International Chemical Safety Cards

2-HEXANONE ICSC: 0489
2-HEXANONE
Methyl n-butyl ketone (MnBK, MBK)
Propylacetone
n-Butylmethylketone
C6H12O/C4H9COCH3
Molecular mass: 100.2
CAS # 591-78-6
RTECS # MP1400000
ICSC # 0489
UN # 1224
EC # 606-030-00-6
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 35°C explosive vapour/air mixtures may be formed.
Above 35°C use a closed system, ventilation, and explosion-proof electrical equipment.
In case of fire: keep cylinder cool by spraying with water.
 
EXPOSURE


INHALATION Cough. Drowsiness. Headache. Unconsciousness.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
SKIN MAY BE ABSORBED! Dry skin. Redness.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
EYES Redness. Pain. Blurred vision.
Safety goggles, face shield, 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 Abdominal pain. Diarrhoea. Nausea. Sore throat (further see Inhalation).
Do not eat, drink, or smoke during work.
Rinse mouth. Do NOT induce vomiting. Refer for medical attention.
SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
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 (extra personal protection: self-contained breathing apparatus).
Fireproof. Separated from strong oxidants. Cool.

F symbol
T symbol
R: 11-48/23
S: 9-16-29-44-51
UN Hazard Class: 3
UN Packing Group: III
SEE IMPORTANT INFORMATION ON BACK
ICSC: 0489 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

International Chemical Safety Cards

2-HEXANONE ICSC: 0489

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PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
Reacts violently with oxidants and may form unstable peroxides. Attacks plastics.

OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV: 5 ppm; 20 mg/m3 (skin) (ACGIH 1991-1992).


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation and through the skin.

INHALATION RISK:
A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C on spraying/dispersing much faster.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes, the skin and the respiratory tract. The substance may cause effects on the nervous system. Exposure may result in unconsciousness.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis. The substance may have effects on the nervous system.
PHYSICAL
PROPERTIES
 Boiling point: 126-128°C
Melting point: -57°C
Relative density (water = 1): 0.83
Solubility in water: moderate (1.4 g/100ml at 20°C)
Vapour pressure, kPa at 20°C: 0.36
Relative vapour density (air = 1): 3.5		 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.01
Flash point: 23°C
Auto-ignition temperature: 423°C
Explosive limits, vol% in air: 1.2-8%
Octanol/water partition coefficient as log Pow: 1.38
ENVIRONMENTAL
DATA
NOTES
The neurotoxicity of 2-hexanone is potentiated by aliphatic monoketones. Use of alcoholic beverages enhances the harmful effect. MBK potentiates the toxicity of some other chemical substances like chloroform, carbon tetrachloride, ethanol. Depending on the degree of exposure, periodic medical examination is indicated.
Transport Emergency Card: TEC (R)-30G35
NFPA Code: H 2; F 3; R 0;
ADDITIONAL INFORMATION


ICSC: 0489 2-HEXANONE
© IPCS, CEC, 1993
IMPORTANT LEGAL NOTICE: Neither the CEC or 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. 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.