Product Identification

Product Name

1,1-Dimethylpropargylamine

Synonyms

1,1-Dimethyl-2-propyn-1-amine
1,1-Dimethylpropargylamine
2-Methylbut-3-yn-2-amine
3-Amino-3-methylbutyne

CAS

2978-58-7

Formula

C5H9N

Molecular Weight

83.15

EINECS

221-029-7

RTECS

ER9543533

RTECS Class

Primary Irritant

Beilstein/Gmelin

605350

Beilstein Reference

4-04-00-01145

Physical and Chemical Properties

Appearance

Colorless liquid.

Solubility in water

Very soluble

Boiling Point

78 - 80

Vapor Pressure

89 (25 C)

Density

0.79 g/mL (25 C)

pKa/pKb

5.33 (pKb)

Heat Of Vaporization

32.0 kJ/mol

Refractive Index

1.4183 (25 C)

First Aid Measures

Ingestion

Seek medical assistance.

Inhalation

Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.

Skin

Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush with running water for at least 20 minutes. Wash skin with soap and water.

Eyes

In case of contact with substance, immediately flush with running water for at least 20 minutes.

Handling and Storage

Storage

Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Keep away from heat, sparks, and flame. Keep away from sources of ignition. Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area. Keep containers tightly closed.

Hazards Identification

Ingestion

May cause toxic effects.

Inhalation

Vapors may cause dizziness or suffocation. May cause toxic effects.

Skin

Contact with substance may cause severe burns.

Eyes

See Skin.

Hazards

Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.

EC Risk Phrase

10 11 34

EC Safety Phrase

50A 9 16 24/25 33

UN (DOT)

2733

Exposure Controls/Personal Protection

Personal Protection

Wear appropriate protective gloves, clothing and goggles.

Respirators

Wear positive pressure self-contained breathing apparatus (SCBA).

Fire Fighting Measures

Flash Point

2

Fire Fighting

Small Fires: Dry chemical, CO2, water spray or alcohol-resistant foam. Large Fires: Water spray, fog or alcohol-resistant foam.

Fire Potential

Flammable/combustible material. May be ignited by heat, sparks or flames.

Accidental Release Measures

Small spills/leaks

Make no contact with the spilled material. Fully encapsulating, vapor protective clothing should be worn for spills and leaks with no fire. ELIMINATE all ignition sources and ground all equipment. Stop leak if you can do it without risk. A vapor suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean non-sparking tools to collect absorbed material.

Stability and Reactivity

Incompatibilities

Acoid contact with strong oxidizing agents, acids, acid chlorides.

Stability

Stable under normal temperatures and pressures.

Combustion Products

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

Transport Information

UN Number

2733

Hazard Class

3

Packing Group

II