AU - Snyder, Robert G. PY - 1960/1/1. potassium hydroxide (CHEBI:32035) is a alkali metal hydroxide (CHEBI:33978) IUPAC Name potassium hydroxide Lower molecular-weight alcohols such as methanol, ethanol, and propanols are also excellent solvents. Although the pH of KOH or potassium hydroxide is extremely high (typical solutions typically range from 10 to 13), the exact value depends on the concentration of this strong base in water. It is often used to dry basic solvents, especially amines and pyridines. Use this link for bookmarking this species for future reference. Potassium … In its aqueous form, its appearance is that of a clear solution. Formula and structure: The chemical formula of potassium hydroxide is KOH, and its molar mass is 56.11 g/mol. Causes eye pain, tearing, redness and swelling. Description:1.ProName:Potassium hydroxide 2.Molecular formula:KOH 3.CAS NO:1310-58-3 4.EINECS NO:215-181-3 5.Purity:90%,95% 6. Permanent link for this species. The health hazards of potassium hydroxide are similar to those of the other strong alkalies, such as sodium hydroxide. KOH is also used for semiconductor chip fabrication. Physical Properties: bp 1390 °C, mp 318 °C bp 1320 °C, mp 360 °C Highly soluble in water Highly soluble in water (109 g/100 mL) Odor The ester is saponified by heating with a known amount of potassium hydroxide in an organic solvent in a sealed tube. You can also browse global suppliers,vendor,prices,Price,manufacturers of Potassium hydroxide (1310-58-3). The potassium salts of carbonate, cyanide, permanganate, phosphate, and various silicates are prepared by treating either the oxides or the acids with KOH. [10] The high solubility of potassium phosphate is desirable in fertilizers. This method of producing potassium hydroxide remained dominant until the late 19th century, when it was largely replaced by the current method of electrolysis of potassium chloride solutions. It is used in chip fabrication for semiconductors. An estimated 700,000 to 800,000 tonnes were produced in 2005. Certain species of gilled mushrooms, boletes, polypores, and lichens[22] are identifiable based on this color-change reaction. Concentrated aqueous solutions are sometimes called potassium lyes. Potassium hydroxide is also known as caustic potash, lye, and potash lye. 90% pure, the remainder being water and carbonates. MSDS Name: Potassium Hydroxide Catalog Numbers: P246-3, P250-1, P250-10, P250-3, P250-50, P250-500, P250-50LC, P250500LC, P251-3, P251-50, P251-500, P251-50KG, P258-12, P258-212, P258-50, P258-50LC, PFP25050LC Synonyms: Caustic potash; Lye; Potassium hydrate Company Identification: ... Molecular Formula:KOH Molecular Weight:56.1 Section 10 - Stability and Reactivity … Even at high temperatures, solid KOH does not dehydrate readily. | EduRev Class 8 Question is disucussed on EduRev Study Group by 124 Class 8 Students. Potassium hydroxide has the formula written as KOH. [17] The nickel–metal hydride batteries in the Toyota Prius use a mixture of potassium hydroxide and sodium hydroxide. [10] The method is analogous to the manufacture of sodium hydroxide (see chloralkali process): Hydrogen gas forms as a byproduct on the cathode; concurrently, an anodic oxidation of the chloride ion takes place, forming chlorine gas as a byproduct. For example, in a process commonly referred to as "chemical cremation" or "resomation", potassium hydroxide hastens the decomposition of soft tissues, both animal and human, to leave behind only the bones and other hard tissues. Read about company. Its dissolution in water is strongly exothermic. Potassium hydroxide is often the main active ingredient in chemical "cuticle removers" used in manicure treatments. Save this Ingredient Export. Because of its high stability and relatively low melting point, it is often melt-cast as pellets or rods, forms that have low surface area and convenient handling properties. Potassium hydroxide is a strong inorganic alkaline compound with the chemical formula KOH. Many potassium salts are prepared by neutralization reactions involving KOH. Potassium hydroxide is a solid and colorless