Potassium chloride , Analysis of standard products, K (99.97%)/CL (100.00%) , 7447-40-7

Synonym(s):
Potassium chloride;KCl;Potassium chloride solution;CLK;CLK1

CAS NO.：7447-40-7

Empirical Formula: ClK

Molecular Weight: 74.55

MDL number: MFCD00011360

EINECS: 231-211-8

PRODUCT Properties

• Melting point: 770 °C (lit.)
• Boiling point: 1420°C
• Density: 1.98 g/mL at 25 °C (lit.)
• refractive index: n20/D 1.334
• Flash point: 1500°C
• storage temp.: 2-8°C
• solubility: H₂O: soluble
• form: random crystals
• Specific Gravity: 1.984
• color: White
• Odor: Odorless
• PH Range: 7
• PH: 5.5-8.0 (20℃, 50mg/mL in H2O)
• Water Solubility: 340 g/L (20 ºC)
• Sensitive: Hygroscopic
• λmax: λ: 260 nm Amax: 0.02; λ: 280 nm Amax: 0.01
• Crystal Structure: NaCl type
• crystal system: Cube
• Merck: 14,7621
• Sublimation: 1500 ºC
• BRN: 1711999
• Space group: Fm3m
• Lattice constant:
  • a/nm: 0.6293
  • b/nm: 0.6293
  • c/nm: 0.6293
  • α/o: 90
  • β/o: 90
  • γ/o: 90
  • V/nm3: 0.2492
• Dielectric constant: 4.6（Ambient）
• BCS Class: 1
• Stability: Stable. Incompatible with strong oxidizing agents, strong acids. Protect from moisture. Hygroscopic.
• InChIKey: WCUXLLCKKVVCTQ-UHFFFAOYSA-M

Description and Uses

Potassium chloride (KCl) is a metal halide salt that is used in a variety of areas. The dominant application of potassium chloride is to serve as a fertilizer, which offers potassium to plants and prevents them from certain diseases. Besides, it can be applied in food and medical industry. As a treatment for hypokalemia, potassium chloride pills are taken to balance the blood's potassium levels and prevent potassium deficiency in the blood. In food industry, it serves as a electrolyte replenisher and a good salt substitute for food, as well as a firming agent to give consistent texture to food, thus to strengthen its structure.

1. Potassium chloride is a widely used reagent in biochemistry and molecular biology. It is a component of phosphate buffered saline (PBS, Product No. P 3813) and of polymerase chain reaction (PCR) buffer (50 mM KCl).
2. KCl is also used in studies of ion transport and potassium channels.
3. KCl is also utilized in the solubilization, extraction, purification, and crystallization of proteins.
4. The use of KCl in the crystallization of histone core octamers has been reported.

Safety

• Symbol(GHS): GHS08
• Signal word: Danger
• Hazard statements: H303
• Precautionary statements: P201-P308+P313
• Hazard Codes: Xi,C,F,Xn,T
• Risk Statements: 36-34-11-36/37/38-40-61-60
• Safety Statements: 24/25-39-26-22-23-45-36/37/39-16-36/37-53
• RIDADR: UN 1824 8 / PGII
• WGK Germany: 1
• RTECS: TS8050000
• F: 8
• TSCA: Yes
• HS Code: 31042090
• Toxicity: LD50 orally in Rabbit: 2600 mg/kg