Product Identification

Product Name

Pentyl butyrate

Synonyms

Butanoic acid, pentyl ester
Pentyl butanoate
Pentyl butyrate

CAS

540-18-1

Formula

C9H18O2

Molecular Weight

158.24

EINECS

208-739-2

RTECS

ET5956000

RTECS Class

Other

Merck

12,645

Beilstein/Gmelin

1752307

Beilstein Reference

4-02-00-00790

Physical and Chemical Properties

Appearance

A colorless liquid.

Solubility in water

Insoluble

Melting Point

-73.2

Boiling Point

185

Vapor Pressure

0.61 (25 C)

Density

0.8832 g/cm3 (0 C)

Partition Coefficient

3.37

Heat Of Vaporization

42.4 kJ/mol

Usage

Used to make plastics.

Refractive Index

1.4118 (15 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

Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.

Handling

All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification

Inhalation

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

Skin

May irritate or burn. May cause toxic effects if absorbed through the skin.

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. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

UN (DOT)

2620

Exposure Controls/Personal Protection

Personal Protection

Wear appropriate chemical protective gloves, boots and goggles. If contact with the material anticipated, wear appropriate chemical protective clothing.

Respirators

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

Exposure Effects

The toxological properties of this substance have not been fully investigated.

Poison Class

4

Fire Fighting Measures

Flash Point

42

Fire Fighting

Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Solid streams of water may be ineffective. Cool all affected containers with flooding quantities of water. Use alcohol foam, dry chemical or carbon dioxide. Keep run-off water out of sewers and water sources.

Fire Potential

HIGHLY FLAMMABLE.

Accidental Release Measures

Small spills/leaks

Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors.

Stability and Reactivity

Stability

No data.

Incompatibilities

Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products.

Combustion Products

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

Transport Information

UN Number

2620

Hazard Class

3

Packing Group

III