101-68-8 MSDS PDF
), 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.
|Published (Last):||3 November 2018|
|PDF File Size:||4.1 Mb|
|ePub File Size:||2.92 Mb|
|Price:||Free* [*Free Regsitration Required]|
A diisocyanate consisting of diphenylmethane with two isocyanate groups at the 4and 4′-positions. Tianjin heowns Biochemical Technology Co.
Methylene diphenyl diisocyanate
Prevent eye contact Wash skin: Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and 101-8-8 presented on the website. Methylene bisphenyl isocyanate Minus Related 1011-68-8. The positions of the isocyanate groups influences their reactivity.
MDI reacts with polyols in the manufacture of polyurethane. The group at the 4-position is approximately four times more reactive than the group at the 2-position due to steric hindrance. It is a potentially violently reactive material towards water and other nucleophiles. Interactive image Interactive image.
Human systemic effects by inhalation: Click here for information on selection of N, R, or P filters. White to light-yellow, odorless flakes. LC 50 median concentration.
A Source Book and Practical Guide. When wet or contaminated Change: Prevent skin contact Eyes: See protection codes Skin: Important additional information about respirator selection.
Methylene diphenyl diisocyanatemost often abbreviated as MDI, is an aromatic di isocyanate.
CDC – NIOSH Pocket Guide to Chemical Hazards – Methylene bisphenyl isocyanate
Methylene bisphenyl isocyanate
Retrieved from ” https: Shanghai civi chemical technology co. Emergency or planned entry into unknown concentrations or IDLH conditions: Chemfun Medical Technology Shanghai Co. Further purification entails fractionation of the MDI isomer mixture.
1101-68-8 reactions of isocyanates with alcohols should be carried out in inert solvents. When heated to decomposition it emits toxic fumes of NOx and SOx. Any appropriate escape-type, self-contained breathing apparatus Important additional information about respirator selection. MDI is the least hazardous of the commonly available isocyanates but is not benign. Toluene diisocyanate Naphthalene diisocyanate Hexamethylene diisocyanate Isophorone diisocyanate.
Facebook Twitter Email Syndicate. 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.
4,4′-Methylenediphenyldiisocyanate | C15H10N2O2 – PubChem
Links with this icon indicate that you are leaving the CDC website. Hangzhou Yuhao Chemical Technology Co. The first step of the production of MDI is the reaction of aniline and formaldehydeusing hydrochloric acid as a catalyst to produce a mixture of diamine precursors, as well as their corresponding polyamines:.
Typical meds used are polyethylene adipate a polyester and poly tetramethylene ether glycol a polyether. A skin and eye irritant.
Shanghai Hanhong Scientific Co. However, it, like the other isocyanates, is an allergen and sensitizer. Such reactions in the absence of solvents often occur with explosive violence, [Wischmeyer ].
The major application of 4,4′-MDI is the production of rigid polyurethane. Irritating to eyes, respiratory system and skin. Raw materials And Preparation Products. It is the most produced diisocyanate, accounting for Meryer Shanghai Chemical 101-8-8 Co. Any appropriate escape-type, self-contained breathing apparatus. LD 50 median dose. Meds account, fast registration.