Product Identification

Product Name

1,2,4,5-Benzenetetracarboxylic acid

Synonyms

1,2,4,5-Benzenetetracarboxylic acid
1,2,4,5-Tetracarboxybenzene
Benzene-1,2,4,5-tetracarboxylic acid

CAS

89-05-4

Formula

C10H6O8

Molecular Weight

254.15

EINECS

201-879-5

RTECS

DB9275000

RTECS Class

Other

Merck

12,8188

Beilstein/Gmelin

1887659

Beilstein Reference

4-09-00-03804

EC Class

irritant

Physical and Chemical Properties

Appearance

Solid.

Solubility in water

Very soluble

Melting Point

272

Boiling Point

516

Vapor Pressure

1.5E-14 (25 C)

Density

1.79 g/cm3 (20 C)

pKa/pKb

1.87 (pKa)

Partition Coefficient

.26

Heat Of Combustion

-3255 kJ/mol

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

Ingestion

The toxicological properties of this substance have not been fully investigated.

Inhalation

Causes respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. 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.

EC Risk Phrase

R 36

EC Safety Phrase

S 24/25

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.

Fire Fighting Measures

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

7.8

Lower exp. limit

1.2

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions.

Stability and Reactivity

Disposal Code

4

Stability

No data.

Incompatibilities

Strong oxidizing agents - strong bases.

Decomposition

Carbon monoxide, carbon dioxide.

Transport Information

HS Code

2917 39 80