ADIPIC ACID 0369
March 1998
Hexanedioic acid
CAS No: 124-04-9
1,4-Butanedicarboxylic acid
RTECS No: AU8400000
C6H10O4 / HOOC(CH2)4COOH
UN No:
Molecular mass: 146.14
EC No: 607-144-00-9
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Combustible. NO open flames. Powder, water spray, foam, carbon
FIRE
dioxide.
Finely dispersed particles form Prevent deposition of dust; closed In case of fire: keep drums, etc.,
EXPLOSION
explosive mixtures in air. system, dust explosion-proof cool by spraying with water.
electrical equipment and lighting.
Prevent build-up of electrostatic
charges (e.g., by grounding).
EXPOSURE PREVENT DISPERSION OF DUST!
STRICT HYGIENE!
Cough. Sore throat. Local exhaust or breathing Fresh air, rest. Refer for medical
Inhalation
protection. attention.
Protective gloves. Protective Remove contaminated clothes.
Skin
clothing. Rinse skin with plenty of water or
shower.
Redness. Pain. Safety goggles, or eye protection in First rinse with plenty of water for
Eyes
combination with breathing several minutes (remove contact
protection. lenses if easily possible), then take
to a doctor.
Do not eat, drink, or smoke during Rinse mouth. Rest. Refer for
Ingestion
work. medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into plastic containers; if Xi Symbol
appropriate, moisten first to prevent dusting. Wash R: 36
away remainder with plenty of water. S: 2
EMERGENCY RESPONSE STORAGE
NFPA Code: H; F1; R0
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission
International 漏 IPCS 1999
Programme on
Chemical Safety SEE IMPORTANT INFORMATION ON THE BACK.
0369 ADIPIC ACID
IMPORTANT DATA
Physical State; Appearance Routes of Exposure
ODOURLESS, COLOURLESS CRYSTALLINE POWDER. The substance can be absorbed into the body by inhalation of
its aerosol.
Physical Dangers
Inhalation Risk
Dust explosion possible if in powder or granular form, mixed
with air. If dry, it can be charged electrostatically by swirling, Evaporation at 20C is negligible; a harmful concentration of
pneumatic transport, pouring, etc. airborne particles can, however, be reached quickly when
dispersed.
Chemical Dangers
Effects of Short-term Exposure
The substance decomposes on heating producing toxic and
corrosive fumes of valeric acid and other substances. The The substance irritates the eyes and the respiratory tract.
substance is a weak acid. Reacts with oxidizing materials. Inhalation of the aerosol of this substance may cause
asthmatic reactions (see Notes).
Occupational Exposure Limits
TLV: ppm; 5 mg/m3 (as TWA) (ACGIH 1997). Effects of Long-term or Repeated Exposure
Repeated or prolonged contact may cause skin sensitization.
Repeated or prolonged inhalation exposure may cause
asthma.
PHYSICAL PROPERTIES
Boiling point: 338C Relative vapour density (air = 1): 5.04
Melting point: 152C Flash point: 196C c.c.
Density: 1.36 g/ml Auto-ignition temperature: 422C
Solubility in water, g/100 ml at 15C: 1.4 (moderate) Octanol/water partition coefficient as log Pow: 0.08
Vapour pressure, Pa at 18.5C: 10
ENVIRONMENTAL DATA
NOTES
The symptoms of asthma often do not become manifest until a few hours have passed and they are aggravated by physical effort.
Rest and medical observation are therefore essential. Anyone who has shown symptoms of asthma due to this substance should
avoid all further contact with this substance.
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE
for the use which might be made of this information
漏 IPCS 1999
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