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Friday, 12 August 2011 01:22

Phenols & Phenolic Compounds: Physical & Chemical Hazards

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Chemical Name
CAS-Number

Physical

Chemical

UN Class or Division /  Subsidiary Risks

CATECHOL
120-80-9

On combustion, forms acrid and irritating fumes • Reacts with oxidants

p-CHLORO-m-CRESOL
59-50-7

6.1

2-CHLOROPHENOL
95-57-8

The vapour is heavier than air

The substance decomposes on heating producing toxic and corrosive fumes (hydrochloric acid, chlorine) • Reacts with oxidants

6.1

3-CHLOROPHENOL
108-43-0

The substance decomposes on heating producing toxic and corrosive fumes (hydrochloric acid, chlorine) • Reacts with oxidants

4-CHLOROPHENOL
106-48-9

The vapour is heavier than air

The substance decomposes on heating producing toxic and corrosive fumes (hydrochloric acid, chlorine) • Reacts with oxidants

6.1

CRESOL, ALL ISOMERS
1319-77-3

The substance decomposes on heating producing strong acids and bases, causing fire and explosion hazard • Attacks many metals

6.1/ 8

o-CRESOL
95-48-7

On combustion, forms toxic fumes • Reacts violently with strong oxidizing agents, causing fire and explosion hazard • Easily oxidized on exposure to air

6.1/ 8

m-CRESOL
108-39-4

The substance decomposes on burning producing toxic and irritating fumes • Reacts with strong oxidants

6.1/ 8

p-CRESOL
106-44-5

On combustion, forms toxic fumes • Reacts violently with strong oxidizing agents, causing fire and explosion hazard

6.1/ 8

2,6-DI-tert-BUTYL-p-CRESOL
128-37-0

The substance decomposes on heating and on contact with oxidizing materials

2,4-DICHLOROPHENOL
120-83-2

The vapour is heavier than air

On combustion, forms corrosive gas (hydrogen chloride) • Reacts violently with strong oxidants • Gives off toxic fumes in a fire

6.1

2,5-DICHLOROPHENOL
583-78-8

The substance decomposes on burning producing irritating and poisonous gases • Reacts with oxidants, acid chlorides, acid anhydrides

6.1

3,5-DICHLOROPHENOL
591-35-5

The substance decomposes on burning producing irritating and poisonous gases, acid chlorides, acid anhydrides • Reacts with oxidants

6.1

2,4-DIMETHYLPHENOL
105-67-9

6.1

DINITRO-o-CRESOL
534-52-1

6.1

HYDROQUINONE
123-31-9

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

Reacts violently with sodium hydroxide

6.1

2-HYDROXYBIPHENYL
90-43-7

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

Producing carbon monoxide, acrid smoke and irritant fumes • Reacts with strong bases and strong oxidants

PENTACHLOROPHENOL
87-86-5

The substance decomposes on heating above 200 °C, producing toxic fumes and toxic gases including hydrogen chloride, dioxines, chlorinated phenols • Reacts violently with strong oxidants and water, causing fire and explosion hazard

6.1

PENTACHLOROPHENOL, SODIUM SALT
131-52-2

On contact with hot surfaces or flames this substance decomposes forming hydrocarbon chloride, chlorinated phenols, carbon monoxide, and Na2O • Reacts with strong oxidants causing fire and explosion hazard

6.1

PHENOL
108-95-2

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

May explode on heating above 78 °C • On combustion, forms toxic fumes (carbon monoxide) • Upon heating, toxic fumes are formed • The solution in water is a weak acid • Reacts with oxidants causing fire and explosion hazard

6.1

PYROGALLIC ACID
87-66-1

Upon heating, toxic fumes are formed • The substance is a weak acid • Reacts with oxidants and bases

RESORCINOL
108-46-3

6.1

2,3,4,6-TETRACHLOROPHENOL
58-90-2

6.1

2,3,5,6-TETRACHLOROPHENOL
935-95-5

The vapour is heavier than air

The substance decomposes on heating and on contact with strong oxidants producing toxic and irritant vapours and fumes such as hydrogen chloride, phosgene • The substance is a weak acid

6.1

2,3,4-TRICHLORO PHENOL
15950-66-0

The substance decomposes on heating producing carbon monoxide, hydrogen chloride • Reacts with oxidants, acid anhydrides, and acid chlorides

2,3,5-TRICHLORO PHENOL
933-78-8

The substance decomposes on heating, on burning and on contact with strong oxidants producing toxic and irritant vapour and fumes (hydrogen chloride and phosgene) • The substance is a weak acid • Reacts with strong oxidants

2,3,6-TRICHLOROPHENOL
933-75-5

May explode on heating • The substance decomposes on heating, on contact with strong oxidants producing toxic and irritant vapours and fumes (hydrogen chloride and phosgene) • The substance is a weak acid • Reacts with strong oxidants

2,4,5-TRICHLOROPHENOL
95-95-4

May explode on heating to decomposition • The substance decomposes on heating and on contact with strong oxidants producing toxic and irritating fumes (chlorine, hydrochloric acid) • The substance is a weak acid • Reacts with strong oxidants • Reacts in an alkaline medium at high temperatures producing highly toxic chlorinated dioxins

2,4,6-TRICHLOROPHENOL
88-06-2

On combustion, forms toxic fumes (HCI, CO) • The substance decomposes on heating or on burning producing toxic and corrosive fumes (hydrogen chloride and chlorine) • Reacts violently with strong oxidants

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