ICSC 0806 - PROPIONIC ACID

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PROPIONIC ACID	ICSC: 0806 (September 1997)
Ethylformic acid Methylacetic acid Propanoic acid Ethanecarboxylic acid

CAS #: 79-09-4

UN #: 1848

EC Number: 201-176-3

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Flammable. Above 54°C explosive vapour/air mixtures may be formed.	NO open flames, NO sparks and NO smoking. Above 54°C use a closed system, ventilation and explosion-proof electrical equipment.	Use water spray, powder, alcohol-resistant foam, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water.

AVOID ALL CONTACT!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Burning sensation. Cough. Shortness of breath. Sore throat.	Use ventilation, local exhaust or breathing protection.	Fresh air, rest. Half-upright position. Refer for medical attention.
Skin	Skin burns. Pain. Blisters.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .
Eyes	Redness. Pain. Blurred vision. Severe deep burns.	Wear face shield.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Abdominal cramps. Burning sensation. Nausea. Shock or collapse. Sore throat. Vomiting.	Do not eat, drink, or smoke during work.	Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT let this chemical enter the environment. Personal protection: chemical protection suit including self-contained breathing apparatus.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 8; UN Pack Group: III
STORAGE
Fireproof. Separated from strong oxidants, strong bases and food and feedstuffs.
PACKAGING
Do not transport with food and feedstuffs.

PROPIONIC ACID

ICSC: 0806

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance OILY COLOURLESS LIQUID WITH PUNGENT ODOUR. Physical dangers Chemical dangers The substance is a medium strong acid. Reacts with bases, strong oxidants and amines. This generates fire and explosion hazard. Attacks many metals. This produces flammable/explosive gas (hydrogen - see ICSC 0001).	Formula: C₃H₆O₂ / CH₃CH₂COOH Molecular mass: 74.1 Boiling point: 141°C Melting point: -21°C Relative density (water = 1): 0.99 Solubility in water: very good Vapour pressure, Pa at 20°C: 390 Relative vapour density (air = 1): 2.6 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.01 Flash point: 54°C c.c., 57°C o.c. Auto-ignition temperature: 485°C Explosive limits, vol% in air: 2.1-12 Octanol/water partition coefficient as log Pow: 0.33

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
OILY COLOURLESS LIQUID WITH PUNGENT ODOUR.

Physical dangers

Chemical dangers
The substance is a medium strong acid. Reacts with bases, strong oxidants and amines. This generates fire and explosion hazard. Attacks many metals. This produces flammable/explosive gas (hydrogen - see ICSC 0001).

Formula: C₃H₆O₂ / CH₃CH₂COOH
Molecular mass: 74.1
Boiling point: 141°C
Melting point: -21°C
Relative density (water = 1): 0.99
Solubility in water: very good
Vapour pressure, Pa at 20°C: 390
Relative vapour density (air = 1): 2.6
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.01
Flash point: 54°C c.c., 57°C o.c.
Auto-ignition temperature: 485°C
Explosive limits, vol% in air: 2.1-12
Octanol/water partition coefficient as log Pow: 0.33

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its vapour and by ingestion. Effects of short-term exposure The substance is corrosive 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

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is corrosive 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

OCCUPATIONAL EXPOSURE LIMITS
TLV: 10 ppm as TWA. MAK: 31 mg/m³, 10 ppm; peak limitation category: I(2); pregnancy risk group: C. EU-OEL: 31 mg/m³, 10 ppm as TWA; 62 mg/m³, 20 ppm as STEL

ENVIRONMENT
The substance is harmful to aquatic organisms.

NOTES

ADDITIONAL INFORMATION

EC Classification
Symbol: C; R: 34; S: (1/2)-23-36-45; Note: B

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