|
Chemical Name |
Physical |
Chemical |
UN Class or Division / Subsidiary Risks |
|
1,5-NAPHTYLENE DIISOCYANATE |
The substance decomposes on heating producing toxic fumes (nitrogen oxides) |
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METHYLENE BISPHENYL ISOCYANATE |
The substance may polymerize due to heating above 204 °C or under the influence of temperatures above 204 °C. •On combustion, forms toxic and corrosive fumes including nitrogen oxides and hydrogen cyanide. •Reacts readily with water to form insoluble polyureas. •Reacts violently with acids, alcohols, amines, bases and oxidants causing fire and explosion hazard |
6.1 |
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CYCLOHEXYL ISOCYANATE |
The vapour is heavier than air and may travel along the ground; distant ignition possible |
The substance may polymerize due to heating and under the influence of incompatible materials. •The substance decomposes on burning producing toxic fumes (nitrogen oxides). •Reacts with oxidants and strong bases, water, alcohol, acids and amines |
6.1 |
|
ETHYL ISOCYANATE |
3/ 6.1 |
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HEXAMETHYLENE DIISOCYANATE |
The substance will polymerize under the influence of temperatures above 93 °C. •On combustion, forms toxic and corrosive fumes including nitrogen oxides and hydrogen cyanide. •The substance decomposes on contact with water to form amine and polyureas. •Reacts violently with acids, alcohols, amines, bases and oxidants causing fire and explosion hazard. •Attacks copper |
6.1 |
|
|
ISOPHORONE DIISOCYANATE |
The substance decomposes on heating producing toxic fumes (nitrogen oxides). •Reacts with oxidants, acids, alcohols, amines, amides, mercaptanes. •Attacks many metals, plastics, and rubber |
6.1 |
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METHYL ISOCYANATE |
The vapour is heavier than air and may travel along the ground; distant ignition possible. •The vapour mixes well with air, explosive mixtures are easily formed |
The substance may polymerize due to heating or under the influence of water and catalysts. •The substance decomposes on heating producing toxic gases (hydrogen cyanide, nitrogen oxides, carbon monoxide). •Reacts with strong oxidants. •Reacts violently with water, acids, alcohols, amines, iron, steel, zinc, tin, copper (or alloys of these metals) causing fire and explosion hazard. •Attacks some forms of plastic, rubber and coatings |
6.1/ 3 |
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PHENYL ISOCYANATE |
6.1 |
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TOLUENE DIISOCYANATE |
6.1 |
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TOLUENE-2,4-DIISOCYANATE |
6.1 |
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TOLUENE-2,6-DIISOCYANATE |
6.1 |
For UN Class: 1.5 = very insensitive substances which have a mass explosion hazard; 2.1 = flammable gas; 2.3 = toxic gas; 3 = flammable liquid; 4.1 = flammable solid; 4.2 = substance liable to spontaneous combustion; 4.3 = substance which in contact with water emits flammable gases; 5.1 = oxidizing substance; 6.1 = toxic; 7 = radioactive; 8 = corrosive substance