Product Identification

Product Name

Cesium carbonate

Synonyms

Dicesium carbonate

CAS

534-17-8

Formula

CCs2O3

Molecular Weight

325.82

EINECS

208-591-9

RTECS

FK9400000

RTECS Class

Mutagen

Merck

13,2020

Beilstein/Gmelin

23963 (G)

Physical and Chemical Properties

Appearance

white monoclinic crystals, hygroscopic

Solubility in water

Soluble

Melting Point

610

Density

4.24 g/cm3 (20 C)

Usage

Catalyst in ethylene oxide polymerization.

First Aid Measures

Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.

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 if irritation develops or persists. Flush skin with plenty of soap and water.

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. Keep container closed when not in use.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Ingestion

May cause cardiac disturbances. The toxicological properties of this substance have not been fully investigated. May cause central nervous system effects and/or neurological effects.

Inhalation

May cause effects similar to those described for ingestion.

Skin

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

Eyes

Has been reported to be noninjurious when applied to rabbit eyes.

EC Risk Phrase

R 36/37/38 40

EC Safety Phrase

S 26 36/37/39

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 gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.

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.

Poison Class

4

Fire Fighting Measures

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. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

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.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, strong acids, moisture.

Decomposition

Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Transport Information

HS Code

2836 99 18