TODI Introduction
Introduction to T.O.D.I. (CAS No. 91-97-4)
1. common name:
4.4′-Diisocyanato-3.3′-dimethyl-1.1′-biphenyl
or 3.3′-Dimethylbiohenyl-4.4′-diyl diisocyanate
or 0-Tolidine diisocyanate
2.molecular formula and Chemical Structure
C16H12N2O2
3.Molecular weight :264.286
4.Purity : ≥ 99.5%
5.Physical and Chemical Properties
(1) Appearance : White solid at room temperature
(2) Odor: Odorless
(3) Melting Point： 71.7 ℃ (70-72)
(4) Boiling Point : 195-197 ℃ (5mmHg, or 667 Pa)
(5) Specific Gravity： 1.197 (80 ℃)
(6) Solubility: Insoluble in water and slowly hydrolyzed by water, Soluble in Acetone, Carbon Tetrachloride, Kerosene, Benzene, Chlorobenzene, Nitrobenzene
(7) Flash Point 218 ℃ (Cleveland open cup)
(8) NCO content：31.78% — 2 x 42(-NCO)/264.286 x100
(9) Package: 20 Kg metal pail.
(10) Storage ：Keep away from ignition sources and heat. Store in a tightly closed container . Keep cool and dry place.