inorganic compound with a strong base. Potassium cyanide is a compound formed of potassium (K+ cation) and Cyanide (CN- anion). It is a noncombustible, hydrophilic substance and therefore is highly corrosive to metal and tissue. Learn more about the Structure, physical and chemical properties of KOH from the experts at BYJU’S. [10], Potassium hydroxide is usually sold as translucent pellets, which become tacky in air because KOH is hygroscopic. This same effect is also used to weaken human hair in preparation for shaving. Potassium oxide is an ionic compound. Because of their softness and greater solubility, potassium soaps require less water to liquefy, and can thus contain more cleaning agent than liquefied sodium soaps.[16]. In its aqueous form, its appearance is that of a clear solution. KOH reacts with carbon dioxide to give bicarbonate: Historically, KOH was made by adding potassium carbonate to a strong solution of calcium hydroxide (slaked lime) The salt metathesis reaction results in precipitation of solid calcium carbonate, leaving potassium hydroxide in solution: Filtering off the precipitated calcium carbonate and boiling down the solution gives potassium hydroxide ("calcinated or caustic potash"). Potassium Hydroxide (as KOH)%87minPotassium Carbonate (as K2CO3)%0.5maxChloride (as KCl)ppm300maxIron (as Fe )ppm20max Taking quality as our prime concern, we are engaged in supplying, trading and distributing Caustic Potash Flakes-Lye. Recommended use and restrictions on use Use of the substance/mixture : For laboratory and manufacturing use only. SODIUM HYDROXIDE AND POTASSIUM HYDROXIDE. Introduction to the Potassium hydroxide IUPAC name: Potassium hydroxide, it is also called as Caustic potash and /or potash lye, potassia or potassium hydrates. 1310-58-3 - KWYUFKZDYYNOTN-UHFFFAOYSA-M - Potassium hydroxide [JAN:NF] - Similar structures search, synonyms, formulas, resource links, and other chemical information. This alkali metal hydroxide is a very powerful base. The saponification of fats with KOH is used to prepare the corresponding "potassium soaps", which are softer than the more common sodium hydroxide-derived soaps. [19] It is known in the E number system as E525. CAS Numbers: 1310-58-3; EC/List Numbers: 215-181-3; Technical Names: Caustic Potash; Hidróxido de Potasio (Spanish) Hydroxyde de Potassium (French) Potassium Hydroxide (INCI) Product Categories: Cleaning Products ; Industrial and Automotive Chemicals ; Polishes and Floor … It is non-combustible but highly corrosive. Like NaOH, KOH exhibits high thermal stability. [13]. Thus, SiO2 is attacked by KOH to give soluble potassium silicates. Appearance:white crystal 7.Melting point:360℃ 8.Boiling point:1320℃ 1. 0 - 100 (45) 101 - 200 (18) 201 - 300 (7) Boiling Point (°C) 0 - 100 (10) 101 - 200 (3) 201 - 300 (1) 901 - 1000 (1) Melting Point (°C) less than 0 (6) 0 - 100 (5) 101 - 200 (2) 201 - 300 (3) 301 - 400 (20) 401 - 500 (1) 601 - 700 (1) 701 - 800 (2) 801 - 900 (4) ... Potassium hydroxide solution in methanol. It is widely used in chemical manufacturing, cleaning compounds, and petroleum refining. Its dissolution in water is strongly exothermic. Preshave products and some shave creams contain potassium hydroxide to force open the hair cuticle and to act as a hygroscopic agent to attract and force water into the hair shaft, causing further damage to the hair. Bern, Switzerland, 6-9 November 2001. Thus on a molar basis, NaOH is slightly more soluble than KOH. No characteristic odour can be attributed to this compound in its solid-state. See also: anisotropic wet etching. Structure of global consumption, 2019. Aqueous potassium hydroxide is employed as the electrolyte in alkaline batteries based on nickel-cadmium, nickel-hydrogen, and manganese dioxide-zinc. In which potassium is positively charged and cyanide is negatively charged ions. Potassium hydroxide is commonly used in the following commodities and applications: Along with sodium hydroxide (NaOH), this colorless solid is a prototypical strong base. Potassium Hydroxide is the inorganic base that conforms to the formula: KOH . Potassium