Product Identification

Product Name

Ethynyl methyl vinyl carbinol

Synonyms

2-Vinyl-3-butyn-2-ol
3-Methyl-1-penten-4-yn-3-ol
3-Methyl-4-penten-1-yn-3-ol
3-Methylpent-1-en-4-yn-3-ol
3-Methylpent-4-en-1-yn-3-ol

CAS

3230-69-1

Formula

C6H8O

Molecular Weight

96.12

EINECS

221-770-6

RTECS

SB4950000

RTECS Class

Drug

Beilstein/Gmelin

1740552

Beilstein Reference

4-01-00-02309

Physical and Chemical Properties

Appearance

Reddish liquid. Characteristic odor.

Boiling Point

80 - 81 (0.1 torr)

Density

0.8665 g/cm3 (20 C)

pKa/pKb

12.53 (pKa)

Refractive Index

1.4491 (14 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

Harmful if swallowed. May cause irritation of the digestive tract.

Inhalation

Causes respiratory tract irritation. May be harmful if inhaled.

Skin

Causes skin irritation. May be harmful if absorbed through the skin.

Eyes

Causes eye irritation.

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.

Poison Class

4

Fire Fighting Measures

Flash Point

65

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. Combustible Liquid. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, organic peroxides.

Decomposition

Carbon monoxide, carbon dioxide.