Product Identification

Product Name

1,2-Dithioglycerol

Synonyms

2,3-Dimercaptopropan-1-ol
Antoxol
BAL
British anti-Lewisite
Dicaptol
Dimercaprol propanol

CAS

59-52-9

Formula

C3H8OS2

Molecular Weight

124.22

EINECS

200-433-7

RTECS

UB2625000

RTECS Class

Drug; Mutagen; Reproductive Effector; Human Data; Natural Product

Merck

13,3234

Beilstein/Gmelin

1732058

Beilstein Reference

4-01-00-02770

EC Class

irritant

Physical and Chemical Properties

Appearance

Clear colorless viscous liquid with a pungent offensive odor of mercaptans.

Solubility in water

87 g/L

Melting Point

77

Boiling Point

223

Vapor Pressure

0.02 (25 C)

Density

1.2531 g/cm3 (20 C)

pKa/pKb

8.88 (pKa)

Partition Coefficient

.84

Heat Of Vaporization

53.5 kJ/mol

Usage

Anti-gas warfare agent.

Vapor Density

4.28

Refractive Index

1.5698 (20 C)

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. Refrigerator (approx 4 C). Store protected from light.

Handling

Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Store protected from light. Wash clothing before reuse.

Hazards Identification

Inhalation

May cause respiratory tract irritation. Can produce delayed pulmonary edema.

Skin

Causes skin irritation. May cause contact dermatitis. Irritant dermatitis results from the direct injury to the skin and is characterized by redness and thickening of the affected areas.

Eyes

Causes eye irritation. May cause chemical conjunctivitis.

Ingestion

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

EC Risk Phrase

R 22 36/38

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

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

3

Fire Fighting Measures

Flash Point

89

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

This chemical is probably combustible.

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.

Stability and Reactivity

Disposal Code

6

Incompatibilities

Oxidizing agents, reducing agents, bases, alkali metals.

Stability

Stable under normal temperatures and pressures.

Decomposition

Carbon monoxide, oxides of sulfur, irritating and toxic fumes and gases, carbon dioxide, hydrogen sulfide.

Transport Information

UN Number

2810

HS Code

2930 90 70