Product Identification

Product Name

2,6,6-Trimethyl-2-cyclohexene-1,4-dione

Synonyms

2,6,6-Trimethylcyclohex-2-ene-1,4-dione
2-Cyclohexene-1,4-dione, 2,6,6-trimethyl-
4-Oxoisophorone
Oxopholone

CAS

1125-21-9

Formula

C9H12O2

Molecular Weight

152.19

EINECS

214-406-2

Beilstein/Gmelin

2207030

Beilstein Reference

4-07-00-02032

Physical and Chemical Properties

Appearance

Yellow - green.

Solubility in water

Insoluble

Melting Point

15

Boiling Point

214

Vapor Pressure

0.16 (25 C)

Density

1.03 g/cm3

Partition Coefficient

.76

Heat Of Vaporization

45.1 kJ/mol

Refractive Index

1.49 (20 C)

First Aid Measures

Ingestion

Get medical aid. Wash mouth out with water.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. 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.

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

Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container.

Handling

Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.

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

Causes skin irritation.

Eyes

Causes eye irritation.

EC Risk Phrase

R 22 36/38

EC Safety Phrase

S 26 36/37/39

Exposure Controls/Personal Protection

Personal Protection

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

94

Autoignition

460

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. Extinguishing media: Do NOT use water directly on fire. Use foam, dry chemical, or carbon dioxide.

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Vacuum or sweep up material and place into a suitable disposal container.

Stability and Reactivity

Disposal Code

3

Stability

No data.

Incompatibilities

Strong oxidizing agents.

Decomposition

Carbon monoxide, carbon dioxide.

Transport Information

HS Code

2914 29 00