potassium chloride


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Related to potassium chloride: potassium chlorate, Potassium deficiency

potassium chloride,

chemical compound, KCl, a colorless or white, cubic, crystalline compound that closely resembles common salt (sodium chloride). It is soluble in water, alcohol, and alkalies. Potassium chloride occurs pure in nature as the mineral sylvite and is found combined in many minerals and in brines and ocean water. It is recovered (with other compounds) from the brine of Searles Lake in California. It is produced from sylvinite, a sodium chloride–potassium chloride mineral that is mined extensively near Carlsbad, N.Mex., and it is refined by fractional crystallization and by a flotation process. It is also recovered from lake brines in Utah and from ores in Saskatchewan, Canada. The chief use of potassium chloride is in the production of fertilizersfertilizer,
organic or inorganic material containing one or more of the nutrients—mainly nitrogen, phosphorus, and potassium, and other essential elements required for plant growth.
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; it is also used in chemical manufacture. For agricultural use it is often called muriate of potash; the concentration of potassium chloride in muriate of potash is expressed as a corresponding concentration of potassium oxide (K2O), i.e., the concentration of potassium oxide that there would be if the potassium were present as its oxide instead of as its chloride. Thus, muriate of potash that contains (typically) 80% or 97% KCl by weight is said to contain 50% or 60% K2O, respectively. Manure salts contain some potassium chloride.

Potassium Chloride

 

KC1, a salt; colorless crystals. Density, 1.989 g/cm3; melting point, 768°C. Solubility, 34.7 g per 100 g H2O at 20°C (56.6 g at 100°C).

Potassium chloride occurs in nature as sylvite. Natural sylvinite (a mixture of sylvite, KC1, and halite, NaCl) and the mineral carnallite, KCl⋅MgCl2⋅6H2O, serve as the raw material in the the preparation of potassium chloride. Potassium chloride is used as a potassium fertilizer and as a raw material for the preparation of other potassium salts and potassium hydroxide. In medicine, potassium chloride solutions are used internally or intravenously for conditions accompanied by potassium deficiency (for example, during treatment with certain preparations or after persistent vomiting) and for cases of cardiac arrhythmia. [ll–639–4]

potassium chloride

[pə′tas·ē·əm ′klȯr‚īd]
(inorganic chemistry)
KCl Colorless crystals with saline taste; soluble in water, insoluble in alcohol; melts at 776°C; used as a fertilizer and in photography and pharmaceutical preparations. Also known as potassium muriate.
References in periodicals archive ?
Hiring untrained nursing staff, as in the case of the staff nurse who administered potassium chloride injection wrongly to Nishwa, is an act of crime.
Potassium chloride was given as a premixed solution containing 10 mmol of potassium chloride in 100 mL of water for injection.
By adding potassium chloride, the duration of analgesia can be significantly increased when compared to local anaesthetic alone group as addition of potassium ions outside a nerve cell causes reduction of the resting membrane potential and causes conduction blockade.
Production results for 1Q turned out to be very inspiring - in 1Q Uralkaliy built up output of potassium chloride by 8% vs the similar period of the previous year to 2.08 mn tons.
For many years, the regenerant of choice for water softening systems was plain table salt, sodium chloride, because it was cheap and plentiful; it was also an environmental pollutant, however, and Wist (1945-2007), a chemist with a potash company in Canada, helped develop the technology for using potassium chloride instead.
Until now, the Zielitz site has been producing potassium chloride as fertilizer for agriculture and technical potash for most diverse applications in processing industry", said the company.
"She was unaware that an overdose of potassium chloride was potentially fatal.
Edna Alker, of Orrell, died after she was given a fatal dose of potassium chloride by Rebecca Riley, a student from Liverpool's John Moores university.
To make a salt substitute, the sodium chloride is often replaced with potassium chloride. label says, "one-third less sodium," the product may be one-third potassium chloride.
To provide potassium, chloride in the form of potassium chloride in used in many commercial solid fertilisers, and the recommendation is to avoid these - try and stick to those which use only potassium nitrate.
One hundred sixty-one postmenopausal women (mean age, 58.6 years) with low bone mass (T score of -1 to -4) were randomly assigned to receive, in double-blind fashion, 30 mEq per day of potassium citrate or potassium chloride for 12 months.

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