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Tuesday, 09 August 2011 00:51

Hydrocarbons, Aromatic: Physical & Chemical Hazards

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Chemical Name
CAS-Number

Physical

Chemical

UN Class or Division /  Subsidiary Risks

BENZENE
71-43-2

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
92-52-4

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
98-51-1

6.1

CUMENE
98-82-8

3

p-CYMENE
99-87-6

The vapour is heavier than air

Reacts with oxidants • Attacks rubber

3

DECAHYDRONAPHTHALENE
91-17-8

3

DIETHYLBENZENE
25340-17-4

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

Reacts with strong oxidants causing fire and explosion hazard

3

DIVINYL BENZENE
1321-74-0

The substance can polymerize due to heating with fire or explosion hazard • Reacts violently with oxidants

DODECYL BENZENE
123-01-3

The vapour is heavier than air

ETHYL BENZENE
100-41-4

3

D-LIMONENE
5989-27-5

On combustion, forms toxic gases Cox • Tends to oxidize on prolonged exposure

L-LIMONENE
5989-54-8

3

p-METHYLSTYRENE
622-97-9

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
1321-94-4

The substance decomposes on heating producing irritating fumes

METHYLSTYRENE
25013-15-4

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
98-83-9

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
611-15-4

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
100-80-1

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,
873-66-5

The vapour is heavier than air

The substance decomposes on heating producing toxic gases and fumes (carbon monoxide) • Reacts with strong oxidants

STYRENE
100-42-5

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
108-88-3

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
108-67-8

3

o-XYLENE
95-47-6

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
108-38-3

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

Reacts violently with strong oxidants such as nitric acid

3

p-XYLENE
106-42-3

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

 

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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