12636

Potassium chloride

puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, E508, 99-100.5% (AT), ≤0.0001% Al

• Lineáris képlet: KCl
• CAS-szám: 7447-40-7
• Molekulatömeg: 74.55
• EC-szám: 231-211-8
• MDL-szám: MFCD00011360
• UNSPSC kód: 12352302
• PubChem Substance ID: 329749782
• NACRES: NA.21

Tulajdonságok

• grade: puriss.
• Minőségi szint: 200
• Teszt: 99-100.5% (AT)
• form: powder or crystals
• minőség: meets analytical specification of Ph. Eur., BP, USP, FCC, E508
• szennyeződések: acidity or alkalinity, complies; organic volatile impurities, complies (GC); residual solvents, complies; ≤0.0001% Al; ≤0.0005% heavy metals (as Pb); ≤0.003% free acid (as HCl); ≤0.005% free alkali (as KOH); ≤0.02% Mg, alkaline earth metals (as Ca)
• veszteség: ≤0.5% loss on drying, 105 °C, 3 h
• pH: 7
• mp: 770 °C (lit.)
• sűrűség: 1.98 g/mL at 25 °C (lit.)
• anion nyomok: bromide (Br^-): ≤1000 mg/kg; iodide (I^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• kation nyomok: Al: ≤1 mg/kg; As: ≤0.5 mg/kg; Ba:, in accordance; Ca: ≤50 mg/kg; Cd: ≤1 mg/kg; Cu: ≤10 mg/kg; Fe: ≤10 mg/kg; Hg: ≤1 mg/kg; Mg: ≤50 mg/kg; Na: ≤700 mg/kg; Pb: ≤5 mg/kg; Zn: ≤20 mg/kg
• alkalmasság: complies for appearance of solution
• SMILES string: [Cl-].[K+]
• InChI: 1S/ClH.K/h1H;/q;+1/p-1
• Nemzetközi kémiai azonosító kulcs: WCUXLLCKKVVCTQ-UHFFFAOYSA-M

Leírás

Általános leírás

Potassium chloride, an alkali metal halide, is a colorless crystalline salt. Its solubility in water is directly proportional to increase in temperature. It can be prepared from potassium hydroxide, via neutralization reaction with HCl. Calorimetric estimation of the enthalpy of solution of potassium chloride in water has been described.

Alkalmazás

Potassium chloride may be used in the preparation of fertilizer, potassium hydroxide, potassium carbonate and other potassium slats. It may be used in the calorimetric determination of enthalpy and heat capacity values during the deprotonation (loss of proton H⁺) of buffers. From these values temperature dependence of the pH of these buffers was calculated.
Potassium chloride can be used as a fertilizer and as a regenerant to soften water. It has been used a buffer for the separation of major purine metabolites in the heart, using reverse phase ion pair chromatography(RPIPC).

May be used for the preparation of phosphate buffered saline, and for the extraction and solubilization of proteins.

Biztonsági adatok

• Tárolási osztály kódja: 13 - Non Combustible Solids
• WGK: WGK 1
• Lobbanási pont (F): Not applicable
• Lobbanási pont (C): Not applicable