Identification of Tolylene-2,4-diisocyanate

Tolylene-2,4-diisocyanate

1.Chemical Properties

Name:Tolylene-2,4-diisocyanate (Related Reference)
EINECS:209-544-5
Molecular Formula:C9H6N2O2
CAS Registry Number:584-84-9
Appearance:Water white to pale yellow liquid or crystals with a sweet, fruity, pungent odor. Darkens on exposure to sunlight.
Molecular Weight:174.16
Density:1.225
Boiling Point:115-120℃ (10 mmHg)
Melting Point:12.5-13.5℃
Flash Point:127℃
Storage Temperature:2-8°C
Refractive index:1.567-1.569
Solubility:reacts
Stability:Stable, but decomposes in the presence of moisture. Also heat and light sensitive. Readily polymerizes in contact with base. Reacts with compounds containing active hydrogen. Incompatible with strong oxidizing agents. Corrodes some copper and aluminium alloys.
Usage:Chemical intermediate.

2.Physical Properties

*Tolylene-2,4-diisocyanateyanate is a colorless, yellow, or dark liquid with a sharp, pungent odor.
The odor threshod for Tolylene-2,4-diisocyanateyanate is 0.17 parts per million (ppm).

*The chemical formula for Tolylene-2,4-diisocyanateyanate is C9H6N2O2, and the molecular weight is 174.15 g/mol.

*The vapor pressure for Tolylene-2,4-diisocyanateyanate is 0.01 mm Hg at 80 °C, and it has a log octanol/water partition coefficient (log Kow) of 0 to 1 (estimated).

*Commercial toluene diisocyanate is comprised of approximately 80% Tolylene-2,4-diisocyanateyanate and 20% toluene 2,6-diisocyanate.