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CYCLOHEXANEDICARBOXYLIC ACID ANHYDRIDEICSC: 1643
November 2006
CAS #: 85-42-7Hexahydrophthalic anhydride
Cyclohexane-1,2-dicarboxylic acid anhydride
1,3-Isobenzofurandione, hexahydro-
Hexahydro-isobenzofuran-1,3-dione
HHPA
EINECS #: 201-604-9

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire.    NO open flames.    Use water in large amounts.   

 AVOID ALL CONTACT!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Wheezing.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes Redness. Pain.  Wear face shield or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Sore throat. Burning sensation. Abdominal pain. Diarrhoea.  Do not eat, drink, or smoke during work.  Rinse mouth. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. 

According to UN GHS Criteria

cancer;health haz
DANGER
May cause allergic skin reaction
Causes serious eye irritation
Causes skin irritation
Harmful to aquatic life 

Transportation
UN Classification
 

STORAGE
Dry. Store in an area without drain or sewer access. 
PACKAGING
 
CYCLOHEXANEDICARBOXYLIC ACID ANHYDRIDE ICSC: 1643
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
SOLID IN VARIOUS FORMS. 

Physical dangers
 

Chemical dangers
Decomposes slowly on contact with water. This produces acid. 

Formula: C8H10O3
Molecular mass: 154.2
Boiling point: 296°C
Melting point: 35-36°C
Solubility in water: reaction
Vapour pressure, Pa at 25°C: 0.9
Relative vapour density (air = 1): 5.3
Octanol/water partition coefficient as log Pow: 21.4  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation. 

Effects of short-term exposure
The substance is substance irritating to the skin. The substance is severely irritating to the eyes. 

Inhalation risk
 

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation may cause asthma. 


Occupational exposure limits
TLV: 0.005 mg/m3 (ceiling value); (SEN).
MAK sensitization of respiratory tract (SA) 

ENVIRONMENT
The substance is harmful to aquatic organisms. 

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. 

ADDITIONAL INFORMATION
  EC Classification
Note: C; Symbol: Xn; R: 41-42/43; S: (2)-23-24-26-37/39 

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    See Also:
       Toxicological Abbreviations