Polymeric MDI CAS#9016-87-9
Key Industrial Chemical – Polymethylene polyphenyl polyisocyanate (PAPI) is a crucial chemical intermediate widely used in industrial applications.
Versatile Composition – It is a mixture of diphenylmethane diisocyanate (MDI) and its higher molecular weight homologues, offering diverse reactivity and functionality.
Liquid Form at Room Temperature – Exists as a dark brown to yellow oily liquid, making it easy to handle and process in manufacturing.
Distinct Odor Characteristics – Has a weak or pungent odor, which can help in monitoring and safety handling during industrial use.
Polymethylene polyphenyl polyisocyanate Chemical Properties
| Boiling point | 392 °C5 mm Hg |
| density | 1.2 g/mL at 25 °C(lit.) |
| vapor density | 8.6 (vs air) |
| refractive index | n20/D 1.634 |
| Fp | >230 °F |
| storage temp. | Refrigerator, Under inert atmosphere |
| solubility | DMSO (Sparingly), Ethyl Acetate (Slightly), Methanol (Soluble) |
| form | Oil |
| color | Yellow to Orange |
| Stability: | Stable. Incompatible with strong oxidizing agents, alcohols. May decompose in moist air, or on contact with water. |
| InChI | InChI=1S/C7H5NO.CH2O/c9-6-8-7-4-2-1-3-5-7;1-2/h1-5H;1H2 |
| InChIKey | JTEOXXUIKUHXLD-UHFFFAOYSA-N |
| SMILES | O=C=NC1C([H])=C([H])C([H])=C([H])C=1[H].O=C([H])[H] |
| IARC | 3 (Vol. 19, Sup 7) 1987 |
| EPA Substance Registry System | Polymeric diphenylmethane diisocyanate (9016-87-9) |
| Hazard Codes | Xn,T+,T,F |
| Risk Statements | 20-36/37/38-42-42/43-26-22-39/23/24/25-23/24/25-11-20/21/22 |
| Safety Statements | 26-28-38-45-36/37-23-16-7-36 |
| WGK Germany | 3 |
| RTECS | TR0350000 |
| Hazardous Substances Data | 9016-87-9(Hazardous Substances Data) |
Product Application of Polymethylene Polyphenyl Polyisocyanate CAS#9016-87-9
Polymethylene polyphenyl polyisocyanate is primarily used in the production of polyurethane materials. It finds wide application in industries such as construction, automotive, and electrical, serving as insulation materials, mattresses, and other related products.
