2,4-PENTADIONE

International Chemical Safety Cards

2,4-PENTADIONE

ICSC: 0533

2,4-PENTADIONE
Acetyl 2-propanone
Acetoacetone
Acetyl acetone
Pentane-2,4-dione
C₅H₈O₂ / CH₃COCH₂COCH₃
Molecular mass: 100.13
CAS # 123-54-6
RTECS # SA1925000
ICSC # 0533
UN # 2310
EC # 606-029-00-0

TYPES OF HAZARD/ EXPOSURE	ACUTE HAZARDS/ SYMPTOMS	PREVENTION	FIRST AID/ FIRE FIGHTING
FIRE	Flammable.	NO open flames, NO sparks, and NO smoking.	Powder, AFFF, foam, carbon dioxide.
EXPLOSION	Above 34°C explosive vapour/air mixtures may be formed.	Above 34°C use a closed system, ventilation, and explosion-proof electrical equipment.	In case of fire: keep drums, etc., cool by spraying with water.

EXPOSURE		STRICT HYGIENE!
INHALATION	Ataxia. Dizziness. Drowsiness. Headache. Laboured breathing. Nausea. Vomiting.	Ventilation, local exhaust, or breathing protection.	Fresh air, rest. Artificial respiration if indicated. Refer for medical attention.
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 Inhalation).	Do not eat, drink, or smoke during work.	Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Ventilation. Collect leaking and spilled liquid in sealable containers as far as possible. Wash away remainder with plenty of water. Do NOT let this chemical enter the environment (extra personal protection: filter respirator for organic gases and vapours).

Fireproof. Separated from strong oxidants. Keep in the dark.

Xn symbol
R: 10-22
S: (2-)21-23-24/25
UN Hazard Class: 3
UN Subsidiary Risks: 6.1
UN Packing Group: III

SEE IMPORTANT INFORMATION ON BACK

ICSC: 0533

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

2,4-PENTADIONE

ICSC: 0533

I

M

P

O

R

T

A

N

T

D

A

T

A

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

PHYSICAL DANGERS:
The vapour is heavier than air.

CHEMICAL DANGERS:
The substance may polymerize under the influence of light. Reacts with strong oxidants, bases and reducing agents.

OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV not established.

ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour, through the skin and by ingestion.

INHALATION RISK:
No indication can be given about the rate in which a harmful concentration in the air is reached 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 nervous system , resulting in tissue lesions.

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
Melting point: -23°C
Relative density (water = 1): 0.98
Solubility in water, g/100 ml: 16
Vapour pressure, kPa at 20°C: 0.93

Relative vapour density (air = 1): 3.45
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.02
Flash point: 34°C c.c.
Auto-ignition temperature: 340°C
Explosive limits, vol% in air: 2.4%-11.6%