Product Identification

Product Name

2-Hexanone

Synonyms

Hexan-2-one
Methyl n-butyl ketone
n-Butyl methyl ketone
Propylacetone

CAS

591-78-6

Formula

C6H12O

Molecular Weight

100.16

EINECS

209-731-1

RTECS

MP1400000

RTECS Class

Mutagen; Reproductive Effector; Human Data; Primary Irritant

Merck

12,6112

Beilstein/Gmelin

1737676

Beilstein Reference

4-01-00-03298

EC Index Number

606-030-00-6

EC Class

Flammable; Toxic for reproduction Category 3; Toxic; Vapours may cause drowsiness and dizziness

Physical and Chemical Properties

Appearance

A clear colorless liquid.

Solubility in water

14 g/L

Melting Point

-56.9

Boiling Point

127

Vapor Pressure

12

Density

0.812 g/cm3 (20 C)

Partition Coefficient

1.38

Heat Of Vaporization

43.03 kJ/mol

Heat Of Combustion

-3686 kJ/mol

Usage

Solvent for lacquers, ink thinners, nitrocellulose, resins, oils, fats and waxes.

Vapor Density

3.45

Odor threshold

3 ppm

Refractive Index

1.40061 (15 C)

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 immediately.

Handling and Storage

Storage

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

Handling

Wash thoroughly after handling. Use only in a well ventilated area. Ground and bond containers when transferring material. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. 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

Inhalation

Causes respiratory tract irritation. May cause narcotic effects in high concentration. May cause drowsiness, unconsciousness, and central nervous system depression.

Skin

Causes mild skin irritation. May be absorbed through the skin in harmful amounts. Prolonged and/or repeated contact may cause defatting of the skin and dermatitis.

Eyes

Causes mild eye irritation. Causes minor transient corneal injury.

Ingestion

May cause irritation of the digestive tract. May cause central nervous system depression.

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 10 48/23 62 67

EC Safety Phrase

S 36/37 45

UN (DOT)

1224

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.

Exposure Effects

Prolonged or repeated skin contact may cause dermatitis. Chronic exposure produces peripheral neuropathy.

Exposure limit(s)

TLV: 5 ppm; 20 mg/m3 (skin) (ACGIH 1991-1992). OSHA PEL: TWA 100 ppm (410 mg/m3) NIOSH REL: TWA 1 ppm (4 mg/m3) NIOSH IDLH: 1600 ppm

Poison Class

4

Fire Fighting Measures

Flash Point

25

Autoignition

424

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Containers may explode in the heat of a fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Water may be ineffective. For large fires, use water spray, fog or alcohol-resistant foam. Do NOT use straight streams of water.

Upper exp. limit

8

Lower exp. limit

1.2

Fire Potential

This chemical is flammable.

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.

Stability and Reactivity

Incompatibilities

Oxidizing agents, reducing agents, strong bases.

Stability

Stable under normal temperatures and pressures.

Decomposition

Carbon monoxide, carbon dioxide.

Combustion Products

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

Transport Information

UN Number

1224

Hazard Class

3

Packing Group

I; II; III