2,4-PENTADIONE 0533
August 1997
CAS No: 123-54-6 Acetyl 2-propanone
RTECS No: SA1925000 Acetoacetone
UN No: 2310 Acetyl acetone
EC No: 606-029-00-0 Pentane-2,4-dione
C5H8O2 / CH3COCH2COCH3
Molecular mass: 100.13
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
FIRE Flammable. NO open flames, NO sparks, and NO Powder, foam carbon dioxide.
smoking.
EXPLOSION Above 34/C explosive vapour/air Above 34/C use a closed system, In case of fire: keep drums, etc., cool by
mixtures may be formed. ventilation, and explosion-proof electrical spraying with water.
equipment.
EXPOSURE STRICT HYGIENE!
Inhalation Ataxia. Dizziness. Drowsiness. Ventilation, local exhaust, or breathing Fresh air, rest. Artificial respiration if
Headache. Laboured breathing. Nausea. protection. indicated. Refer for medical attention.
Vomiting.
Skin MAY BE ABSORBED! Redness. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse and
then wash skin with water and soap.
Eyes Redness. Pain. Safety goggles, face shield. First rinse with plenty of water for several
minutes (remove contact lenses if easily
possible), then take to a doctor.
Ingestion Diarrhoea. Weakness. (further see Do not eat, drink, or smoke during work. Rinse mouth. Induce vomiting (ONLY IN
Inhalation). CONSCIOUS PERSONS!). Refer for
medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Ventilation. Collect leaking and spilled liquid in sealable EU classification
containers as far as possible. Wash away remainder with Xn Symbol
plenty of water. Do NOT let this chemical enter the R: 10-22
environment (extra personal protection: filter respirator for S: (2-)21-23-24/25
organic gases and vapours). UN classification
UN Hazard Class: 3
UN Subsidiary Risks: 6.1
UN Pack Group: III
EMERGENCY RESPONSE SAFE STORAGE
NFPA Code: H2; F2; R0 Fireproof. Separated from strong oxidants. Keep in the dark.
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission 漏
IPCS 2006
International
Programme on
SEE IMPORTANT INFORMATION ON THE BACK.
Chemical Safety
0533 2,4-PENTADIONE
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS LIQUID, WITH CHARACTERISTIC ODOUR. The substance can be absorbed into the body by inhalation of its vapour,
through the skin and by ingestion.
Physical dangers
The vapour is heavier than air. Inhalation risk
No indication can be given about the rate in which a harmful concentration
Chemical dangers in the air is reached on evaporation of this substance at 20/C.
The substance may polymerize under the influence of light. Reacts with
strong oxidants, bases and reducing agents. Effects of short-term exposure
The substance irritates the eyes, the skin and the respiratory tract. The
Occupational exposure limits substance may cause effects on the nervous system, resulting in tissue
TLV not established. lesions.
MAK: 20 ppm, 83 mg/m3, skin absorption (H); Peak limitation category:
II(2) Pregnancy risk group: C (DFG 2006). Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. The
substance may have effects on the thymus, lungs, central nervous
system and nasal passage.
PHYSICAL PROPERTIES
Boiling point: 140/C Relative vapour density (air = 1): 3.45
Melting point: -23/C Relative density of the vapour/air-mixture at 20/C (air = 1): 1.02
Relative density (water = 1): 0.98 Flash point: 34/C c.c.
Solubility in water, g/100 ml: 16 Auto-ignition temperature: 340/C
Vapour pressure, kPa at 20/C: 0.93 Explosive limits, vol% in air: 2.4-11.6
ENVIRONMENTAL DATA
The substance is harmful to aquatic organisms.
NOTES
Card has been partially updated in August 2007: see Fire fighting, Occupational Exposure Limits.
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE for the use which might be made of this information
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