Tuesday, 09 August 2011 01:54

Ketones: Physical & Chemical Hazards

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Chemical Name
CAS-Number

Physical

Chemical

Subsidiary Risks

ACETONE
67-64-1

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

The substance can form explosive peroxides on contact with strong oxidants • Attacks many plastics

3

ACETYL BROMIDE
506-96-7

The substance decomposes on heating producing toxic and corrosive fumes • Reacts violently with water and alcohols, causing fire and explosion hazard

ACETYL-CHLORIDE
75-36-5

3

BENZOPHENONE
119-61-9

Reacts with strong oxidants

p-BENZOQUINONE
106-51-4

Dust explosion possible if in powder or granular form, mixed with air • If dry, it can be charged elecrostatically by swirling, pneumatic transport, pouring, etc

Reacts with strong oxidants causing fire and explosion hazard • Reacts violently with strong bases • Above 60 ºC when moist, is self-heating and decomposes giving off toxic gases (carbon monoxide)

6.1

2-CHLOROACETOPHENONE
532-27-4

On combustion, forms toxic and corrosive vapours • The substance decomposes on heating producing corrosive gas (hydrogen chloride)

1-CHLORO-2-PROPANONE
78-95-5

The substance polymerizes slowly under the influence of light • On combustion, forms toxic and corrosive gases (carbon oxides, hydrogen chloride, phosgene) • Reacts with strong oxidants

CYCLOHEXANONE
108-94-1

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

On combustion, forms carbon monoxide • Reacts with oxidants and nitric acid causing fire and explosion hazard

3

CYCLOPENTANONE
120-92-3

The vapour is heavier than air

The substance easily polymerizes under the influence of acids • On combustion, forms toxic gases (carbon oxides) • Reacts with acids

3

DIACETONE
123-42-2

3

DICHLORACETYL CHLORIDE
79-36-7

The substance decomposes on heating, on contact with moisture, alkali metal, earth alkali metal, metal powder, producing hydrogen chloride, phosgene, causing fire and explosion hazard • Reacts with strong oxidants, alcohols, water • Attacks many metals forming combustible gas

DIETHYL KETONE
96-22-0

The vapour is heavier than air and may travel along the ground; distant ignition possible • The vapour mixes well with air; explosive mixtures are easily formed

Reacts violently with oxidants causing fire and explosion hazard • Attacks many plastics

3

DIKETENE
674-82-8

3

2,6-DIMETHYL-4-HEPTANONE
108-83-8

Reacts with oxidants • Attacks some forms of plastics

3

DIPROPYL KETONE
123-19-3

3

ETHYL AMYL KETONE
106-68-3

3

KETENE
463-51-4

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

The substance may readily polymerize • Reacts violently with many organic compounds • Reacts with water to form acetic acid • Decomposes in alcohol and ammonia

MESITYL OXIDE
141-79-7

The substance can presumably form explosive peroxides • Reacts violently with strong oxidants • Attacks many plastics

3

4-METHOXY-4-METHYL-2-PENTANONE
107-70-0

3

METHYL AMYL KETONE
110-43-0

Reacts with oxidizing materials • Attacks some forms of plastics

3

METHYL BUTYL KETONE
591-78-6

Reacts violently with oxidants and may form unstable peroxides • Attacks plastics

METHYL ETHYL KETONE
78-93-3

3

5-METHYL-2-HEXANONE
110-12-3

3

METHYL ISOBUTYL KETONE
108-10-1

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

The substance can presumably form explosive peroxides • On combustion, forms carbon monoxide

3

METHYL ISOPROPYL KETONE
563-80-4

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

The substance decomposes on heating producing acrid smoke and toxic fumes • Reacts violently with strong oxidants

3

METHYL PROPYL KETONE
107-87-9

The vapour mixes well with air; explosive mixtures are easily formed

Can react vigorously with oxidizing agents

3

2,4-PENTANEDIONE
123-54-6

The vapour is heavier than air

The substance may polymerize under the influence of the light • On combustion, forms toxic carbon oxides • Reacts with strong oxidants, bases and reducing agents

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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