Potassium chloride
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The chemical compound potassium chloride (KCl) is a metal halide composed of potassium and chlorine. In its pure state it is odourless. It has a white to colourless vitreous crystal, with a face-centred cubic structure that cleaves easily in three directions. It is also commonly known as "Muriate of Potash". Potash varies in color from pink or red to white depending on the mining and recovery process used. White potash, sometimes referred to as soluble potash, is usually higher in analysis and is used primarily for making liquid starter fertilizers. more...

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KCl is used in medicine, scientific applications, food processing and in judicial execution through lethal injection. It occurs naturally as the mineral sylvite and in combination with sodium chloride as sylvinite.

Chemical properties

Potassium chloride can react as a source of chloride ion. As with any other soluble ionic chloride, it will precipitate insoluble chlorides when added to a solution of an appropriate metal salt such as silver nitrate:

KCl(aq) + Ag(NO3)(aq) → AgCl(s) + KNO3(aq)

Although potassium is more electropositive than sodium, KCl can be reduced to the metal by reaction with metallic sodium if the potassium is removed by distillation, due to Le Chatelier's principle:

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Andrx Receives Final FDA Marketing Approval for Generic K-Dur
From Business Wire, 4/10/02

Business Editors/Health & Medical Writers

FORT LAUDERDALE, Fla.--(BW HealthWire)--April 10, 2002

ANDRX CORPORATION - Andrx Group (Nasdaq: ADRX) today announced that the United States Food and Drug Administration (FDA) has approved the marketing of its Abbreviated New Drug Application (ANDA) for both strengths (10 and 20 mEq) of potassium chloride extended release tablets.

Potassium chloride is bioequivalent to Schering-Plough Corporation's brand name product, K-Dur(R), and is used as a treatment for cardiovascular disease and is a potassium supplement typically in cardiovascular disease. Andrx plans to market its product immediately.

Andrx Corporation is a specialty pharmaceutical company engaged in the formulation and commercialization of oral controlled-release generic and brand pharmaceuticals utilizing its proprietary drug delivery technologies.

Forward-looking statements (statements which are not historical facts) in this release are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. For this purpose, any statements contained in this report that are not statements of historical fact may be deemed to be forward-looking statements. Without limiting the generality of the foregoing, words such as "may," "will," "to," "expect," "plan," "believe," "anticipate," "intend," "could," "would," "estimate," or "continue" or the negative or other variations thereof or comparable terminology is intended to identify forward-looking statements. Investors are cautioned that all forward-looking statements involve risks and uncertainties, including those risks and uncertainties detailed in the Company's filings with the Securities and Exchange Commission.

This release and additional information about Andrx Corporation are also available on the Internet at: http://www.andrx.com.

COPYRIGHT 2002 Business Wire
COPYRIGHT 2002 Gale Group

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