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Homophthalic acid(89-51-0)

Homophthalic acid(89-51-0)
Product IdentificationBack to Contents
【Product Name】

Homophthalic acid
【Synonyms】

(2-Carboxyphenyl)acetic acid
(o-Carboxymethyl)benzoic acid
2-Carboxybenzeneacetic acid
a-Carboxy-o-toluic acid
o-Carboxybenzeneacetic acid
Toluene-a,2-dicarboxylic acid
【CAS】

89-51-0
【Formula】

C9H8O4
【Molecular Weight】

180.16
【EINECS】

201-913-9
【RTECS】

CY1575590
【RTECS Class】

Other
【Beilstein/Gmelin】

1872069
【Beilstein Reference】

4-09-00-03343
Physical and Chemical PropertiesBack to Contents
【Appearance】

Slightly yellow solid.
【Solubility in water】

Very soluble
【Melting Point】

278
【Density】

1.41 g/cm3
【pKa/pKb】

3.58 (pKa)
【Partition Coefficient】

1.09
First Aid MeasuresBack to Contents
【Ingestion】

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
【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 StorageBack to Contents
【Storage】

Store in a cool, dry place. Store in a tightly closed container.
【Handling】

Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with skin and eyes. Avoid ingestion and inhalation.
Hazards IdentificationBack to Contents
【Ingestion】

Low hazard for usual industrial handling.
【Inhalation】

Dust is irritating to the respiratory tract.
【Skin】

Causes skin irritation.
【Eyes】

Causes eye irritation.
【EC Risk Phrase】

R 36/37/38
【EC Safety Phrase】

S 26 36
Exposure Controls/Personal ProtectionBack to Contents
【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 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.
Fire Fighting MeasuresBack to Contents
【Flash Point】

190
【Autoignition】

505
【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.
Accidental Release MeasuresBack to Contents
【Small spills/leaks】

Vacuum or sweep up material and place into a suitable disposal container.
Stability and ReactivityBack to Contents
【Stability】

Stable under normal temperatures and pressures.
【Incompatibilities】

Strong oxidizing agents.
【Decomposition】

Carbon monoxide, carbon dioxide.
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