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Thursday, 18 August 2011 05:00

Nitrocompounds, Aromatic: Physical & Chemical Hazards

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Chemical Name
CAS-Number

Physical

Chemical

UN Class or Division /  Subsidiary Risks

1-AMINO-2-METHYL-5-NITROBENZENE
99-55-8

6.1

1-CHLORO-2,4-DINITROBENZENE
97-00-7

Heating may cause violent combustion or explosion at about 149 °C • May explode on heating under confinement or by shock • The substance decomposes on heating producing toxic gases (oxides of nitrogen, chlorine, hydrogen chloride, phosgene) • 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 bases

6.1

1-CHLORO-2-NITROBENZENE
88-73-3

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

The substance decomposes on heating or on burning producing toxic and corrosive fumes (nitrogen oxides, chlorine, hydrogen chloride, phosgene) • Reacts violently with reducing materials, causing fire and explosion hazard

6.1

1-CHLORO-3-NITROBENZENE
121-73-3

6.1

1-CHLORO-4-NITROBENZENE
100-00-5

The substance decomposes on heating producing toxic gases (nitrogen oxides, hydrochloric acid, phosgene and chlorine) • The substance is a strong oxidant and reacts violently with combustible and reducing materials • Reacts with many substances causing fire and explosion hazard

2,3-DINITROTOLUENE
602-01-7

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

May explode on heating • The substance decomposes on heating producing carbon monoxide and oxides of nitrogen • Reacts with strong bases, oxidants, and reducing agents

6.1

2,6-DINITROTOLUENE
606-20-2

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

May explode on heating • The substance decomposes on heating producing carbon monoxide and oxides of nitrogen • Reacts with strong bases, oxidants, and reducing agents

6.1

3,4-DINITROTOLUENE
610-39-9

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

May explode on heating • The substance decomposes on heating producing carbon monoxide and oxides of nitrogen • Reacts with strong bases, oxidants, and reducing agents

6.1

DINITROBENZENE
25154-54-5

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

May explode on heating under confinement • On combustion, forms toxic gases and fumes • Reacts violently with strong oxidants, strong bases, and reducing agents, causing fire and explosion hazard • Mixtures with nitric acid are highly explosive!

6.1

1,3-DINITROBENZENE
99-65-0

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

May explode on heating under confinement • On combustion, forms toxic gases and fumes • Reacts violently with strong oxidants, strong bases, and reducing metals (tin and zinc), causing fire and explosion hazard • Mixtures with nitric acid are highly explosive!

6.1

o-DINITROBENZENE
528-29-0

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

May explode on heating under confinement • On combustion, forms toxic gases and fumes • Reacts violently with strong oxidants, strong bases, and reducing metals, eg, zinc and tin, fire and explosion hazard • Mixtures with nitric acid are highly explosive!

6.1

p-DINITROBENZENE
100-25-4

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

May explode on heating under confinement • On combustion, forms toxic gases and fumes • Reacts violently with strong oxidants, strong bases, and metals eg, tin and zinc, causing fire and explosion hazard • Mixtures with nitric acid are highly explosive!

6.1

2,4-DINITROPHENOL
51-28-5

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

May explosively decompose on shock, friction, or concussion • May explode on heating

DINITROTOLUENE
25321-14-6

The vapour is heavier than air • Dust explosion possible if in powder or granular form, mixed with air

The substance can form explosive peroxides • May explode on heating or exposure to flames • The substance decomposes on heating producing toxic gases and fumes (carbon monoxide and oxides of nitrogen) • Reacts violently with strong oxidants causing fire and explosion hazard • Reacts with strong bases and metals such as tin and zinc and may cause evolution of heat and increase in pressure • Attacks some forms of plastics, rubber, and coatings

6.1

2,4-DINITROTOLUENE
121-14-2

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

May explode on heating • The substance decomposes on heating producing carbon monoxide and oxides of nitrogen • Reacts with strong bases, oxidants, and reducing agents

6.1

5-NITRO-o-ANISIDINE
99-59-2

6.1

NITROBENZENE
98-95-3

On combustion, forms corrosive fumes including nitrogen oxides • Reacts violently with strong oxidants and reducing agents, causing fire and explosion hazard • Attacks many plastics • Forms explosive (thermally unstable) substances or mixtures with many organic and inorganic compounds like oxidants, aluminium chloride with phenol, potassium hydroxide anhydrous or with small amounts of methanol, aniline with glycerol, phosphoruspentachloride, nitric acid, sulphuric acid, potassium

6.1

4-NITRODIPHENYLAMINE
836-30-6

The substance decomposes on heating or on burning producing toxic fumes (nitrogen oxides) • Reacts with strong oxidantsIncompatibility: strong oxidizing agents and strong bases

1-NITRONAPHTHALENE
86-57-7

4.1

o-NITROPHENOL
88-75-5

6.1

m-NITROPHENOL
554-84-7

6.1

p-NITROPHENOL
100-02-7

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

May explode on heating • The substance decomposes on heating or on burning producing toxic fumes including nitrogen oxides, causing fire and explosion hazard • The substance is a strong oxidant and reacts violently with combustible and reducing materials • Mixtures with potassium hydroxide are explosive

6.1

o-NITROTOLUENE
88-72-2

The substance decomposes on contact with strong oxidants, sulfuric acid, reducing agents, acids or bases producing toxic fumes, causing fire and explosion hazard • Attacks some forms of plastics, rubber, and coatings

6.1

m-NITROTOLUENE
99-08-1

6.1

p-NITROTOLUENE
99-99-0

The substance decomposes on heating producing toxic fumes (nitrogen oxides) • Reacts violently with strong oxidizers or sulfuric acid causing fire and explosion hazard • Attacks some forms of plastics, rubber and coatings

6.1

PICRIC ACID
88-89-1

May explosively decompose on shock, friction, or concussion • May explode on heating • Shock-sensitive compounds are formed with metals, particularly copper, lead, mercury and zinc • On combustion, forms toxic carbon and nitrogen oxides • Reacts vigorously with oxidants and reducing materials

1.1D

TETRYL
479-45-8

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

May explosively decompose on shock, friction, or concussion • The substance decomposes explosively on heating to 187 °C • Contact of tetryl with some oxidizable materials may cause fire and explosions • Detonates spontaneously on contact with trioxygendifluoride • T gases and vapours (such as nitrogen oxides) may be released on burning/exploding

1.1D

2,4,6-TRINITROTOLUENE
118-96-7

May explosively decompose on shock, friction, or concussion • Upon heating, toxic fumes are formed • Reacts violently with reducing agents causing fire and explosion hazard • Reacts with heavy metals • Explodes on heating to 240 °C

1.1D

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
Guide to Occupations
Guide to Chemicals
Resources
Guide to Units and Abbreviations