|
Chemical Name |
Physical |
Chemical |
UN Class or Division / Subsidiary Risks |
|
BENZENE |
The vapour is heavier than air and may travel along the ground; distant ignition possible |
Reacts violently with oxidants and halogens causing fire and explosion hazard |
3 |
|
BIPHENYL |
Dust explosion possible if in powder or granular form, mixed with air |
The substance decomposes on heating producing toxic gases and acrid smokes, and fumes • Reacts with oxidants causing fire and explosion hazard |
|
|
p-tert-BUTYLTOLUENE |
6.1 |
||
|
CUMENE |
3 |
||
|
p-CYMENE |
The vapour is heavier than air |
Reacts with oxidants • Attacks rubber |
3 |
|
DECAHYDRONAPHTHALENE |
3 |
||
|
DIETHYLBENZENE |
As a result of flow, agitation, etc, electrostatic charges can be generated |
Reacts with strong oxidants causing fire and explosion hazard |
3 |
|
DIVINYL BENZENE |
The substance can polymerize due to heating with fire or explosion hazard • Reacts violently with oxidants |
||
|
DODECYL BENZENE |
The vapour is heavier than air |
||
|
ETHYL BENZENE |
3 |
||
|
D-LIMONENE |
On combustion, forms toxic gases Cox • Tends to oxidize on prolonged exposure |
||
|
L-LIMONENE |
3 |
||
|
p-METHYLSTYRENE |
The vapour is heavier than air |
The substance if not stabilized will polymerize • The substance decomposes on heating producing toxic gases and fumes (carbon monoxide) • The substance is a strong oxidant and reacts with combustible and reducing materials • The substance is a strong reducing agent and reacts with oxidants • Reacts with strong oxidants and strong acids |
3 |
|
METHYLNAPHTHALENE |
The substance decomposes on heating producing irritating fumes |
||
|
METHYLSTYRENE |
The substance if not stabilized will polymerize with generation of heat • Catalysts such as peroxides, strong acids, or aluminum chloride should be avoided • The substance decomposes on heating producing toxic gases and fumes (carbon monoxide) • The substance is a strong reducing agent and reacts violently with oxidants |
3 |
|
|
a-METHYLSTYRENE |
The vapour is heavier than air and may travel along the ground; distant ignition possible |
The substance decomposes on heating producing carbon monoxide • Reacts with strong oxidants |
3 |
|
o-METHYLSTYRENE |
The substance if not stabilized will polymerize • The substance decomposes on heating producing toxic gases and fumes (carbon monoxide) • Reacts with strong oxidants and strong acids |
3 |
|
|
m-METHYLSTYRENE |
The substance if not stabilized will polymerize • The substance decomposes on heating producing toxic gases and fumes (carbon monoxide) • Reacts with strong oxidants and strong acids |
3 |
|
|
PROPENYLBENZENE, |
The vapour is heavier than air |
The substance decomposes on heating producing toxic gases and fumes (carbon monoxide) • Reacts with strong oxidants |
|
|
STYRENE |
As a result of flow, agitation, etc, electrostatic charges can be generated |
The substance can form explosive peroxides • The substance may polymerize due to warming, under the influence of light and on contact with many compounds such as oxygen, oxidizing agents, peroxides and strong acids with fire or explosion hazard • The substance decomposes on burning producing toxic fumes, styrene oxide • Attacks copper and copper alloys |
3 |
|
TOLUENE |
The vapour is heavier than air and may travel along the ground; distant ignition possible • As a result of flow, agitation, etc, electrostatic charges can be generated |
Reacts violently with strong oxidants causing fire and explosion hazard |
3 |
|
1,3,5-TRIMETHYLBENZENE |
3 |
||
|
o-XYLENE |
As a result of flow, agitation, etc, electrostatic charges can be generated |
Reacts violently with strong oxidants causing fire and explosion hazard |
3 |
|
m-XYLENE |
As a result of flow, agitation, etc, electrostatic charges can be generated |
Reacts violently with strong oxidants such as nitric acid |
3 |
|
p-XYLENE |
As a result of flow, agitation, etc, electrostatic charges can be generated |
Reacts violently with strong oxidants such as nitric acid |
3 |
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