Product Identification

Product Name

Ethylene glycol bis(mercaptoacetate)

Synonyms

Acetic acid, mercapto, ethylene ester
Ethylene bis(thioglycolate)
Ethylene glycol bis(thioglycolate)
Ethylene mercaptoacetate
GDMA
Glycol bis(mercaptoacetate)

CAS

123-81-9

Formula

C6H10O4S2

Molecular Weight

210.27

EINECS

204-653-4

RTECS

AI6600000

RTECS Class

Other

Beilstein/Gmelin

1948305

EC Class

harmful, dangerous for the environment

Physical and Chemical Properties

Appearance

Clear, colorless liquid. With a stench.

Solubility in water

20 g/L (20 C)

Boiling Point

137

Density

1.31 g/cm3

Vapor Density

7.25

First Aid Measures

Ingestion

Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or 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. Wash clothing before reuse.

Eyes

Immediately 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

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Do not expose to air. Store under an inert atmosphere.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Do not ingest or inhale. Use with adequate ventilation. Handle under an inert atmosphere. Store protected from air.

Hazards Identification

Inhalation

Causes respiratory tract irritation. May be harmful if inhaled. Can produce delayed pulmonary edema.

Skin

Causes skin irritation. May be harmful if absorbed through the skin.

Eyes

Causes eye irritation. May cause chemical conjunctivitis.

Ingestion

Harmful if swallowed. May cause gastrointestinal irritation with nausea, vomiting and diarrhea.

Hazards

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

EC Risk Phrase

R 22 51/53

EC Safety Phrase

S 61

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

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

Prolonged or repeated skin contact may cause dermatitis. Effects may be delayed.

Poison Class

2

Fire Fighting Measures

Flash Point

147

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. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

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. Provide ventilation. Place under an inert atmosphere.

Stability and Reactivity

Disposal Code

6

Incompatibilities

Air, strong bases, strong oxidizing agents.

Stability

Stable under normal temperatures and pressures. May discolor on exposure to air.

Decomposition

Carbon monoxide, oxides of sulfur, 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

HS Code

2930 90 70