Potassium chloride

  • Potassium monochloride
  • Potassium muriate
Formula
KCl
Structure
Description
Colorless or white crystals, odorless, hygroscopic.
Uses
In photography, in buffer soln, electrode cells.

Registry Numbers and Inventories.
CAS
7447-40-7
EC (EINECS/ELINCS)
231-211-8
R 36/37/38
RTECS
TS8050000
RTECS class
Mutagen; Human Data; Primary Irritant
UN (DOT)
1463
Merck
12,7783
Beilstein/Gmelin
10742 (G)
Swiss Giftliste 1
G-4554
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
ClK
Formula mass
74.55
Melting point, °C
773
Boiling point, °C
1420
Saturation Concentration
Approximately zero
Density
1.98 g/cm3
Solubility in water
Soluble

Hazards and Protection.
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.
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.
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.
Disposal code
14
Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
Incompatibilities
May react violently with bromine trifluoride. May result in explosion with potassium permanganate and sulfuric acid.
Decomposition
Chlorine, irritating and toxic fumes and gases, potassium fume.

Fire.
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.
Hazards
Flammability data is not available, but this compound is probably nonflammable.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
1
 
Flammability
0
 
 
Reactivity
0
 

Health.
Poison_Class
5
Exposure effects
   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.

First aid
 
   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.

Transport.
UN number
1463
Response guide
Hazard class
5.1
Packing Group
II
 
USCG CHRIS Code
PCS
 
43 Misc. water solutions
HS Code
3104 20 90
 
IMO Chemical Code
17
IMO Pollution Category
C
IMO Hazard code
P