), Back Directory. [msds information] 1,1′-Methylenebis(4-isocyanatobenzene)( ).msds. Page 1. Page 2. •. •. •. ³. ³. ³. Page 3. ³. Page 4. ³. ³. ³. ³. ³. ³. ³. ³. ³. ³. Page 5. ≥. ≥. Page 6. METHYLENE BISPHENYL. ISOCYANATE. DOT Number: UN DOT Hazard Class: (Poison). NAERG Code: CAS Number: Hazard rating.

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Prevent eye contact Wash skin: Tianjin heowns Biochemical Technology Co. LD 50 median dose. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. Irritating to eyes, respiratory system and skin. November 29, Content 1011-68-8 Toluene diisocyanate Naphthalene diisocyanate Hexamethylene diisocyanate Isophorone diisocyanate.

CDC is not responsible for Section compliance accessibility on other federal or private website. National Institute for Occupational Safety and Health.

Such reactions in the absence of solvents often occur with explosive violence, [Wischmeyer ]. In 4,4′-MDI, the two isocyanate groups are equivalent but in mwds the two groups display highly differing reactivities. However, it, like the other isocyanates, is an allergen and sensitizer. Handling MDI requires strict engineering controls and personal protective equipment.

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CDC – NIOSH Pocket Guide to Chemical Hazards – Methylene bisphenyl isocyanate

It is the most produced diisocyanate, accounting for May cause sensitization by inhalation and skin contact. A diisocyanate consisting of diphenylmethane with two isocyanate groups at the 4and 4′-positions. Strong alkalis, acids, alcohol [Note: Any appropriate escape-type, self-contained breathing apparatus Important additional information about respirator selection. BeiJing Hwrk Chemicals Limted. Meryer Shanghai Chemical Technology Co. Acids and bases initiate polymerization reactions in these materials.

Well-known Reagent Company Product Information. From Wikipedia, the free encyclopedia. Some isocyanates react with water to form amines and liberate carbon dioxide.

Methylene diphenyl diisocyanate

MDI reacts with polyols in the manufacture of polyurethane. Soap wash immediately Breathing: In case of accident or if you feel unwell, seek medical advice immediately show label where possible. Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the 101-86-8 or the information and products presented on the website.

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LC 50 median concentration. White to light-yellow, odorless flakes.

4,4′-Methylenediphenyldiisocyanate | C15H10N2O2 – PubChem

Any appropriate escape-type, self-contained breathing apparatus. Reacts violently with alcohols. Important additional information about respirator selection.

LD Lo lowest published. When wet or contaminated Change: It’s used to make plastics. The positions of the isocyanate groups influences their reactivity.

You will msdw subject to the destination website’s privacy policy when you follow the link. Links with this icon indicate that you are leaving the CDC website. Lethal dose or concentration LDLC:. Facebook Twitter Email Syndicate. Other names Bis 4-isocyanatophenyl methane 1-Isocyanato[ 4-isocyanatophenyl methyl]benzene 4,4′-Methylene diphenyl diisocyanate 4,4′-Diphenylmethane diisocyanate Bayer Desmodur 44 Methylene bis 4-phenyl isocyanate Pure MDI.

MDI is the least hazardous of the commonly available isocyanates but is not benign.

Last modified: January 4, 2020