Product Identification

Product Name

4,4-Dimethyl-1-phenyl-3-pyrazolidone

Synonyms

3-Pyrazolidinone, 4,4-dimethyl-1-phenyl-
4,4-Dimethyl-1-phenyl-3-pyrazolidinone
4,4-Dimethyl-1-phenylpyrazolidin-3-one
4,4-Dimethylphenidone

CAS

2654-58-2

Formula

C11H14N2O

Molecular Weight

190.24

EINECS

220-181-1

RTECS

UQ8710000

RTECS Class

Other

Beilstein/Gmelin

144478

Beilstein Reference

5-24-01-00252

Physical and Chemical Properties

Appearance

White to off-white to pink solid.

Melting Point

172 - 174

Boiling Point

350

Partition Coefficient

.77

Usage

Photographic film developer.

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.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.

Skin

Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.

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 cool, dry, well-ventilated area away from incompatible substances.

Handling

Wash hands before eating. Use with adequate ventilation. Avoid contact with skin and eyes. Avoid ingestion and inhalation.

Hazards Identification

Ingestion

May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.

Inhalation

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

Skin

May cause skin irritation. No information reported.

Eyes

Dust may cause mechanical irritation. No information reported.

EC Risk Phrase

R 25 43

EC Safety Phrase

S 22 36/37 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 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

Flash Point

195

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: For small fires, use water spray, dry chemical, carbon dioxide or chemical foam.

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

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

No data available.

Transport Information

UN Number

2811