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Sunday, 07 August 2011 00:35

Azides: Physical & Chemical Hazards

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Chemical Name

CAS-Number

Physical

Chemical

UN Class or Division /  Subsidiary Risks

1,1'-AZOBIS(FORMAMIDE)
123-77-3

The substance decomposes on heating or on burning producing toxic fumes (nitrogen oxides)

8

CYANURIC CHLORIDE
108-77-0

3

1,1-DIMETHYLHYDRAZINE
57-14-7

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

The substance may spontaneously ignite on contact with air • in the presence of oxidizing agents • Reacts vigorously with oxidizing material such as air; vapour is inflammable in air • On combustion, forms toxic and/or flammable fumes including nitrogen oxides, hydrogen, ammonia, dimethylamine and hydrazoic acid • toxic fumes nitrogen • The substance is a strong reducing agent and reacts violently with oxidants like nitrogen tetroxide, hydrogen peroxide and nitric acid • The substance is a strong base, it reacts violently with acid and is corrosive • Reacts with oxygen causing fire and explosion hazard • Attacks plastic

6.1/ 3

1,2-DIMETHYLHYDRAZINE
540-73-8

EDETIC ACID
60-00-4

The substance decomposes on heating producing nitrous oxides • Reacts with strong oxidants, strong bases, copper, copper alloys and nickel

3/ 3/ 6.1

HYDRAZINE
302-01-2

6.1/ 3/ 8

METHYLHYDRAZINE
60-34-4

6.1/ 3/ 8

METHYLHYDRAZINE HYDROCHLORIDE
7339-53-9

6.1

PHENYLHYDRAZINE
100-63-0

The substance decomposes on heating and on burning producing toxic fumes including nitrogen oxides • Reacts with oxidants • Reacts violently with lead dioxide

6.1

PHENYLHYDRAZINE HYDROCHLORIDE
59-88-1

6.1

SODIUM AZIDE
26628-22-8

May explode on heating above melting point, especially on rapid heating causing fire and explosion hazard • The solution in water is a weak base • Reacts with copper, lead, silver, mercury and carbon disulfide to form particularly shock-sensitive compounds • Reacts with acids, forming toxic and explosive hydrogen azide • Very corrosive to aluminium

5.1

SODIUM DICHLOROCYANURATE
2893-78-9

The substance decomposes on heating, on contact with water, producing toxic fumes • The substance is a strong oxidant and reacts violently with combustible and reducing materials • The substance is a strong reducing agent and reacts with oxidants • The solution in water is a weak acid • Reacts violently with many substances causing fire and explosion hazard

1,2,4-TRIAZOLE
288-88-0

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

The substance decomposes on boiling • Upon heating, toxic fumes are formed • Reacts with strong oxidants and strong bases

5.1

TRICHLOROISOCYANURIC ACID
87-90-1

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