence of solvents often occur with explosive violence, [Wischmeyer(1969)].
Health Hazard Breathlessness, chest discomfort, and reduced pulmonary function.
4,4'-Diphenylmethane diisocyanate Preparation Products And Raw materials
Preparation Products Polyurethane foams
Raw materials Sodium hydroxide-->Nitric acid-->Chlorine-->Formaldehyde-->Aniline-->CARBON MONOXIDE

 

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