), 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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Tianjin heowns Biochemical Technology Co. It’s used to mss plastics. Eco-Profiles of the European Plastics Industry. In case of accident or if you feel unwell, seek medical advice immediately show label where possible.
4,4′-Methylenediphenyldiisocyanate | C15H10N2O2 – PubChem
Persons developing sensitivity to isocyanates may have dangerous systemic reactions to extremely small exposures, including respiratory failure.
Meryer Shanghai Chemical Technology Co.
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Soap wash immediately Breathing: The 4,4′ isomer is most widely used, and is also known as 4,4′-diphenylmethane diisocyanate.
Methylene diphenyl diisocyanate
A skin and eye irritant. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. MDI is the least hazardous of the commonly available isocyanates but is not benign.
Important additional information about respirator selection.
Methylene bisphenyl isocyanate
When wet or contaminated Change: Methylene diphenyl diisocyanate11-68-8 often abbreviated as MDI, is an aromatic di isocyanate. Views Read Edit View history. Acids and bases initiate polymerization reactions in these materials. Reactions with amines, aldehydes, alcohols, alkali metals, ketones, mercaptans, strong oxidizers, hydrides, phenols, and peroxides can cause vigorous releases of heat.
Prevent skin contact Eyes: A diisocyanate consisting of diphenylmethane with two isocyanate groups at the 4and 4′-positions. Shanghai Hanhong Scientific Co.
Maya High Purity Chemicals. LC 50 median concentration. Human systemic effects by inhalation: Wear suitable protective clothing and gloves.
This page was last edited on 10 Augustat Then, these diamines are treated with phosgene to form a mixture of isocyanates, the isomer ratio being determined by the isomeric composition of the diamine. No account, fast registration. Distillation of the mixture gives a mixture of 10-168-8 polyisocyanates, known as polymeric MDIand a mixture of MDI isomers which has a low 2,4′ isomer content.
Raw materials And Preparation Products.
CDC – NIOSH Pocket Guide to Chemical Hazards – Methylene bisphenyl isocyanate
National Institute for Occupational Safety and Health. In 4,4′-MDI, the two isocyanate groups are equivalent but in 2,4′-MDI the two groups display highly differing reactivities. Well-known Reagent Company Product Information. Emergency or planned entry into unknown concentrations or IDLH conditions: Prevent eye contact Wash skin: