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NIOSH

DIISOBUTYL KETONE

ICSC: 0713

2,6-Dimethyl-4-heptanone
Isovalerone
2,6-Dimethylheptan-4-one
C9H18O / (CH3CH(CH3)CH2)2CO
Molecular mass: 142.2
ICSC # 0713 		CAS # 108-83-8
RTECS # MJ5775000
UN # 1157
EC # 606-005-00-X
October 10, 1997 Validated

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 49°C explosive vapour/air mixtures may be formed.
Above 49°C 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. Dizziness. Headache. Nausea. Sore throat. Vomiting.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
•SKIN Redness. Numbness.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
•EYES Redness. Pain.
Safety goggles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION (See Inhalation).
Do not eat, drink, or smoke during work.
Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

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. Personal protection: A/P2 filter respirator for organic vapour and harmful dust.
Fireproof. Separated from strong oxidants.

Xi symbol
R: 10-37
S: 2-24
UN Hazard Class: 3
UN Packing Group: III
ICSC: 0713 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

DIISOBUTYL KETONE

ICSC: 0713

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

PHYSICAL DANGERS:


CHEMICAL DANGERS:
Reacts with oxidants. Attacks some forms of plastics.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 25 ppm as TWA; (ACGIH 2004).
MAK: IIb (not established but data is available); (DFG 2004).
OSHA PEL†: TWA 50 ppm (290 mg/m3)
NIOSH REL: TWA 25 ppm (150 mg/m3)
NIOSH IDLH: 500 ppm See: 108838


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour, 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. Exposure to high concentrations 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: 168°C
Melting point: -42°C
Relative density (water = 1): 0.805
Solubility in water:
none
Vapour pressure, kPa at 20°C: 0.23
Relative vapour density (air = 1): 4.9
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.01
Flash point: 49°C c.c.
Auto-ignition temperature: 396°C
Explosive limits, vol% in air: 0.8-6.2 (at 93°C)

ENVIRONMENTAL
DATA


N O T E S

Card has been partly updated in October 2005. See sections Occupational Exposure Limits, Emergency Response.
Transport Emergency Card: TEC (R)-30GF1-I+II

NFPA Code: H1; F2; R0;

ADDITIONAL INFORMATION



ICSC: 0713 DIISOBUTYL KETONE
(C) IPCS, CEC, 1994
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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