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NIOSH

VALERIC ACID

ICSC: 0346

Pentanoic acid
Propylacetic acid
1-Butanecarboxylic acid
n-Pentanoic acid
C5H10O2 / CH3(CH2)3COOH
Molecular mass: 102.1
ICSC # 0346 		CAS # 109-52-4
RTECS # YV6100000
UN # 3265
EC # 607-143-00-3
May 03, 2002 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Combustible.
NO open flames.
Powder, water spray, foam, carbon dioxide.
EXPLOSION Above 86°C explosive vapour/air mixtures may be formed.
Above 86°C use a closed system, ventilation.

EXPOSURE
AVOID ALL CONTACT!
IN ALL CASES CONSULT A DOCTOR!
•INHALATION Burning sensation. Cough. Sore throat.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
•SKIN Redness. Pain. Skin burns.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
•EYES Redness. Pain. 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 Burning sensation. Abdominal pain. Shock or collapse.
Do not eat, drink, or smoke during work.
Rinse mouth. Give plenty of water to drink. Do NOT induce vomiting. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Collect leaking liquid in covered containers. Wash away spilled liquid with plenty of water. Do NOT let this chemical enter the environment.
Separated from strong bases.

C symbol
R: 34-52/53
S: 1/2-26-36-45-61
UN Hazard Class: 8
ICSC: 0346 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.

VALERIC ACID

ICSC: 0346

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P

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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 is a weak acid.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation 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 is corrosive to the eyes, the skin and the respiratory tract. Corrosive on ingestion.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:

PHYSICAL
PROPERTIES

Boiling point: 186-187°C
Melting point: -34.5°C
Relative density (water = 1): 0.94
Solubility in water, g/100 ml: 2.4
Vapour pressure, kPa at 20°C: 0.02
Relative vapour density (air = 1): 3.52
Flash point: 86°C c.c.
Auto-ignition temperature: 400°C
Explosive limits, vol% in air: 1.6-7.6
Octanol/water partition coefficient as log Pow: 1.39

ENVIRONMENTAL
DATA

The substance is harmful to aquatic organisms.

N O T E S

NFPA Code: H2; F2; R0;

Transport Emergency Card: TEC (R)-80GC3-II+III

ADDITIONAL INFORMATION



ICSC: 0346 VALERIC 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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