Product Identification

Product Name

1,2-Ethanedicarboxylic acid

Synonyms

1,2-Ethanedicarboxylic acid
Amber acid
Butanedioic acid
Dihydrofumaric acid
Ethylenesuccinic acid
Wormwood acid

CAS

110-15-6

Formula

C4H6O4

Molecular Weight

118.09

EINECS

203-740-4

RTECS

WM4900000

RTECS Class

Mutagen; Primary Irritant

Merck

12,9038

Beilstein/Gmelin

1754069

Beilstein Reference

4-02-00-01908

EC Class

irritant

Physical and Chemical Properties

Appearance

White crystals or shiny white odorless crystalline powder. Very acid taste.

Solubility in water

Very soluble

Boiling Point

235

Vapor Pressure

0.017 (25 C)

Density

1.624 g/cm3 (-143 C)

pKa/pKb

4.24 (pKa)

Partition Coefficient

-.59

Heat Of Vaporization

52.1 kJ/mol

Heat Of Combustion

-1492 kJ/mol

Usage

Manufacture lacquers, dyes, esters for perfumes, succinates, in photography.

Refractive Index

1.45 (20 C)

First Aid Measures

Ingestion

Never give anything by mouth to an unconscious person. Get medical aid immediately. 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 immediately.

Handling and Storage

Storage

Store in a tightly closed container. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. May form flammable dust-air mixtures. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Wash clothing before reuse.

Hazards Identification

Inhalation

Causes respiratory tract irritation. Can produce delayed pulmonary edema.

Skin

Causes skin irritation. Contact with heated material can cause skin burns and irritation.

Eyes

Causes eye irritation. May cause chemical conjunctivitis.

Ingestion

May cause gastrointestinal irritation with nausea, vomiting and diarrhea.

EC Risk Phrase

R 36/37/38

EC Safety Phrase

S 26 36

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. 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.

Exposure Effects

Effects may be delayed.

Poison Class

5

Fire Fighting Measures

Flash Point

111

Autoignition

470

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dusts at sufficient concentrations can form explosive mixtures with air. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: For small fires, use water spray, dry chemical, carbon dioxide or chemical foam. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Upper exp. limit

14.4

Lower exp. limit

2.6

Fire Potential

This material is probably combustible.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Incompatibilities

Reacts exothermically to neutralize bases, both organic and inorganic Can react with active metals to form gaseous hydrogen and a metal salt Reacts slowly with cyanide salts to generate gaseous hydrogen cyanide Reacts with solutions of cyanides to cause the release of gaseous hydrogen cyanide May react with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), to generate flammable and/or toxic gases and heat.

Stability

Stable at room temperature in closed containers under normal storage and handling conditions.

Decomposition

Carbon monoxide, carbon dioxide.

Transport Information

HS Code

2917 19 90