Product Identification

Product Name

Di(2-ethylhexyl) phosphate

Synonyms

bis(2-Ethylhexyl) hydrogen phosphate
bis(2-ethylhexyl) phosphate
Dioctyl acid phosphate
HDEHP
Phosphoric acid di(2-ethylhexyl) ester
TOPS 99

CAS

298-07-7

Formula

C16H35O4P

Molecular Weight

322.43

EINECS

206-056-4

RTECS

TB7875000

RTECS Class

Primary Irritant

Beilstein/Gmelin

1712988

Beilstein Reference

4-01-00-01786

EC Class

harmful, corrosive

Physical and Chemical Properties

Appearance

Odorless light yellow liquid.

Solubility in water

Insoluble

Melting Point

-50

Boiling Point

393

Vapor Pressure

3E-7 (25 C)

Density

0.9758 g/cm3 (20 C)

pKa/pKb

1.47 (pKa)

Partition Coefficient

6.09

Heat Of Vaporization

70.6 kJ/mol

Heat Of Combustion

-10464 kJ/mol

Usage

Additive to lubrication oils, corrision inhibitor and antioxidant.

Vapor Density

11.46

Refractive Index

1.443 (20 C)

First Aid Measures

Ingestion

Do NOT induce vomiting. 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

Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Do not use mouth-to-mouth respiration if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device.

Skin

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

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed. Extensive irrigation is required (at least 30 minutes).

Handling and Storage

Storage

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Avoid ingestion and inhalation. Do not ingest or inhale. Discard contaminated shoes.

Hazards Identification

Inhalation

Causes chemical burns to the respiratory tract. Aspiration may lead to pulmonary edema. May cause systemic effects.

Skin

Causes skin burns. May be harmful if absorbed through the skin. May cause skin rash (in milder cases), and cold and clammy skin with cyanosis or pale color.

Eyes

Causes eye burns. May cause chemical conjunctivitis and corneal damage.

Ingestion

May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns. May cause perforation of the digestive tract. May cause systemic effects.

Hazards

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

EC Risk Phrase

R 21 34

EC Safety Phrase

S 26 36/37/39 45

UN (DOT)

1902

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

A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.

Exposure Effects

Effects may be delayed.

Poison Class

2

Fire Fighting Measures

Flash Point

191

Autoignition

> 300

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Extinguishing media: Do NOT get water inside containers. For large fires, use dry chemical, carbon dioxide, alcohol-resistant foam, or water spray. For small fires, use carbon dioxide, dry chemical, dry sand, or alcohol-resistant foam. Cool containers with flooding quantities of water until well after fire is out.

Fire Potential

Slight risk when exposed to heat or flame. May form flammable hydrogen gas.

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. Provide ventilation. Do not get water inside containers.

Stability and Reactivity

Disposal Code

1

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, metals.

Decomposition

Phosphorous fumes.

Combustion Products

Irritating phosphorus oxides may be released.

Transport Information

UN Number

1902

Hazard Class

8

Packing Group

III

HS Code

2919 00 90