Product Identification

Product Name

2-Hydroxy-1,2,3-propanetricarboxylic acid trisodium salt

Synonyms

2-Hydroxy-1,2,3-propanetricarboxylic acid, trisodium salt
Citrosodine
Trisodium 2-hydroxypropane-1,2,3-tricarboxylate

CAS

68-04-2

Formula

C6H5Na3O7

Molecular Weight

258.07

EINECS

200-675-3

RTECS

GE8300000

RTECS Class

Other

Merck

12,8746

Beilstein/Gmelin

3920956

Beilstein Reference

4-03-00-01272

Physical and Chemical Properties

Appearance

White, odorless granules or powder.

Solubility in water

720 g/L

Melting Point

150

Density

1.815 g/cm3 (20 C)

Usage

As a pharmaceutic aid, sodium citrate is used to prevent darkening when iron is added to preparations containing tannin.

First Aid Measures

Ingestion

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.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.

Skin

Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.

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

Store in a cool, dry place. Store in a tightly closed container.

Handling

Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.

Hazards Identification

Ingestion

Ingestion of large amounts may cause gastrointestinal irritation.

Inhalation

May cause respiratory tract irritation.

Skin

May cause skin irritation. No information regarding skin irritation and other potential effects was found.

Eyes

Dust may cause mechanical irritation.

Hazards

Fine dust dispersed in air in sufficient concentrations, and inthe presence of an ignition source is a potential dust explosionhazard.

Exposure Controls/Personal Protection

Personal Protection

Skin: Wear appropriate 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

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, reducing agents, bases.

Decomposition

Carbon monoxide, carbon dioxide.