ADIPIC ACID (ICSC)

ADIPIC ACID	ICSC: 0369

Date of peer-review: March 1998

Hexanedioic acid
1,4-Butanedicarboxylic acid

CAS #	124-04-9	C₆H₁₀O₄ / HOOC(CH₂)₄COOH
RTECS #	AU8400000	Molecular mass: 146.14
UN #
EC #	607-144-00-9

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Combustible.	NO open flames.	Powder, water spray, foam, carbon dioxide.
EXPLOSION	Finely dispersed particles form explosive mixtures in air.	Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding).	In case of fire: keep drums, etc., cool by spraying with water.

EXPOSURE		PREVENT DISPERSION OF DUST! STRICT HYGIENE!
Inhalation	Cough. Sore throat.	Local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin		Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes	Redness. Pain.	Safety goggles, or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion		Do not eat, drink, or smoke during work.	Rinse mouth. Rest. Refer for medical attention.

SPILLAGE DISPOSAL

PACKAGING & LABELLING

Sweep spilled substance into plastic containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water.

EU Classification
Symbol: Xi
R: 36
S: (2-)
UN Classification

EMERGENCY RESPONSE

STORAGE

NFPA Code: H; F1; R0

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities © IPCS, CEC 2001

SEE IMPORTANT INFORMATION ON BACK

ADIPIC ACID

ICSC: 0369

IMPORTANT DATA

PHYSICAL STATE; APPEARANCE:
ODOURLESS, COLOURLESS CRYSTALLINE POWDER.

PHYSICAL DANGERS:
Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.

CHEMICAL DANGERS:
The substance decomposes on heating producing toxic and corrosive fumes of valeric acid and other substances. The substance is a weak acid. Reacts with oxidizing materials.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 5 mg/m^3 (as TWA) (ACGIH 1997).

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

INHALATION RISK:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes and the respiratory tract. Inhalation of the aerosol of this substance may cause asthmatic reactions (see Notes).

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: 338°C
Melting point: 152°C
Density: 1.36 g/ml
Solubility in water, g/100 ml at 15°C: 1.4 (moderate)
Vapour pressure, Pa at 18.5°C: 10
Relative vapour density (air = 1): 5.04

Flash point: 196°C c.c.
Auto-ignition temperature: 422°C
Octanol/water partition coefficient as log Pow: 0.08

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

LEGAL NOTICE

Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information

    See Also:
       Toxicological Abbreviations
       Adipic acid (FAO Nutrition Meetings Report Series 40abc)
       Adipic acid (WHO Food Additives Series 12)
       ADIPIC ACID (JECFA Evaluation)
       Adipic Acid (SIDS)