Chemical Name |
Physical |
Chemical |
Subsidiary Risks |
ACETONE |
The vapour is heavier than air and may travel along the ground; distant ignition possible |
The substance can form explosive peroxides on contact with strong oxidants • Attacks many plastics |
3 |
ACETYL BROMIDE |
The substance decomposes on heating producing toxic and corrosive fumes • Reacts violently with water and alcohols, causing fire and explosion hazard |
||
ACETYL-CHLORIDE |
3 |
||
BENZOPHENONE |
Reacts with strong oxidants |
||
p-BENZOQUINONE |
Dust explosion possible if in powder or granular form, mixed with air • If dry, it can be charged elecrostatically by swirling, pneumatic transport, pouring, etc |
Reacts with strong oxidants causing fire and explosion hazard • Reacts violently with strong bases • Above 60 ºC when moist, is self-heating and decomposes giving off toxic gases (carbon monoxide) |
6.1 |
2-CHLOROACETOPHENONE |
On combustion, forms toxic and corrosive vapours • The substance decomposes on heating producing corrosive gas (hydrogen chloride) |
||
1-CHLORO-2-PROPANONE |
The substance polymerizes slowly under the influence of light • On combustion, forms toxic and corrosive gases (carbon oxides, hydrogen chloride, phosgene) • Reacts with strong oxidants |
||
CYCLOHEXANONE |
The vapour is heavier than air and may travel along the ground; distant ignition possible |
On combustion, forms carbon monoxide • Reacts with oxidants and nitric acid causing fire and explosion hazard |
3 |
CYCLOPENTANONE |
The vapour is heavier than air |
The substance easily polymerizes under the influence of acids • On combustion, forms toxic gases (carbon oxides) • Reacts with acids |
3 |
DIACETONE |
3 |
||
DICHLORACETYL CHLORIDE |
The substance decomposes on heating, on contact with moisture, alkali metal, earth alkali metal, metal powder, producing hydrogen chloride, phosgene, causing fire and explosion hazard • Reacts with strong oxidants, alcohols, water • Attacks many metals forming combustible gas |
||
DIETHYL KETONE |
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 |
Reacts violently with oxidants causing fire and explosion hazard • Attacks many plastics |
3 |
DIKETENE |
3 |
||
2,6-DIMETHYL-4-HEPTANONE |
Reacts with oxidants • Attacks some forms of plastics |
3 |
|
DIPROPYL KETONE |
3 |
||
ETHYL AMYL KETONE |
3 |
||
KETENE |
The gas is heavier than air and may travel along the ground; distant ignition possible |
The substance may readily polymerize • Reacts violently with many organic compounds • Reacts with water to form acetic acid • Decomposes in alcohol and ammonia |
|
MESITYL OXIDE |
The substance can presumably form explosive peroxides • Reacts violently with strong oxidants • Attacks many plastics |
3 |
|
4-METHOXY-4-METHYL-2-PENTANONE |
3 |
||
METHYL AMYL KETONE |
Reacts with oxidizing materials • Attacks some forms of plastics |
3 |
|
METHYL BUTYL KETONE |
Reacts violently with oxidants and may form unstable peroxides • Attacks plastics |
||
METHYL ETHYL KETONE |
3 |
||
5-METHYL-2-HEXANONE |
3 |
||
METHYL ISOBUTYL KETONE |
The vapour is heavier than air and may travel along the ground; distant ignition possible |
The substance can presumably form explosive peroxides • On combustion, forms carbon monoxide |
3 |
METHYL ISOPROPYL KETONE |
The vapour is heavier than air and may travel along the ground; distant ignition possible |
The substance decomposes on heating producing acrid smoke and toxic fumes • Reacts violently with strong oxidants |
3 |
METHYL PROPYL KETONE |
The vapour mixes well with air; explosive mixtures are easily formed |
Can react vigorously with oxidizing agents |
3 |
2,4-PENTANEDIONE |
The vapour is heavier than air |
The substance may polymerize under the influence of the light • On combustion, forms toxic carbon oxides • Reacts with strong oxidants, bases and reducing agents |
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