Potassium Chloride, USP Grade – Lab Alley

Potassium Chloride, USP Grade

Potassium Chloride, USP Grade
Brand: Lab Alley

Select Size:

SKU: C6321-125g
Potassium Chloride USP, 125g
SKU: C6321-250g
Potassium Chloride USP, 250g
SKU: C6321-500g
Potassium Chloride USP, 500g

Potassium Chloride | USP Grade | Formula KCl | Metal Halide Salt | White Or Colorless Crystal/Powder | For Water Softeners, Supplements, Plants, Food Processing, Fertilizer, Medical Use, Culinary Use, Industrial Use | CAS # 7440-09-7 | Lab Grade

Potassium Chloride Powder Product Summary

For Sale Online | USP Grade | Formula KCl | Metal Halide Salt | White Or Colorless Crystal | For Nutrient Supplements, Water Softening, Dogs, Plants, Flavor Enhancer, Flavoring Agent, pH Control, Food Processing, Fertilizer, Medical Use, Culinary Use, Industrial Use, Vaccines, Animal Feed Supplement, Medicine, Water Treatment, Agriculture, Aquaculture, Heart Failure, Hypertension, COPD, Hypokalemia, Gout, Dehydration, Leg Cramps, Edema, Oral Solution & Diabetes  | CAS # 7440-09-7

Potassium Chloride Chemical Properties

  • Potassium Chloride CAS Registry Number: 7447-40-7
  • Potassium Chloride Formula: KCl
  • Potassium Chloride Molar Mass: 74.5513 g/mol
  • Potassium Chloride Formula: KCl
  • Potassium Chloride Melting Point: 1,418°F (770°C)
  • Potassium Chloride Boiling point: 2,588°F (1,420°C)
  • Potassium Chloride Density: 1.98 g/cm³
  • Potassium Chloride Is Soluble In: Water, Glycerol

Potassium Chloride USP Features:

CAS Number 7447-40-7
Molecular Formula KCl
Formula Weight 74.55
Assay (KCl) 99.0-100.5%
Acidity or Alkalinity To Pass Test
Loss on Drying 1.0%
Iodide or Bromide To Pass Test
Calcium and Magnesium To Pass Test
Sodium To Pass Test
Heavy Metals 0.001%
Organic Volatile Impurities To Pass Test


Please contact us to request a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for Potassium Chloride USP.

Potassium Chloride Uses - Benefits and Dangers [YouTube Video]


Information On Potassium Chloride From Wikipedia

Potassium chloride (also known as KCl or potassium salt) is a metal halide salt composed of potassium and chlorine. It is odorless and has a white or colorless vitreous crystal appearance. The solid dissolves readily in water, and its solutions have a salt-like taste. KCl is used as a fertilizer, in medicine, in scientific applications, and in food processing, where it may be known as E number additive E508. In a few states of the United States, it is used to cause cardiac arrest, as the third drug in the "three drug cocktail" for executions by lethal injection. It occurs naturally as the mineral sylvite, and in combination with sodium chloride as sylvinite.

The majority of the potassium chloride produced is used for making fertilizer, called potash, since the growth of many plants is limited by potassium availability. The two main types of potash are muriate of potash (MOP, potassium chloride) and sulphate of potash (SOP, potassium sulphate). While SOP typically sells at a premium to MOP, the vast majority of potash fertilizer worldwide is sold as MOP.

Medical use
Potassium is vital in the human body, and potassium chloride by mouth is the common means to treat low blood potassium, although it can also be given intravenously. It is on the World Health Organization's List of Essential Medicines, the safest and most effective medicines needed in a health system. Lethal injections of potassium chloride are used in induced abortions and executions.

Culinary use
It can be used as a salt substitute for food, but due to its weak, bitter, unsalty flavor, it is often mixed with ordinary table salt (sodium chloride) to improve the taste to form low sodium salt. The addition of 1 ppm of thaumatin considerably reduces this bitterness. Complaints of bitterness or a chemical or metallic taste are also reported with potassium chloride used in food.

As a chemical feedstock, it is used for the manufacture of potassium hydroxide and potassium metal. It is also used in medicine, lethal injections, scientific applications, food processing, soaps, and as a sodium-free substitute for table salt for people concerned about the health effects of sodium. It is used as a supplement in animal feed to boost the amount of nutrients in the feed, which in turn promotes healthy growth in animals. As an added benefit, it is known to increase milk production. It is sometimes used in water as a completion fluid in petroleum and natural gas operations, as well as being an alternative to sodium chloride in household water softener units. Glass manufacturers use granular potash as a flux, lowering the temperature at which a mixture melts. Because potash confers excellent clarity to glass, it is commonly used in eyeglasses, glassware, televisions and computer monitors. KCl is useful as a beta radiation source for calibration of radiation monitoring equipment, because natural potassium contains 0.0118% of the isotope 40K. One kilogram of KCl yields 16350 becquerels of radiation consisting of 89.28% beta and 10.72% gamma with 1.46083 MeV. In order to use off the shelf materials it needs to be crystallized sequentially using controlled temperature in order to extract KCl, which is the subject of ongoing research. There are also a small number of 511 keV gamma rays from positron annihilation which can be used to calibrate medical scanners. Potassium chloride is used in some de-icing products that are designed to be safer for pets and plants, though these are inferior in melting quality to calcium chloride [lowest usable temperature 12 °F (−11 °C) v. −25 °F (−32 °C)]. It is also used in various brands of bottled water, as well as in bulk quantities for fossil fuel drilling purposes. Potassium chloride was once used as a fire extinguishing agent, used in portable and wheeled fire extinguishers. Known as Super-K dry chemical, it was more effective than sodium bicarbonate-based dry chemicals and was compatible with protein foam. This agent fell out of favor with the introduction of potassium bicarbonate (Purple-K) dry chemical in the late 1960s, which was much less corrosive and more effective. It is rated for B and C fires. Along with sodium chloride and lithium chloride, potassium chloride is used as a flux for the gas welding of aluminum. Potassium chloride is also an optical crystal with a wide transmission range from 210 nm to 20 µm. While cheap, KCl crystals are hygroscopic. This limits its application to protected environments or short-term uses such as prototyping. Exposed to free air, KCl optics will "rot". Whereas KCl components were formerly used for infrared optics, it has been entirely replaced by much tougher crystals such as zinc selenide. Potassium chloride has also been used to produce heat packs which employ exothermic chemical reactions, but these have mostly been discontinued with the advent of cheaper and more efficient methods, such as the oxidation of metals ('Hot Hands' one-time-use products) or the crystallization of sodium acetate (multiple-use products). Potassium chloride is used as a scotophor with designation P10 in dark-trace CRTs, e.g. in the Skiatron.

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