Polymethylene polyphenyl polyisocyanate manufacturers and suppliers

Polymethylene polyphenyl polyisocyanate suppliers

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

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]

Safety Information

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

Use

Polymethylene polyphenyl polyisocyanate reacts with water slowly forming heavy scum and liberating carbon dioxide gas. Dangerous pressure can build up if container is sealed. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. Such reactions in the absence of solvents often occur with explosive violence [Wischmeyer 1969].

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