Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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Trimellitic anhydride(552-30-7)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
Trimellitic anhydride
Synonyms
1,2,4-Benzenetricarboxylic anhydride
1,3-Dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid
1,3-Dioxo-2-benzofuran-5-carboxylic acid
Anhydrotrimellic acid
Benzene-1,2,4-tricarboxylic acid 1,2-anhydride
CAS
552-30-7
Formula
C9H4O5
Molecular Weight
192.13
EINECS
209-008-0
RTECS
DC2050000
RTECS Class
Other
Merck
12,9833
Beilstein/Gmelin
9394
Beilstein Reference
5-18-08-00312
EC Index Number
607-097-00-4
EC Class
Irritant; Sensitising

Physical and Chemical Properties

Appearance
Crystals or off-white flakes.
Solubility in water
216 g/L
Melting Point
162 - 165
Boiling Point
471
Vapor Pressure
1.2E-9 (25 C)
Density
1.55 g/cm3 (20 C)
Partition Coefficient
1.07
Heat Of Vaporization
77.2 kJ/mol
Usage
In prepn of resins, adhesives, polymers, dyes, printing inks.
Vapor Density
6.6

First Aid Measures

Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately. Wash mouth out with water.
Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Wash thoroughly after handling. Avoid contact with skin and eyes. Do not ingest or inhale. Use only in a chemical fume hood.

Hazards Identification

Inhalation
Causes respiratory tract irritation. May cause severe allergic respiratory reaction. May cause anemia. Similar compounds have caused asthma, cough, wheezing, shortness of breath, anemia, weakness chills, fever, aching muscles and joints. May lead to restrictive lung disease.
Skin
Causes skin irritation. Causes redness and pain.
Eyes
Causes eye irritation. Causes redness and pain.
Ingestion
May cause irritation of the digestive tract. May cause nausea and vomiting.
EC Risk Phrase
R 37 41 42/43
EC Safety Phrase
S 22 26 36/37/39
UN (DOT)
3335

Exposure Controls/Personal Protection

Personal 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 protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
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.
Exposure Effects
Chronic inhalation may cause effects similar to those of acute inhalation.
Exposure limit(s)
TLV: 0.005 ppm; 0.04 mg/m3 (ACGIH 1992-1993). NIOSH REL: TWA 0.005 ppm (0.04 mg/m3) Should be handled in the workplace as an extremely toxic substance.
Poison Class
-

Fire Fighting Measures

Flash Point
227
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.
Upper exp. limit
7
Lower exp. limit
1
Fire Potential
This chemical is combustible.

Accidental Release Measures

Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container.

Stability and Reactivity

Disposal Code
4
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents, strong acids, strong bases.
Decomposition
Carbon monoxide, carbon dioxide.

Transport Information

UN Number
3335
HS Code
2917 39 80
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