Product Identification

Product Name

Dimethyl 2-hydroxyethylphosphonate

Synonyms

2-Dimethoxyphosphorylethanol
Phosphonic acid, (2-hydroxyethyl)-, dimethyl ester

CAS

54731-72-5

Formula

C4H11O4P

Molecular Weight

154.1

EINECS

259-310-1

Beilstein/Gmelin

1759942

Beilstein Reference

4-04-00-03584

Physical and Chemical Properties

Appearance

Odorless colorless liquid

Boiling Point

98 - 104 (0.1 torr)

Density

1.2339 g/cm3 (20 C)

Refractive Index

1.441 (19.5 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 eyelids. Get medical aid.

Handling and Storage

Storage

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

Handling

Use only in a well ventilated area. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.

Hazards Identification

Ingestion

Harmful if swallowed. Symptoms of quinine overdose can include loss of visual acuity, narrowing of the field of vision, partial to complete blindness, loss of light sensitivity, dilation of the pupils with no response to light, and partial to complete loss of hearing. The natural course is for some spontaneous recovery to occur, but the recovery may not be complete. (Grant and Schuman, Toxicology of the Eye, 4th

Inhalation

Harmful if inhaled. Causes respiratory tract irritation.

Skin

Causes skin irritation. Harmful if absorbed through the skin.

Eyes

Causes eye irritation.

Exposure Controls/Personal Protection

Personal Protection

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.

Fire Fighting Measures

Flash Point

75

Autoignition

409

Fire Fighting

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

Decomposition

Carbon monoxide, oxides of phosphorus, carbon dioxide.