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Tuesday, 09 August 2011 00:32

Hydrocarbons, Aliphatic Unsaturated: Physical & Chemical Hazards

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Chemical Name
CAS-Number

Physical

Chemical

UN Class or Division /  Subsidiary Risks

cis-2-BUTENE
590-18-1

The gas is heavier than air and may travel along the ground; distant ignition possible, and may accumulate in low ceiling spaces causing deficiency of oxygen • As a result of flow, agitation, etc, electrostatic charges can be generated

trans-2-BUTENE
624-64-6

The gas is heavier than air and may travel along the ground; distant ignition possible, and may accumulate in low ceiling spaces causing deficiency of oxygen • As a result of flow, agitation, etc, electrostatic charges can be generated

1,3-BUTADIENE
106-99-0

The gas is heavier than air, and may travel along the ground; distant ignition possible • Liquid 1,3-butadiene floats and boils on water

The substance can under specific circumstances form peroxides, initiating explosive polymerization • The substance may polymerize due to warming with fire or explosion hazard • Shock-sensitive compounds are formed with copper and its alloys • The substance decomposes explosively on rapid heating under pressure • Reacts vigorously with oxidants and many other substances, causing fire and explosion hazard

2.1

n-BUTENE
106-98-9

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

The substance may polymerize • May explode on heating • Reacts violently with oxygen and oxidants, causing fire and explosion hazard

2.1

2-BUTENE
107-01-7

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

The substance can polymerize in contact with organic and inorganic acids, halogens and halogenic substances

1,3-CYCLOHEXADIENE
592-57-4

The vapour is heavier than air

The substance can form explosive peroxides on exposure to air • On combustion, forms toxic gases • Reacts with strong oxidants causing fire and explosion hazard

CYCLOHEXENE
110-83-8

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

The substance can form explosive peroxides • The substance may polymerize under certain conditions • Reacts with strong oxidants causing fire and explosion hazard

3

CYCLOPENTADIENE
542-92-7

The vapour is heavier than air

Reacts with nitric acid, sulfuric acid and strong oxidants, causing fire and explosion hazard • The substance dimerizes spontaneously or on contact with peroxides or trichloroacetic acid

ETHYLENE
74-85-1

The gas is lighter than air

The substance may polymerize to form aromatic compounds due to heating up to 600°C • Reacts violently with chlorine in sunlight causing fire and explosion hazard • Reacts with oxidants causing explosive hazard

ETHYLIDENE NORBORNENE
16219-75-3

As a result of flow, agitation, etc, electrostatic charges can be generated

The substance may polymerize • Reacts violently with strong oxidants

1-HEXENE
592-41-6

The vapour is heavier than air and may travel along the ground; distant ignition possible, and may accumulate in low ceiling spaces causing deficiency of oxygen

Reacts vigorously with oxidants

3

SOBUTENE
115-11-7

The gas is heavier than air and may travel along the ground; distant ignition possible, and may accumulate in low ceiling spaces causing deficiency of oxygen • As a result of flow, agitation, etc, electrostatic charges can be generated

The substance can presumably form explosive peroxides • The substance is able to polymerize with fire or explosion hazard • Reacts violently with oxidants, chlorine, fluorine, nitrogen oxides, hydrogen chloride, hydrogen bromide, causing fire and explosion hazard • Attacks some plastics and natural rubber

ISOPRENE
78-79-5

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

The substance can readily form explosive peroxides • The substance polymerizes with fire or explosion hazard • Heating may cause violent combustion or explosion • Reacts with strong oxidants, strong reductants, strong acids, strong bases, acid chlorides, alcohols, alkali metals

2.1

1,7-OCTADIENE
3710-30-3

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

The substance may polymerize under the influence of radical generating substances • On combustion, forms toxic and irritating fumes • Reacts with oxidants

3

1-OCTENE
111-66-0

The vapour mixes well with air, explosive mixtures are easily formed • As a result of flow, agitation, etc, electrostatic charges can be generated

The substance can presumably form explosive peroxides • Reacts violently with strong oxidants • Reacts with acids

2,4,4-TRIMETHYL-1-PENTENE
107-39-1

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

On combustion, forms toxic fumes • Upon heating, toxic fumes are formed • Reacts violently with oxidants

2,4,4-TRIMETHYL-2-PENTENE
107-40-4

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

Upon heating, toxic fumes are formed • Reacts with oxidants

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

 

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Contents

Preface
Part I. The Body
Part II. Health Care
Part III. Management & Policy
Part IV. Tools and Approaches
Part V. Psychosocial and Organizational Factors
Part VI. General Hazards
Part VII. The Environment
Part VIII. Accidents and Safety Management
Part IX. Chemicals
Part X. Industries Based on Biological Resources
Part XI. Industries Based on Natural Resources
Part XII. Chemical Industries
Part XIII. Manufacturing Industries
Part XIV. Textile and Apparel Industries
Part XV. Transport Industries
Part XVI. Construction
Part XVII. Services and Trade
Part XVIII. Guides