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Potassium hydrogen sulfate (also known as potassium bisulfate), KHSO 4, is readily produced by reacting K 2 SO 4 with sulfuric acid. It forms rhombic pyramids, which melt at 197 °C (387 °F). It dissolves in three parts of water at 0 °C (32 °F). The solution behaves much as if its two congeners, K 2 SO 4 and H 2 SO 4, were present side by ...
Common name Chemical name (Formula) Potash fertilizer: c. 1942 potassium carbonate (K 2 CO 3); c. 1950 any one or more of potassium chloride (KCl), potassium sulfate (K 2 SO 4) or potassium nitrate (KNO 3). [13] [14] Does not contain potassium oxide (K 2 O), which plants do not take up. [15]
Potassium alum, potash alum, or potassium aluminium sulfate is a chemical compound first mentioned under various Sanskrit names in Ayurvedic medicinal texts such as charak samhita, sushrut samhita, and ashtang hridaya; is chemically defined as the double sulfate of potassium and aluminium, with chemical formula KAl(SO 4) 2.
Potassium chromium sulfate. Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Chrome alum or Chromium (III) potassium sulfate is the potassium double sulfate of chromium. Its chemical formula is KCr (SO 4) 2 and it is commonly found in its dodecahydrate form as KCr (SO 4) 2 ·12 (H ...
The only alums formed with common trivalent metals are NaAl(SO 4) 2 (unstable above 39 °C) and NaCr(SO 4) 2, in contrast to potassium sulfate and ammonium sulfate which form many stable alums. [11] Double salts with some other alkali metal sulfates are known, including Na 2 SO 4 ·3K 2 SO 4 which occurs naturally as the mineral aphthitalite .
Potassium sulfide is an inorganic compound with the formula K 2 S. The colourless solid is rarely encountered, because it reacts readily with water, a reaction that affords potassium hydrosulfide (KSH) and potassium hydroxide (KOH). Most commonly, the term potassium sulfide refers loosely to this mixture, not the anhydrous solid.
The sulfate or sulphate ion is a polyatomic anion with the empirical formula SO2− 4. Salts, acid derivatives, and peroxides of sulfate are widely used in industry. Sulfates occur widely in everyday life. Sulfates are salts of sulfuric acid and many are prepared from that acid.
In the European Union, it is known under the E number (additive code) E950. [3] It was discovered accidentally in 1967 by German chemist Karl Clauss at Hoechst AG (now Nutrinova). [4] Acesulfame potassium is the potassium salt of 6-methyl-1,2,3-oxathiazine-4 (3 H)-one 2,2-dioxide. It is a white crystalline powder with molecular formula C.