Product Identification

Product Name

Phosphorous acid tris(1-methylethyl) ester

Synonyms

Phosphorous acid, tris(1-methylethyl) ester
Triisopropoxyphosphine
Tripropan-2-yl phosphite

CAS

116-17-6

Formula

C9H21O3P

Molecular Weight

208.27

EINECS

204-130-0

RTECS

TH2800000

RTECS Class

Mutagen

Beilstein/Gmelin

1701528

Beilstein Reference

4-01-00-01476

Physical and Chemical Properties

Appearance

Clear to slightly turbid liquid.

Solubility in water

Decomposes

Boiling Point

63

Density

0.9361 g/cm3 (0 C)

Usage

Intermediate for insecticides, component of vinyl stabilizers, lubricant additive, specialty solvent.

Vapor Density

7.18

Refractive Index

1.4135 (20 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 immediately.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

Skin

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.

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

Handling

Wash thoroughly after handling. 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. Use with adequate ventilation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.

Hazards Identification

Ingestion

Harmful if swallowed. May cause digestive tract disturbances.

Inhalation

Vapor or mist is irritating to the mucous membranes and upper respiratory tract.

Skin

Causes skin irritation.

Eyes

Causes eye irritation.

Hazards

When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.

EC Risk Phrase

R 10 36/38 40

EC Safety Phrase

S 26 36/37/39

UN (DOT)

2810

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.

Poison Class

4

Fire Fighting Measures

Flash Point

73

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use water spray to keep fire-exposed containers cool. Combustible Liquid. Containers may explode when heated. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use water spray to cool fire-exposed containers.

Fire Potential

Combustible material: may burn but does not ignite readily.

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Provide ventilation.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, strong bases.

Decomposition

Phosphine, carbon monoxide, oxides of phosphorus, carbon dioxide.

Combustion Products

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

Transport Information

UN Number

2810

Hazard Class

6.1

Packing Group

I; II; III