Chemical Name
CAS-Number

Physical

Chemical

UN Class or Division /  Subsidiary Risks

ALLYL BROMIDE
106-95-6

3/ 6.1

ALLYL CHLORIDE
107-05-1

The vapour is heavier than air and may travel along the ground; distant ignition possible

The substance may polymerize due to heating or under the influence of different metals, metal chlorides and sulfuric acid with fire or explosion hazard • On combustion, forms toxic and corrosive fumes (hydrogen chloride) • Reacts violently with strong oxidants and metals such as aluminum, magnesium, zinc, causing fire and explosion hazard • Attacks plastic, rubber and coatings

3/ 6.1

2-CHLORO-1,3-BUTADIENE
126-99-8

3/ 6.1

3-CHLORO-2-METHYLPROPENE
563-47-3

3

1,1-DICHLOROETHENE
75-35-4

The vapour is heavier than air and may travel along the ground; distant ignition possible

The substance can readily form explosive peroxides • The substance will polymerize readily due to heating or under the influence of oxygen, sunlight, copper or aluminium, with fire or explosion hazard • May explode on heating or on contact with flames • The substance decomposes on burning producing toxic and corrosive fumes (hydrogen chloride, phosgene and chlorine) • Reacts violently with oxidants

3

1,2-DICHLOROETHYLENE
540-59-0

The vapour is heavier than air and may travel along the ground; distant ignition possible

On contact with hot surfaces or flames this substance decomposes forming toxic gases and vapours (hydrogen chloride, phosgene, and carbon monoxide) • Reacts with strong oxidants causing fire and explosion hazard

3

cis-1,2-DICHLOROETHYLENE
156-59-2

3

trans- 1,2- DICHLOROETHYLENE
156-60-5

3

1,2-DICHLORO-2-PROPENE
78-88-6

3

1,3-DICHLOROPROPENE
542-75-6

3

cis-1,3-DICHLOROPROPENE
10061-01-5

3

trans-1,3-DICHLOROPROPENE
10061-02-6

3

HEXACHLOROBUTADIENE
87-68-3

The vapour is heavier than air

The substance decomposes on burning producing irritating or poisonous gases (phosgene)

6.1

PROPARGYL BROMIDE
106-96-7

TETRACHLOROETHYLENE 
127-18-4

The vapour is heavier than air

On contact with hot surfaces or flames this substance decomposes forming toxic and corrosive fumes (hydrogen chloride, phosgene, chlorine) • The substance decomposes slowly on contact with moisture producing trichloroacetic acid and hydrochloric acid • Reacts with metals such as aluminium, lithium, barium, berrylium

6.1

TRICHLOROETHYLENE
79-01-6

The vapour is heavier than air • As a result of flow, agitation, etc, electrostatic charges can be generated

On contact with hot surfaces or flames this substance decomposes forming toxic and corrosive fumes (phosgene, hydrogen chloride, chlorine) • The substance decomposes on contact with strong alkali producing dichloroacetylene , which increases fire hazard • Reacts violently with metals such as lithium, magnesium aluminium, titanium, barium and sodium • Slowly decomposed by light in presence of moisture, with formulation of corrosive hydrochloric acid

6.1

VINYL BROMIDE
593-60-2

2.1

VINYL CHLORIDE
75-01-4

The gas is heavier than air, and may travel along the ground; distant ignition possible

The substance can under specific circumstances form peroxides, initiating explosive polymerization • The substance will polymerize readily due to heating and under the influence of air, light, and on contact with a catalyst, strong oxidizing agents and metals such as copper and aluminium, with fire or explosion hazard • The substance decomposes on burning producing toxic and corrosive fumes (hydrogen chloride and phosgene)

2.1

VINYLIDENE CHLORIDE
75-35-4

The gas is heavier than air, and may travel along the ground; distant ignition possible

The substance can form explosive peroxides • The substance can polymerize due to heating or under the influence of oxygen, sunlight, copper or aluminium with fire or explosion hazard • May explode on heating or on contact with flames • The substance decomposes on burning producing hydrogen fluoride • Reacts violently with oxidants and hydrogen chloride

2.1