Product Identification

Product Name

Tributyl borate

Synonyms

Boron tributoxide
Butyl borate
n-Butyl borate
Tributoxyborane
Tributoxyborine
Tri-n-butoxyborane

CAS

688-74-4

Formula

C12H27BO3

Molecular Weight

230.2

EINECS

211-706-5

RTECS

ED4900000

RTECS Class

Primary Irritant

Beilstein/Gmelin

1703865

Beilstein Reference

4-01-00-01544

Physical and Chemical Properties

Appearance

Oil.

Solubility in water

Insoluble

Melting Point

-70

Boiling Point

230

Vapor Pressure

0.1 (25 C)

Density

0.8567 g/cm3 (20 C)

Partition Coefficient

6.23

Heat Of Vaporization

44.8 kJ/mol

Usage

Welding fluxes, intermediate in preparation of borohydrides, flame retardant for textiles (with boric acid).

Vapor Density

7.95

Refractive Index

1.4118 (17 C)

First Aid Measures

Ingestion

Get medical aid. Wash mouth out with water.

Inhalation

Remove from exposure to fresh air immediately.

Skin

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.

Handling and Storage

Storage

Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Keep under a nitrogen blanket.

Handling

Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.

Hazards Identification

Inhalation

May cause respiratory tract irritation.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

Ingestion

May cause irritation of the digestive tract.

EC Risk Phrase

R 36/38

EC Safety Phrase

S 26 36

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear chemical goggles. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear a chemical apron.

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

Significant ingestions or dermal exposures can be associated with weak, rapid pulse, cyanosis and abnormally low blood pressure. The patient may present with reduced body temperature, elevated body temperature or normal body temperature. Headache, lethargy, restlessness, weakness, CNS irritation, and/or seizures may occur with long term or repeated exposures. There is insufficient information concerning the reproductive effects of borates in humans. Adverse testicular effects and infertility have been reported in animals. <br>There have been limited animal studies which suggest decreased ovulation, fetotoxicity and developmental defects may occur with very high exposure levels. Maternal toxicity was present in some studies.

Poison Class

4

Fire Fighting Measures

Flash Point

93

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Can burn in a fire, releasing toxic vapors. 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

No data.

Incompatibilities

Strong oxidizing agents, strong acids, moist air or water.

Decomposition

Carbon monoxide, carbon dioxide, oxides of boron.