Polymethylenepolyphenylpolyisocyanate , Ncocontent ~ 30%; viscosity ~ 200mpa · s (25 ° C) , 9016-87-9

Synonym(s):
PAPI 2027;PMDI;Polymethylene polyphenyl isocyanate

CAS NO.：9016-87-9

Empirical Formula: C8H7NO2

Molecular Weight: 149.147

MDL number: MFCD00072953

EINECS: 922-627-7

PRODUCT 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
• Flash point: >230 °F
• storage temp.: Refrigerator, Under inert atmosphere
• solubility: DMSO (Sparingly), Ethyl Acetate (Slightly), Methanol (Soluble)
• form: Oil
• color: Yellow to Orange
• Specific Activity: ~3.2isocyanate groups/molecule
• 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)

Description and Uses

Polymethylene polyphenyl polyisocyanate is a chain extender and a cross-linker that is used in the formation of a polyurethane system by forming amide linkages (?NCO).

Poly[methylene(polyp?henyl Isocyanate)?] is an engineering polymer used in the synthesis of highly resiliant polyurethane foams with flame retardancy.Environmental toxin on US EPA Toxic Release Inventory list (TRI) list.

Safety

• Symbol(GHS): GHS06,GHS08
• Signal word: Danger
• Hazard statements: H315-H317-H319-H330-H334-H335-H351-H373
• Precautionary statements: P202-P260-P280-P302+P352-P304+P340+P310-P305+P351+P338
• 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)