Toluene Diisocyanate T80 toluene diisocyanate (TDI) is an 80% - 20% mixture of the 2,4 and 2,6 isomers of toluene diisocyanate. This product is used in the preparation of polyurethane foams, prepolymers and elastomers.
|
Specification Limits |
Type I |
Type II |
Method(STI) |
|
Assay, % by weight, min. |
99.5 |
99.5 |
8207 |
|
Total acidity as HCI, % |
0.002-0.005 |
0.007-0.009 |
8202 |
|
Hydrolyzable chloride, wt. % |
0.007 max. |
0.008-0.012 |
8203 |
|
Isomer ratio - 2,4, wt.%
2,6, wt.% |
80 ± 1
20 ± 1 |
80 ± 1
20 ± 1 |
8207
8207 |
|
Color, APHA maximum |
15 |
15 |
8206 |
Typical Properties
Molecular weight ................................................................................ 174.2
Specific gravity 25°/25°C ...................................................................... 1.22
Boiling point 10 mm Hg, °F ................................................................... 248
Density, @ 20°C, lbs/gal ...................................................................... 10.2
Flash point, °F, (COC) ........................................................................... 270
Vapor pressure @ 20°C, mm Hg ........................................................... 0.01
Freezing point, °F ................................................................................ 53.6
Storage: Store under a dry air (-20°C dew point) or dry nitrogen blanket to exclude moisture. The most favorable storage temperature for T80 Isocyanate is between 60°F and 95°F (15.6°C-35°C). Storage above 95°F for extended periods may cause a change in product quality. Below 60°F T80 Isocyanate may begin to freeze. If freezing or partial freezing occurs slowly heat the product to 60-95°F to reliquify. The product must be thoroughly mixed before using to ensure uniform isomer distribution and reactivity.
Shipping information: 250KGS/ steel drums are standard.
Attention: This product is sold solely for use by industrial institutions. TDI is a hazardou |
