Product Identification

Product Name

Huenig's base

Synonyms

2-Propanamine, N-ethyl-N-(1-methylethyl)-
Bis(1-methylethyl)ethylamine
Hunig's reagent
N,N-Diisopropylethylamine
N-Ethyl-N,N-diisopropylamine
N-Ethyl-N-isopropyl-2-propanamine

CAS

7087-68-5

Formula

C8H19N

Molecular Weight

129.25

EINECS

230-392-0

Beilstein/Gmelin

605301

Beilstein Reference

4-04-00-00511

EC Class

highly flammable, harmful, corrosive, dangerous for the environment

Physical and Chemical Properties

Appearance

Colorless liquid. Ammonia-like odor.

Solubility in water

Very soluble

Melting Point

-50

Boiling Point

127

Vapor Pressure

120 (20 C)

Density

0.751 g/cm3 (27 C)

pKa/pKb

3.02 (pKb)

Partition Coefficient

2.35

Heat Of Vaporization

36.4 kJ/mol

Refractive Index

1.4138 (20 C)

First Aid Measures

Ingestion

Do NOT induce vomiting. 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 immediately.

Inhalation

Get medical aid immediately. Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen.

Skin

Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage

Keep away from heat, sparks, and flame. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.

Handling

Wash thoroughly after handling. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.

Hazards Identification

Ingestion

May cause irritation of the digestive tract and possible burns.

Inhalation

May cause severe respiratory tract irritation and possible burns.

Skin

Causes skin irritation and possible burns.

Eyes

Causes eye irritation and possible burns.

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

R 11 20/21/22 34

EC Safety Phrase

S 16 26 36/37/39 45

UN (DOT)

2733

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

9.5

Autoignition

240

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Water may be ineffective. Material is lighter than water and a fire may be spread by the use of water. Containers may explode in the heat of a fire. Extinguishing media: Use water spray to cool fire-exposed containers. Use foam, dry chemical, or carbon dioxide. Water may be ineffective.

Upper exp. limit

6.3

Lower exp. limit

.7

Fire Potential

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

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Remove all sources of ignition. Use a spark-proof tool.

Stability and Reactivity

Disposal Code

5

Incompatibilities

Acids, acid chlorides, acid anhydrides, carbon dioxide, strong oxidizing agents, copper, brass, rubber.

Stability

No data.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide.

Combustion Products

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

Transport Information

UN Number

2733

Hazard Class

3

Packing Group

I; II; III

HS Code

2921 19 80