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Sunday, 07 August 2011 07:08

Halogenated Saturated Hydrocarbons: Physical & Chemical Hazards

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Chemical Name
CAS-Number

Physical

Chemical

UN Class or Division /  Subsidiary Risks

BROMOFORM
75-25-2

The substance decomposes on heating producing toxic and corrosive fumes including hydrogen bromide and bromine • The substance is a strong acid, it reacts violently with bases and is corrosive to most metals • The substance is a medium strong acid • Substance is a weak acid • Reacts violently with oxidants, bases in powdered form and is corrosive to most metals • Reacts with alkaline metals, powdered aluminium, zinc and magnesium and acetone under basic conditions, causing fire and explosion hazard • Attacks some forms of plastic, rubber and coating •  Incompatible with sodium, potassium, calcium, powdered aluminium, zinc, magnesium, strong caustics, sodium potassium alloy, acetone and potassium hydroxide

6.1

CARBON TETRABROMIDE
558-13-4

The substance decomposes in a flame or on a hot surface, forming toxic gases (bromine) • Explodes on impact when mixed with lithium

6.1

CARBON TETRACHLORIDE
56-23-5

The vapour is heavier than air

On contact with hot surfaces or flames this substance decomposes forming toxic and irritating fumes (hydrogen chloride, chlorine,  phosgene) • Reacts violently with some metals such as aluminium, barium, magnesium, potassium, sodium, with fluorine and other substances, causing fire and explosion hazard • Attacks copper, lead and zinc

6.1

CHLOROBROMOMETHANE
74-97-5

The substance decomposes on heating producing hydrogen chloride, chlorine, phosgene, hydrogen bromide • Reacts with oxidants • Reacts with steel, aluminium, magnesium and zinc unless inhibited

6.1

1-CHLORO-3-BROMOPROPANE
109-70-6

6.1

1-CHLOROBUTANE
109-69-3

3

CHLOROFORM
67-66-3

The vapour is heavier than air

On contact with hot surfaces or flames this substance decomposes forming irritating and toxic fumes (hydrogen chloride, phosgene, chlorine) • The substance decomposes slowly under influence of air and light • Reacts violently with strong bases, strong oxidants, some metals, such as aluminium, lithium, magnesium, potassium, sodium and acetone, causing fire and explosion hazard • Attacks plastic, rubber and coatings

6.1

1,2-DIBROMO-3-CHLOROPROPANE
96-12-8

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

The substance decomposes on heating above the boiling point and on burning producing toxic fumes (hydrogen bromide, hydrogen chloride, carbon monoxide) • Reacts with aluminium, magnesium, tin and their alloys in presence of water • Reacts on contact with alkali producing 2-bromoallylalcohol • Attacks some forms of rubber and coatings

6.1

DIBROMOETHANE
74-95-3

The vapour is heavier than air

On contact with hot surfaces or flames this substance decomposes forming irritant fumes (hydrogen bromide) • The substance decomposes on heating producing irritant fumes (hydrogen bromide)

6.1

1,1-DICHLOROETHANE
75-34-3

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 and corrosive fumes including phosgene and hydrogen chloride • Reacts violently with strong oxidants, alkali metals and earth-alkali metals, powdered metals, causing fire and explosion hazard • Attacks aluminium, iron and polyethylene • Contact with strong caustic will cause formation of flammable and toxic acetaldehyde gas

3

1,1-DICHLORO-PROPANE
78-99-9

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

The substance decomposes on heating producing hydrogen chloride • Reacts with strong oxidants and strong bases

1,3-DICHLOROPROPANE
142-28-9

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

The substance decomposes on heating producing hydrogen chloride and phosgene • Reacts with oxidants, acids, bases, and alumina

ETHYL CHLORIDE
75-00-3

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

The substance decomposes on heating or on burning producing toxic gases (hydrogen chloride, phosgene) • Reacts violently with oxidants, alkaline metals, calcium, magnesium, aluminum powder, and zinc • Reacts with water or steam producing corrosive fumes of hydrogen chloride

2.1

ETHYL IODIDE
75-03-6

The vapour is heavier than air

On combustion, forms carbon monoxide, iodine and hydrogen iodide • The substance decomposes on burning producing iodine and hydrogen iodide • Reacts with oxidants • Reacts violently with silver chlorite causing fire and explosion hazard

ETHYLENE DIBROMIDE
106-93-4

6.1

ETHYLENE DICHLORIDE
107-06-2

3/6.1

HEPTACHLOR
76-44-8

The substance decomposes on heating producing toxic fumes: chlorine, hydrogen chloride • Reacts with strong oxidants

HEXACHLOROCYCLOHEXANE
608-73-1

The substance decomposes on heating or on burning producing highly toxic fumes (phosgene, chlorine and hydrogen chloride), and on contact with alkalis • Dehydrochlorination at room temperaure; dehydrochlorination when heated producing pentachlorocyclohexane and trichlorobenzenes

a-HEXACHLOROCYCLOHEXANE
319-84-6

The substance decomposes on heating or on burning producing toxic fumes (phosgene, hydrogen chloride) • Reacts violently with dimethylformamide in the presence of iron

b-HEXACHLOROCYCLOHEXANE
319-85-7

The substance decomposes on heating or on burning producing toxic fumes (phosgene, hydrogen chloride)

HEXACHLOROETHANE
67-72-1

The substance decomposes on heating above 300 °C producing toxic and corrosive fumes, phosgene and hydrogen chloride • Reacts violently with zinc, aluminium powder and sodium • Attacks iron in the presence of moisture

2-CHLOROPROPANE
75-29-6

3

ISOPROPYL CHLOROFORMATE
108-23-6

6.1/ 3/ 8

METHYL BROMIDE
74-83-9

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

Upon heating, toxic fumes are formed • Reacts with strong oxidants, aluminium and rubber

2.3

METHYL CHLORIDE
74-87-3

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

The substance decomposes on burning forming hydrogen chloride and phosgene, and on contact with oxidzing material, amides, amines, and aluminium producing hydrogen chloride and 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

2.1

METHYL IODIDE
74-88-4

6.1

METHYLENE CHLORIDE
75-09-2

The vapour is heavier than air • As a result of flow, agitation, etc, electrostatic charges can be generated

On contact with hot surfaces or flames this substance decomposes forming toxic and corrosive fumes • Reacts violently with metals such as aluminium, magnesium, sodium, potassium, lithium, strong bases and oxidants, causing fire and explosion hazard • Attacks some forms of plastics, rubber and coatings

6.1

PENTACHLOROETHANE
76-01-7

6.1

1,1,1,2-TETRACHLOROETHANE
630-20-6

6.1

1,1,2,2-TETRACHLOROETHANE
79-34-5

6.1

1,1,1-TRICHLOROETHANE
71-55-6

6.1

1,2,3-TRICHLOROPROPANE
96-18-4

The gas is heavier than air • The vapour is heavier than air

The substance decomposes on heating producing toxic fumes of chlorine and phosgene • Reacts violently with metals • Incompatible with active metals, strong caustics, strong oxidizers

1,2-DICHLOROPROPANE
78-87-5

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

On combustion, forms toxic and corrosive fumes and gases (hydrogen chloride and phosgene) • Reacts violently with strong oxidants, acids, and bases, causing fire and explosion hazard • Corrosive to aluminum alloys

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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