Product Identification

Product Name

Cesium bromide

CAS

7787-69-1

Formula

BrCs

Formula

CsBr

Molecular Weight

212.81

EINECS

232-130-0

RTECS

FK9275000

RTECS Class

Other

Merck

13,2019

Beilstein/Gmelin

13639 (G)

Physical and Chemical Properties

Appearance

white cubic crystals, hygroscopic

Solubility in water

Freely soluble

Melting Point

636

Boiling Point

1300

Vapor Pressure

141.5 (1103 C)

Density

4.46 g/cm3

Heat Of Vaporization

Usage

Substance is used in x-ray fluorescent screens, spectrometer prisms, absorption-cell windows.

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. Get medical aid if cough or other symptoms appear.

Skin

Get medical aid if irritation develops or persists. Rinse area with large amounts of water for at least 15 minutes.

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.

Handling

Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Ingestion

May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated. Cesium is similar to potassium in its elemental state. It has been shown to have physiological action in experimentation with animals. Hyper-irritability, includingmarked spasms, has been shown to follow the administration of cesium in the diet of rats.

Inhalation

May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

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

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. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Accidental Release Measures

Small spills/leaks

Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.

Stability and Reactivity

Disposal Code

28

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents - strong acids, halogens. .

Decomposition

Hydrogen bromide.

Transport Information

HS Code

2827 59 00