Product Identification

Product Name

Potassium chloride

Synonyms

Chlorvescent
Klotrix
Potassium monochloride
Potassium muriate

CAS

7447-40-7

Formula

ClK

Molecular Weight

74.55

EINECS

231-211-8

RTECS

TS8050000

RTECS Class

Mutagen; Human Data; Primary Irritant

Merck

12,7783

Beilstein/Gmelin

10742 (G)

Physical and Chemical Properties

Appearance

Colorless or white crystals, odorless, hygroscopic.

Solubility in water

Soluble

Melting Point

773

Boiling Point

1420

Density

1.98 g/cm3

Usage

In photography, in buffer soln, electrode cells.

Saturation Concentration

Approximately zero

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. Wash clothing before reuse.

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 tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protected from moisture.

Handling

Avoid prolonged or repeated contact with skin. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse. Keep from contact with moist air and steam.

Hazards Identification

Ingestion

Ingestion of large amounts may cause gastrointestinal irritation. May cause gastric disturbances and electrolytic imbalance.

Inhalation

Dust is irritating to the respiratory tract. Low hazard for usual industrial handling.

Skin

May cause skin irritation.

Eyes

Dust may cause mechanical irritation.

Hazards

Flammability data is not available, but this compound is probably nonflammable.

EC Risk Phrase

R 36/37/38

EC Safety Phrase

S 26 36

UN (DOT)

1463

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

5

Fire Fighting Measures

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Material will not burn. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use extinguishing media appropriate to the surrounding fire. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Fire Potential

These substances will accelerate burning when involved in a fire.

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

Disposal Code

14

Incompatibilities

May react violently with bromine trifluoride. May result in explosion with potassium permanganate and sulfuric acid.

Stability

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

Decomposition

Chlorine, irritating and toxic fumes and gases, potassium fume.

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

1463

Hazard Class

5.1

Packing Group

II

HS Code

3104 20 90