Product Identification

Product Name

Tetraisopropyl methylenediphosphonate

Synonyms

2-[Di(propan-2-yloxy)phosphorylmethyl-propan-2-yloxyphosphoryl]oxypropane
Methylenediphosphonic acid tetraisopropyl ester
Phosphonic acid, methylenebis-, tetrakis(1-methylethyl) ester
Tetraisopropyl methylenebisphosphonate

CAS

1660-95-3

Formula

C13H30O6P2

Molecular Weight

344.33

EINECS

216-765-0

Beilstein/Gmelin

1080180

Physical and Chemical Properties

Appearance

Colorless to light yellow liquid with a mild odor.

Solubility in water

Insoluble

Boiling Point

90 - 92 (0.01 torr)

Density

1.08 g/cm3

Vapor Density

11.53

Refractive Index

1.4325 (20 C)

First Aid Measures

Ingestion

Get medical aid. Wash mouth out with water.

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.

Eyes

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower lids. Get medical aid.

Handling and Storage

Storage

Store in a cool, dry place. Store in a tightly closed container.

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

Ingestion

May cause irritation.

Inhalation

May cause irritation.

Skin

May cause irritation.

Eyes

May cause eye irritation and possible damage.

EC Risk Phrase

R 41

EC Safety Phrase

S 26 36/37/39

Exposure Controls/Personal Protection

Personal Protection

Use appropriate protective gloves and clothing. 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.

Respirators

Follow the OSHA respirator regulations found in 29 CFR 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

159

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. In case of 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

Incompatibilities

Keep away from strong oxidizing agents, strong reducing agents, strong acids, strong bases.

Stability

Stable.

Decomposition

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