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Friday, 12 August 2011 00:09

Sulphur Compounds, Inorganic: Physical & Chemical Hazards

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Chemical Name
CAS-Number

Physical

Chemical

UN Class or Division /  Subsidiary Risks

AMMONIUM PERSULPHATE
7727-54-0

5.1

AMMONIUM SULPHATE
7783-20-2

8

CARBON DISULPHIDE
75-15-0

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

May explosively decompose on shock, friction, or concussion • May explode on heating • The substance may spontaneously ignite on contact with air and on contact with hot surfaces producing toxic fumes of sulphur dioxide • Reacts violently with oxidants causing fire and explosion hazard • Attacks some forms of plastic, rubber and coating

3/ 6.1

CARBONYL SULPHIDE
463-58-1

2.3/2.1

HYDROGEN SULPHIDE
7783-06-4

2.3/ 2.1

POTASSIUM PERSULPHATE
7727-21-1

5.1

POTASSIUM SULPHIDE
1312-73-8

Dust explosion possible if in powder or granular form, mixed with air

Heating may cause violent combustion or explosion • May explosively decompose on shock, friction, or concussion • The substance may spontaneously ignite on contact with air forming hydrogen sulphide • The solution in water is a strong base, it reacts violently with acid and is corrosive forming sulphur dioxide

4.2

SODIUM HYDROSULPHITE
7775-14-6

4.2

SODIUM PERSULPHATE
7775-27-1

5.1

SODIUM SULPHIDE
1313-82-2

4.2

SULPHUR DIOXIDE
7446-09-5

2.3/ 8

SULPHUR TETRAFLUORIDE
7783-60-0

2.3/ 8

SULPHUR TRIOXIDE
7446-11-9

8

SULPHUR
7704-34-9

Dust explosion possible if in powder or granular form, mixed with air • If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.

On combustion, forms sulphur oxides including sulphur dioxide • Reacts violently with strong oxidants causing fire and explosion hazard

4.1

SULPHURYL CHLORIDE
7791-25-5

8

THIONYL CHLORIDE
7719-09-7

8

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