Tuesday, 09 August 2011 01:05

Hydrocarbons, Halogenated Aromatic: Physical & Chemical Hazards

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Chemical Name
CAS-Number

Physical

Chemical

UN Class or Division /  Subsidiary Risks

BENZAL CHLORIDE
98-87-3

On contact with hot surfaces or flames this substance decomposes forming toxic fumes of chlorinated compounds • Reacts violently with strong oxidants or metals • On contact with air it emits corrosive fumes (hydrogen chloride)

6.1

BENZATHONIUM CHLORIDE
121-54-0

On combustion, forms toxic and irritating gases (hydrogen chloride, nitrogen and carbon oxides) • Gives off toxic fumes in a fire

BENZENE CHLORIDE
108-90-7

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

The substance decomposes on heating, on burning and on contact with hot surfaces, producing corrosive and toxic fumes • Reacts with strong oxidants • Reacts violently with chlorates, dimethylsulfoxide and alkali metals causing fire and explosion hazard • Attacks rubber

3

BENZOYL CHLORIDE
98-88-4

The vapour is heavier than air

On contact with hot surfaces or flames this substance decomposes forming highly toxic and corrosive gases (phosgene and HCl) • The substance decomposes violently on heating or on contact with alkalis, amines, other basic compounds, and DMSO, causing fire and explosion hazard • Reacts violently with strong oxidants • Reacts with water or steam producing heat, and toxic and corrosive fumes • Attacks many metals forming flammable hydrogen gas, also on contact with metal salts, alcohols, amines and strong bases

8

BENZYL BROMIDE
100-39-0

6.1/ 8

BENZYL CHLORIDE
100-44-7

The substance will polymerize under the influence of all common metals except nickel and lead, with evolution of corrosive fumes (hydrogen chloride), with fire or explosion hazard • On combustion, forms toxic and corrosive fumes (hydrogen chloride) • Reacts vigorously with strong oxidants • Reacts with water, producing corrosive fumes (hydrogen chloride) • Attacks many metals in presence of water

6.1/ 8

BENZYL CHLOROFORMATE
501-53-1

8

BROMOBENZENE
108-86-1

3

CHLORINATED CAMPHENE
8001-35-2

The substance decomposes on heating,on burning and/or under influence of alkali, strong sunlight, and catalysts like iron producing toxic fumes • Attacks iron • Incompatible with strongly alkaline pesticides

CHLOROBENZILATE
510-15-6

6.1

5-CHLORO-o-TOLUIDINE
95-79-4

6.1

o-CHLOROTOLUENE
95-49-8

3

p-DICHLOROBENZENE
106-46-7

The vapour is heavier than air

On combustion, forms toxic and corrosive fumes including phosgene, hydrogen chloride • The substance decomposes on contact with acids or acid fumes producing highly toxic fumes • Reacts with strong oxidants, strong reducing agents and alkali metals causing fire and explosion hazard • Attacks some forms of plastic, rubber, coatings

HEXACHLOROBENZENE
118-74-1

The substance decomposes on heating producing toxic fumes • Reacts violently with dimethyl formamide above 65°C

6.1

HEXACHLOROPHENE
70-30-4

6.1

OCTACHLORONAPHTHALENE
2234-13-1

The substance decomposes on heating producing toxic fumes (chlorine)

PENTACHLOROBENZENE
608-93-5

The substance decomposes on heating or on contact with acids or acids fumes producing toxic, irritating fumes (hydrogen chloride)

4.1

PENTACHLORONAPHTALENE
1321-64-8

On contact with hot surfaces or flames this substance decomposes forming toxic fumes of chlorine

POLYCHLORINATED BIPHENYL (AROCLOR 1254)
11097-69-1

The substance decomposes in a fire producing irritating and toxic gases

9

1,2,4,5-TETRACHLOROBENZENE
95-94-3

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

On combustion, forms phosgene • The substance decomposes on heating or on burning producing toxic and corrosive fumes including hydrogen chloride and phosgene • acts violently with strong base, strong oxidants causing explosion hazard • n heated with sodium hydroxide and solvent (methanol or ethylene glycol) to prepare trichlorophenol, serious explosions have occurred

3

1,2,3-TRICHLOROBENZENE
87-61-6

6.1

1,2,4-TRICHLOROBENZENE
120-82-1

The substance decomposes on heating or on burning, producing toxic and irritating fumes (phosgene, chlorine and hydrogen chloride) • Reacts violently with oxidants, acids, and acid fumes

6.1

1,3,5-TRICHLOROBENZENE
108-70-3

6.1

TRICHLOROMETHYLBENZENE
98-07-7

8

TRICHLORONAPHTHALENE
1321-65-9

The substance decomposes on heating and on burning producing toxic and corrosive fumes including hydrogen chloride, phosgene) • Reacts with strong oxidants ing fire and explosion hazard

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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