Product Identification

Product Name

BTDA

Synonyms

1,3-Isobenzofurandione, 5,5'-carbonylbis-
5-(1,3-Dioxo2-benzofuran-5-carbonyl)-2-benzofuran-1,3-dione
Benzophenone-3,3':4,4'-tetracarboxylic dianhydride

CAS

2421-28-5

Formula

C17H6O7

Molecular Weight

322.23

EINECS

219-348-1

Beilstein/Gmelin

761777

EC Index Number

607-100-00-9

EC Class

Irritant

Physical and Chemical Properties

Appearance

odorless light yellow powder solid

Solubility in water

19 g/L (20 C)

Melting Point

220 - 223

Boiling Point

639

Vapor Pressure

3E-16 (25 C)

Density

1.570 g/cm3 (20 C)

Partition Coefficient

1.53

Heat Of Vaporization

94.3 kJ/mol

First Aid Measures

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. Wash mouth out with water.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. Get medical aid.

Skin

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.

Eyes

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage

Store in a tightly closed container. Store protected from moisture. Store under nitrogen. Store in a cool, dry area away from incompatible substances.

Handling

Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Do not allow contact with water. Wash clothing before reuse. Keep from contact with moist air and steam.

Hazards Identification

Ingestion

May cause irritation of the digestive tract. 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.

Skin

May cause skin irritation.

Eyes

Causes eye irritation.

EC Risk Phrase

R 36/37

EC Safety Phrase

S 25

UN (DOT)

3261

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

A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use. 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

Flash Point

324

Autoignition

505

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Do NOT use water directly on fire. Use foam, dry chemical, or carbon dioxide. Do NOT get water inside containers.

Accidental Release Measures

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. Do not get water inside containers.

Stability and Reactivity

Disposal Code

4

Stability

Stable under normal temperatures and pressures. May decompose on exposure to moist air or water.

Incompatibilities

Strong oxidizing agents, strong acids, strong bases, moisture.

Decomposition

Carbon monoxide, carbon dioxide.

Transport Information

UN Number

3261

HS Code

2918 30 00