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NIOSH

PROPIONIC ACID

ICSC: 0806

Ethylformic acid
Methylacetic acid
Propanoic acid
Ethanecarboxylic acid
C3H6O2 / CH3CH2COOH
Molecular mass: 74.1
ICSC # 0806 		CAS # 79-09-4
RTECS # UE5950000
UN # 1848
EC # 607-089-00-0
September 10, 1997 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

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

•INHALATION Burning sensation. Cough. Shortness of breath. Sore throat.
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.
Face shield.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•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

STORAGE

PACKAGING & LABELLING

Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT let this chemical enter the environment. (Extra personal protection: chemical protection suit including self-contained breathing apparatus).
Fireproof. Separated from strong oxidants, strong bases, food and feedstuffs.
Do not transport with food and feedstuffs.
Note: B
C symbol
R: 34
S: 1/2-23-36-45
UN Hazard Class: 8
UN Packing Group: III
ICSC: 0806 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

PROPIONIC ACID

ICSC: 0806

I

M

P

O

R

T

A

N

T


D

A

T

A

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 causing fire and explosion hazard. Attacks many metals forming flammable/explosive gas (hydrogen - see ICSC 0001).

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 10 ppm; 30 mg/m3 (ACGIH 1997).
MAK: IIb (not established but data is available) (DFG 2007).
OSHA PEL†: none
NIOSH REL: TWA 10 ppm (30 mg/m3) ST 15 ppm (45 mg/m3)
NIOSH IDLH: N.D. See: IDLH INDEX


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

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 is corrosive to the eyes, the skin, and the respiratory tract.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:

PHYSICAL
PROPERTIES

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

ENVIRONMENTAL
DATA

The substance is harmful to aquatic organisms.

N O T E S

Luprosil, Prozoin, Tenox P Grain Preservative and Tenox P are trade names.
Transport Emergency Card: TEC (R)-642

NFPA Code: H3; F2; R0;
Card has been partially updated in : see Occupational Exposure Limits,

ADDITIONAL INFORMATION



ICSC: 0806 PROPIONIC ACID
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, 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. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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