ICSC 0874 - 3-PENTANONE

« back to the search result list

3-PENTANONE	ICSC: 0874 (March 1996)
Dimethylacetone Methacetone Diethyl ketone

CAS #: 96-22-0

UN #: 1156

EC Number: 202-490-3

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


	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Shortness of breath.	Use 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.	Wear safety spectacles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion		Do not eat, drink, or smoke during work.	Rinse mouth.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Ventilation. Collect leaking and spilled liquid in sealable metal (mild steel) containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 3; UN Pack Group: II
STORAGE
Fireproof. Separated from oxidants.
PACKAGING

3-PENTANONE

ICSC: 0874

PHYSICAL & CHEMICAL INFORMATION
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. This generates fire and explosion hazard. Attacks many plastics.	Formula: C₅H₁₀O / CH₃CH₂COCH₂CH₃ Molecular mass: 86.1 Boiling point: 102°C Melting point: -42°C Relative density (water = 1): 0.81 (25°C) 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)

PHYSICAL & CHEMICAL INFORMATION

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. This generates fire and explosion hazard. Attacks many plastics.

Formula: C₅H₁₀O / CH₃CH₂COCH₂CH₃
Molecular mass: 86.1
Boiling point: 102°C
Melting point: -42°C
Relative density (water = 1): 0.81 (25°C)
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)

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its vapour. Effects of short-term exposure The substance is irritating to the eyes, skin and respiratory tract.	Inhalation risk A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C. Effects of long-term or repeated exposure The substance defats the skin, which may cause dryness or cracking.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its vapour.

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract.

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

Effects of long-term or repeated exposure
The substance defats the skin, which may cause dryness or cracking.

OCCUPATIONAL EXPOSURE LIMITS
TLV: 200 ppm as TWA; 300 ppm as STEL

ENVIRONMENT

NOTES

ADDITIONAL INFORMATION

EC Classification
Symbol: F, Xi; R: 11-37-66-67; S: (2)-9-16-25-33

All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.