4,4-MDI Isocyanate

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4,4'-Diisocyanatodiphenylmethane CAS # 101-68-8

Molecular weight 250.25
Isocyanate, % 32
Equivalent weight 125
Toxicity Analysis method    OSHA air sampling method, See supplier for MSDS
International Chemical Safety Card

Properties
Crystalline Solid Liquid at 42C
Appearance Colorless solid Colorless liquid
Specific gravity @ 25C 1.2 1.19
Flash point, C (PMCC,C DJZ) 202 202
Viscosity, mPas -- 4.1
Bulk Density, lb/gal 10 9.93
Freezing Temperature, C 39 39
Recommended Storage Temperature 5C  (41F) max** 41-44C (107-111F)
Storage Time at Recommended Temperature (max) 3 months 3 weeks
Bayer Datasheet 

Regulatory Inventory
CAS REGISTRY NUMBER # 101-68-8 NAME : Benzene, 1,1'-methylenebis[4-isocyanato
TSCA USA Yes
DSL Canada Yes
EINECS Europe EINECS No. 202-966-0 Yes
ECL Korea ECL Serial No. KE-12080 Yes
ENCS Japan ENCS No. 4-118X Yes
AICS Australia Yes
The fact that a compound is not listed under a specific CAS # in a countries inventory does not mean this compound cannot be used, it can be an exempt compound or polymer which does not require listing, or it can be listed in a different category. Ask your supplier.
Other names: 
4,4'-methylenediphenyl diisocyanate 
Benzene, 1,1'-methylenebis[4-isocyanato
Diphenyl methane diisocyanate 
Diphenylmethane 4,4'-diisocyanate 
1,1'-Methylenebis[4-isocyanatobenzene]
4,4'-Bis(isocyanatophenyl)methane
4,4'-Diisocyanatodiphenylmethane
Commercial Products or generic terms used for products. For manufacturer see Isocyanate MFCT.
Mondur M RUBINATE 44
Some of these product names might not be commercial anymore, the product names still might be in old formulations

Last edited on:

July 06, 2006

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