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Sunday, 07 August 2011 06:39

Heterocyclic Compounds: Physical & Chemical Hazards

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Chemical Name
CAS-Number

Physical

Chemical

UN Class or Division /  Subsidiary Risks

N-AMINOETHYLPIPERAZINE
140-31-8

8

2-AMINOPYRIDINE
504-29-0

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

The substance decomposes on burning producing toxic gases and vapours including nitrous oxides • Reacts with strong oxidants causing fire and explosion hazard • The substance is a strong base that is soluble in water

6.1

BENZOGUANAMINE
91-76-9

6.1

3,6-DICHLOROPICOLINIC ACID
1702-17-6

The substance decomposes on burning producing toxic and corrosive gases • Reacts with bases forming salts • Solutions of them are corrosive to aluminum, iron, and tin

2-MERCAPTOBENZOTHIAZOLE
149-30-4

On combustion, forms toxic gases (carbon monoxide and sulphur compounds) • The substance decomposes on heating and on burning producing toxic and irritating fumes (sulphur and nitrogen oxides) • Reacts with acids with the formation of highly toxic fumes of sulphur compounds • Reacts with acids or acid fumes producing toxic fumes (sulphur compounds)

2-MERCAPTOBENZOTHIAZOLE DISULPHIDE
120-78-5

On combustion, forms toxic gases: carbon, sulphur and nitrogen oxides • Reacts with strong oxidants and acids

2-METHYLPYRIDINE
109-06-8

The substance decomposes on heating producing toxic fumes (nitrogen oxides) • Reacts with oxidants and strong acids • Attacks copper and its alloys

3

3-METHYLPYRIDINE
108-99-6

The substance decomposes on heating producing toxic fumes (nitrogen oxides) • Reacts with oxidants and strong acids

3

4-METHYLPYRIDINE
108-89-4

The substance decomposes on heating producing toxic fumes (nitrogen oxides) • Reacts with oxidants and strong acids

3

1-METHYL-2-PYRROLIDONE
872-50-4

The substance decomposes on heating above 315 °C producing toxic fumes • Reacts with strong acids • Attacks aluminium

MORPHOLINE
110-91-8

The substance decomposes on heating producing toxic fumes (nitrogen oxides) • The substance is a weak base • Reacts with strong oxidants causing fire hazard • Attacks copper and its compounds

3

NICOTINE
54-11-5

The substance decomposes on heating producing toxic fumes • Reacts violently with strong oxidants • Attacks rubber and some plastics

NICOTINE TARTRATE
65-31-6

Shock-sensitive compounds are formed with this substance • The substance decomposes on heating producing toxic fumes • The substance is a strong reducing agent and reacts with oxidants

6.1

PHENOTHIAZINE
92-84-2

The substance decomposes on heating and on burning producing toxic and irritating fumes including nitrogen oxides and sulphur oxides

PHENYLENEPYRENE
193-39-5

Upon heating, toxic fumes are formed

PIPERAZINE
110-85-0

8

PIPERIDINE
110-89-4

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

The substance decomposes on heating and on burning producing toxic gases such as nitrogen oxides • The substance is a medium strong base • Reacts violently with oxidants

3/ 8

PROPYLENE IMINE
75-55-8

3

PYRIDINE
110-86-1

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

On combustion, forms toxic fumes (amines) • The substance decomposes on heating or on burning producing toxic fumes (nitrogen oxides and hydrogen cyanide) • Reacts violently with strong oxidants and strong acids

3

PYRROLIDINE
123-75-1

3/ 8

2-PYRROLIDINONE
616-45-5

The substance decomposes on heating producing toxic fumes • Reacts with strong acids cf • methylpyrrolidone • Attacks aluminium

QUINOLINE
91-22-5

The substance decomposes on heating and on burning producing toxic fumes of nitrogen oxides • Reacts with strong oxidants and maleine anhydride

6.1

TETRAHYDROTHIOPHENE
110-01-0

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

On combustion, forms toxic fumes • Reacts violently with strong oxidants and nitric acid • Attacks rubber

3

THIOPHENE
110-02-1

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

The substance decomposes on heating and on burning producing toxic and irritating fumes (sulphur oxides) • Reacts violently with oxidizing materials, including fuming nitric acid

3

2-VINYLPYRIDINE
100-69-6

6.1/ 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