International Chemical Safety Cards

3-PENTANONE

ICSC: 0874

3-PENTANONE
Diethyl ketone
Dimethylacetone
Methacetone
C₅H₁₀O/CH₃CH₂COCH₂CH₃
Molecular mass: 86.1
CAS # 96-22-0
RTECS # SA8050000
ICSC # 0874
UN # 1156
EC # 606-006-00-5

TYPES OF HAZARD/ EXPOSURE	ACUTE HAZARDS/ SYMPTOMS	PREVENTION	FIRST AID/ FIRE FIGHTING
FIRE	Highly flammable.	NO open flames, NO sparks, and NO smoking.	AFFF, alcohol-resistant foam, powder, carbon dioxide.
EXPLOSION	Vapour/air mixtures are explosive.	Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling.	In case of fire: keep drums, etc., cool by spraying with water.

EXPOSURE
INHALATION	Cough. Shortness of breath.	Ventilation.	Fresh air, rest. Refer for medical attention.
SKIN	Dry skin. Redness.	Protective gloves.	Remove contaminated clothes. Rinse skin with plenty of water or shower.
EYES	Redness.	Safety spectacles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
INGESTION		Do not eat, drink, or smoke during work.	Rinse mouth.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Ventilation. Collect leaking liquid in sealable metal (mild steel) containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT wash away into sewer. (Extra personal protection: filter A for organic vapours).

Fireproof. Separated from oxidants.

F symbol
R: 11
S: (2-)9-16-33
UN Hazard Class: 3
UN Packing Group: II

SEE IMPORTANT INFORMATION ON BACK

ICSC: 0874

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

3-PENTANONE

ICSC: 0874

I

M

P

O

R

T

A

N

T

D

A

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A

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

PHYSICAL DANGERS:
The vapour is heavier than air and may travel along the ground; distant ignition possible. The vapour mixes well with air, explosive mixtures are easily formed.

CHEMICAL DANGERS:
Reacts violently with oxidants, causing fire and explosion hazard. Attacks many plastics.

OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV: 200 ppm; 705 mg/m³ (ACGIH 1995-1996).

ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour.

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

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes, the skin and the respiratory tract.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The liquid defats the skin.

PHYSICAL
PROPERTIES

Boiling point: 102°C
Melting point: -42°C
Relative density (water = 1): (25°C) 0.81
Solubility in water: moderate
Vapour pressure, kPa at 20°C: 2.0
Relative vapour density (air = 1): 3.0

Relative density of the vapour/air-mixture at 20°C (air = 1): 1.01
Flash point: 13°C o.c.
Auto-ignition temperature: 452°C
Explosive limits, vol% in air: 1.6-3
Octanol/water partition coefficient as log Pow: 0.99 (estimated)

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.