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METHYL ISOAMYL KETONE ICSC: 0815
Date of Peer Review: March 1998

5-Methylhexan-2-one
MIAK
2-Methyl-5-hexanone
CAS # 110-12-3 C7H14O / CH3CO(CH2)2CH(CH3)2
RTECS # MP3850000 Molecular mass: 114.2
UN # 2302
EC Index # 606-026-00-4
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Flammable.
NO open flames, NO sparks, and NO smoking.
AFFF, alcohol-resistant foam, powder, carbon dioxide.
EXPLOSION Above 36C explosive vapour/air mixtures may be formed.
Above 36C use a closed system, ventilation, and explosion-proof electrical equipment.
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE


Inhalation Cough. Headache. Dizziness. Drowsiness. Laboured breathing. Sore throat.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
Skin Dry skin. Redness.
Protective gloves. Protective clothing.
First rinse with plenty of water, then remove contaminated clothes and rinse again. Refer for medical attention.
Eyes Redness.
Safety spectacles or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Nausea. (See Inhalation).
Do not eat, drink, or smoke during work.
Rinse mouth. Do NOT induce vomiting. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Ventilation. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT wash away into sewer. Personal protection: filter respirator for organic gases and vapours.
EU Classification
Symbol: Xn
R: 10-20
S: (2-)-23-24/25
UN Classification
UN Hazard Class: 3
UN Pack Group: III
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-30S2302
NFPA Code: H1; F2; R0
Fireproof.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2005

SEE IMPORTANT INFORMATION ON BACK
METHYL ISOAMYL KETONE ICSC: 0815
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID, WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:
The vapour mixes well with air, explosive mixtures are easily formed.

CHEMICAL DANGERS:
Reacts violently with strong oxidants, strong bases, amines and isocyanates causing fire and explosion hazard. Attacks some plastic.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 50 ppm as TWA; (ACGIH 2004).
MAK: 10 ppm, 47 mg/m; Peak limitation category: I(2); Pregnancy risk group: IIc; (DFG 2004).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour.

INHALATION RISK:
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes, the skin and the respiratory tract The substance may cause effects on the kidneys, resulting in kidney impairment. Exposure above the OEL could cause lowering of consciousness.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis.
PHYSICAL PROPERTIES
Boiling point: 144C
Melting point: -74C
Relative density (water = 1): 0.89
Solubility in water, g/100 ml at 20C: 0.5 (poor)
Vapour pressure, kPa at 20C: 0.6
Relative vapour density (air = 1): 3.9
Relative density of the vapour/air-mixture at 20C (air = 1): 1.02
Flash point: 36C c.c.
Auto-ignition temperature: 191C
Explosive limits, vol% in air: 1.0-8.2 (at 93C)
Octanol/water partition coefficient as log Pow: 1.72 (estimated)
ENVIRONMENTAL DATA

NOTES
Card has been partly updated in October 2004 and 2005. See sections Occupational Exposure Limits, EU classification, Emergency Response.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2005