Adipic acid

  • Hexanedioc acid
  • 1,4-Butanedicarboxylic acid
  • 1,6-Hexanedioic acid
  • Asapic
  • Inipol DS
  • Acifloctin
Formula
HOOC(CH2)4COOH
Structure
Description
Colorless or white crystalline solid. Odorless.
Uses
Raw material for pharmaceuticals, perfume fixative.

Registry Numbers and Inventories.
CAS
124-04-9
EC (EINECS/ELINCS)
204-673-3
EC Index Number
607-144-00-9
EC Class
Irritant
RTECS
AU8400000
RTECS class
Mutagen; Primary Irritant
UN (DOT)
9077
Merck
13,163
Beilstein/Gmelin
1209788
Beilstein Reference
4-02-00-01956
Swiss Giftliste 1
G-5933
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C6H10O4
Formula mass
146.14
Melting point, °C
152 - 154
Boiling point, °C
337
Vapor pressure, mmHg
0.1
Vapor density (air=1)
5.04
Saturation Concentration
96 ppm at 18.5 C (calculated)
Evaporization number
Practically zero
Density
1.398 g/cm3 (-143 C)
Solubility in water
14 g/L
Viscosity
2.43 cp (200 C)
Refractive index
1.439 (20 C)
pKa/pKb
4.39 (pKa)
Partition coefficient, pKow
0.08
Heat of fusion
34.0 kJ/mol
Heat of vaporization
140 kJ/mol
Heat of combustion
-2800 kJ/mol

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a tightly closed container. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from strong bases.
D2B
Handling
Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Avoid mechanical shock and friction.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.
Stability
Stable under normal shipping and handling conditions. Dusts may form an explosion hazard.
Incompatibilities
Strong oxidizers. Corrosive to mild steel at room temperature.
Decomposition
Carbon monoxide, carbon dioxide, acrid smoke and fumes.

Fire.
Flash Point,°C
196
Autoignition, °C
405
Upper exp. limit, %
9.6
Lower exp. limit, %
1.6
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. Extinguishing media: For small fires, use water spray, dry chemical, carbon dioxide or chemical foam.
Fire potential
Moderately flammable. Slight when exposed to heat or flame.
Hazards
Melts and may decompose to give volatile acidic vapors of valeric acid and other substances. Dust may form explosive mixture with air.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
1
 
Flammability
1
 
 
Reactivity
0
 

Health.
Exposure limit(s)
TLV: 5 mg/m3(as TWA) (ACGHI 1977).
Poison_Class
4
Exposure effects
Human effects not reported. Poisoned animals experience somnolence or seizure activity. Pregnant mice given 263 mg/kg of adipic acid from day 6 to 15 of gestation developed no negative effects on nidation, maternal or fetal survival, or fetal abnormalities.
   Ingestion
Ingestion of large amounts may cause gastrointestinal irritation. Expected to be a low ingestion hazard.
   Inhalation
May cause respiratory tract irritation. Low hazard for usual industrial handling.
   Skin
May cause skin irritation.
   Eyes
May cause severe eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
9077
Response guide
Hazard class
9.2
USCG CHRIS Code
ADA
 
HS Code
2917 12 10
 
Std. Transport #
4966111