Product Identification

Product Name

2,5-Pyrroledione

Synonyms

1H-Pyrrole-2,5-dione
3-Pyrroline-2,5-dione
Maleic imide
Pyrrole-2,5-dione

CAS

541-59-3

Formula

C4H3NO2

Molecular Weight

97.07

EINECS

208-787-4

RTECS

ON4800000

RTECS Class

Reproductive Effector

Beilstein/Gmelin

106910

Beilstein Reference

5-21-10-00003

EC Class

corrosive

Physical and Chemical Properties

Appearance

White solid.

Solubility in water

Very soluble

Melting Point

90 - 93

Boiling Point

102 - 105 (55 torr)

Density

1.2493 g/cm3 (106 C)

pKa/pKb

8.52 (pKa)

Usage

Used as flexible linking molecules to reinforce rubber.

Refractive Index

1.48775 (110.7 C)

First Aid Measures

Ingestion

Get medical aid. Wash mouth out with water.

Inhalation

Remove from exposure to fresh air immediately.

Skin

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.

Handling and Storage

Storage

Store in a cool, dry place. Store in a tightly closed container.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with skin and eyes. Avoid ingestion and inhalation. Use only in a chemical fume hood.

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.

Skin

Causes skin irritation. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material.

Eyes

Causes eye irritation. Lachrymator. Lachrymator.

Hazards

Contact with metals may evolve flammable hydrogen gas.

EC Risk Phrase

R 25 34

EC Safety Phrase

S 26 28 36/37/39 45

UN (DOT)

2811

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 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.

Fire Potential

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container.

Stability and Reactivity

Disposal Code

3

Stability

Has not been fully evaluated.

Incompatibilities

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

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide.

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

2811

Hazard Class

6.1

Packing Group

I; II; III

HS Code

2925 19 95