Associations to the word «Potassium»

POTASSIUM, noun. A soft, waxy, silvery reactive metal that is never found unbound in nature; an element (symbol K) with an atomic number of 19 and atomic weight of 39.0983. The symbol is derived from the Latin kalium.

POTASSIUM, noun. (countable) A single atom of this element.

POTASSIUM ACESULFAME, noun. A particular artificial sweetener.

POTASSIUM ALUMINIUM SULFATE, noun. (inorganic compound) The sulfate double salt of potassium and aluminium KAl(SO4)2; occurs naturally as alum

POTASSIUM AMIDE, noun. (inorganic compound) A yellowish brown solid, KNH2, obtained by heating potassium in ammonia gas. It is most commonly used as a base to create a carbanion of an enolate.

POTASSIUM ANTIMONYL TARTRATE, noun. (inorganic compound) The salt commonly known as tartar emetic

POTASSIUM BENZOATE, noun. (organic compound) The potassium salt of benzoic acid.

POTASSIUM BICARBONATE, noun. An odorless, slightly basic substance which is soluble in water and often used to offset acidity.

POTASSIUM BITARTRATE, noun. Cream of tartar

POTASSIUM CARBONATE, noun. (inorganic compound) The alkaline salt K2CO3, that is the major constituent of potash; it is used in the production of glass and some soaps

POTASSIUM CHANNEL, noun. (biology) A small pore in a cell membrane that is selective to potassium ions and has several regulatory functions.

POTASSIUM CHLORIDE, noun. (inorganic compound) The potassium salt of hydrochloric acid, KCl; it is used as a fertilizer, and in lethal injections

POTASSIUM CHROMATE, noun. (chemistry) A potassium salt of chromic acid, K2CrO4; the yellow crystals are soluble in water, and it is used as an analytical reagent.

POTASSIUM CYANIDE, noun. (inorganic compound) The potassium salt of hydrocyanic acid, KCN; the colourless crystals are soluble in water, and it is extremely poisonous, and is used in electroplating, the extraction of gold and silver from their ores, and in photography.

POTASSIUM DICHROMATE, noun. (chemistry) A potassium salt of chromic acid, K2Cr2O7; the orange crystals are soluble in water, and it is used as an oxidizing agent and in photography.

POTASSIUM FELDSPAR, noun. (mineralogy) Any of several alkaline feldspars containing potassium aluminium silicate, KAlSi3O8

POTASSIUM FORMATE, noun. (inorganic compound) A salt of formic acid, formula CHKO2.

POTASSIUM HYDROXIDE, noun. (inorganic compound) The alkaline base KOH, once known as caustic potash; it has a number of industrial uses, including the manufacture of bleach

POTASSIUM IODIDE, noun. (chemistry) a salt, KI, formally derived from potassium hydroxide and hydriodic acid, used as an analytical reagent, in organic synthesis, and in the preparation of photosensitive emulsions and as a radioprotector to protect the thyroid.

POTASSIUM NIOBATE, noun. (inorganic compound) The salt KNbO3; its crystals have a large nonlinear optical coefficient, and it find use in the manufacture of lasers; nanowires of the substance have been used to produce tunable coherent light.

POTASSIUM NITRATE, noun. (chemistry) A naturally occurring potassium salt KNO3, used in the production of nitric acid HNO3, as a food preservative, and is used in toothpaste for sensitive gums.

POTASSIUM NITRITE, noun. (chemistry) The potassium salt of nitrous acid, KNO2.

POTASSIUM PERMANGANATE, noun. (chemistry) KMnO4, the most readily available commercial permanganate; it is used as an oxidizing agent both in industry and in the analytical laboratory.

POTASSIUM SELECTIVE ELECTRODE, noun. An ion selective electrode used to measure the concentration of potassium ions, especially in biological fluids.

POTASSIUM SORBATE, noun. (chemistry) The potassium salt of sorbic acid.

POTASSIUM, noun. A light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite.