Methyl isopropyl ketone
2-Acetyl propane
C5H10O
Molecular mass: 86.13
ICSC # 0922
CAS # 563-80-4
RTECS # EL9100000
UN # 2397
EC # 606-007-00-0
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Highly flammable.
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NO open flames, NO sparks, and NO smoking.
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Foam,
powder,
carbon dioxide.
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Explosion
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Vapour/air mixtures are explosive.
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Closed system, ventilation, explosion-proof electrical equipment and lighting.
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In case of fire: keep drums, etc., cool by spraying with water.
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Exposure
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AVOID Exposure OF ADOLESCENTS AND CHILDREN!
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•Inhalation
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Burning sensation.
Cough.
Laboured breathing.
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Ventilation, local exhaust, or breathing protection.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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MAY BE ABSORBED!
Redness.
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Protective gloves.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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Redness.
Pain.
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Safety goggles,
or eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Nausea.
Vomiting.
Weakness.
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Rinse mouth.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Absorb remaining liquid in dry sand or inert absorbent and remove to safe place.
Do NOT wash away into sewer.
(Extra personal protection: A filter respirator for organic vapour).
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Fireproof.
Separated from flammable susbstances,
strong oxidants.
Well closed.
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F symbol
R: 11
S: 2-9-16-33
UN Hazard Class: 3
UN Packing Group: II
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Important Data
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Physical State; Appearance:
COLOURLESS LIQUID
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
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.
Chemical Dangers:
The substance decomposes
on heating
producing irritating fumes.
Reacts vigorously with oxidants.
Occupational Exposure Limits:
TLV: 200 ppm; 70 mg/m3 (as TWA) (ACGIH 1995-1996).
MAK not established.
OSHA PEL: none
NIOSH REL: TWA 200 ppm (705 mg/m3)
NIOSH IDLH: N.D. See: IDLH INDEX
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its vapour,
through the skin and
by ingestion.
Inhalation Risk:
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The substance
irritates the eyes, the skin and the respiratory tract.
The substance may cause effects on the central nervous system
, resulting in narcosis and weakness.
Effects of Long-Term or Repeated Exposure:
The liquid defats the skin.
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Physical
Properties
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Boiling point: 93-95°C
Melting point: -92°C
Relative density (water = 1): 0.80
Solubility in water, g/100 ml at 20°C: 0.6
Vapour pressure, kPa at 20°C: 5.5
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Relative vapour density (air = 1): 2.9
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.10
Flash point: -1°C
Auto-ignition temperature: 475°C
Explosive limits, vol% in air: 1.2-8
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Environmental
Data
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N O T E S
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ADDITIONAL INFORMATION
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ICSC: 0922
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3-METHYL-2-BUTANONE
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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