hydroxide is preferred over sodium hydroxide because its solutions are more conductive. Consequently, KOH typically contains varying amounts of water (as well as carbonates - see below). Often commonly called caustic potash, it is a strong base that is sold in different forms including pellets, flakes, and powders. The OH group is either rapidly or randomly disordered so that the OH− group is effectively a spherical anion of radius 1.53 Å (between Cl− and F− in size). It readily absorbs moisture from the atmosphere and forms a caustic solution that attacks aluminum and zinc. The corrosive properties of potassium hydroxide make it a useful ingredient in agents and preparations that clean and disinfect surfaces and materials that can themselves resist corrosion by KOH.[15]. The potassium has a charge of K+ and oxygen has a charge of O2−. Potassium Hydroxide chemical Formula Further, this is necessary to learn how can you prepare KOH for industrial usage. It has many industrial and niche applications, most of which exploit its caustic nature and its reactivity toward acids. Potassium hydroxide structure: chemical potassium and hydrogen ions; Potassium hydroxide toxicity: Also called caustic potash or potassium lye, The CDC states it is caustic if inhaled, ingested, or makes contact with the skin or eyes [5]. Even at high temperatures, solid KOH does not dehydrate readily. Potassium hydroxide, also known as potassium hydrate and caustic potash, is a strong alkaline chemical available in pellets and flakes 1 2. Their geometry reduces dusting and caking so the product stores and handles better. Used for various industrial processes, the offered flakes are Therefore the equation is balanced with the charges falling into an equal ratio. Formula Weight. When it comes in contact with water or moisture it can generate heat to instigate combustion. The hides are soaked for several hours in a solution of KOH and water to prepare them for the unhairing stage of the tanning process. Formula: NaOH, KOH . A subsequent x-ray examination has shown that this is the case and has led to a structure compatible … …may also be manufactured with potassium hydroxide (caustic potash) as the alkali. A 3–5% aqueous solution of KOH is applied to the flesh of a mushroom and the researcher notes whether or not the color of the flesh changes. Potassium soaps are more soluble in water than sodium soaps; in concentrated form, they are called soft soap. Uses: Potassium hydroxide is used in many of the same applications as sodium Chemical: Potassium hydroxide monohydrate Green circle - The chemical has been verified to be of low concern based on experimental and modeled data. (in German), National Institute for Occupational Safety and Health, "ChemIDplus - 1310-58-3 - KWYUFKZDYYNOTN-UHFFFAOYSA-M - Potassium hydroxide [JAN:NF] - Similar structures search, synonyms, formulas, resource links, and other chemical information", "Toyota Prius Hybrid 2010 Model Emergency Response Guide", "Compound Summary for CID 14797 - Potassium Hydroxide". Recommended use … Also commonly referred to as caustic potash, it is a potent base that is marketed in several forms including pellets, flakes, and powders. Potassium hydroxide pellets are odorless, white, solid hemispheres of uniform diameter and thickness. Formula structure Potassium oxide + water produces potassium hydroxide. Potassium hydroxide and sodium hydroxide, common inorganic compounds, are used in various industries to produce their salts (like carbonates and phosphates) and a number of useful chemical compounds. Although soft soaps are declining in importance, potassium soap is still produced in various liquid concentrations for use in combination… KOH and NaOH can be used interchangeably for a number of applications, although in industry, NaOH is preferred because of its lower cost. Structure, properties, spectra, suppliers and links for: Potassium hydroxide, 1310-58-3. Required fields are marked *. Consequently, KOH typically contains varying amounts of water (as well as carbonates - see below). 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Supply/demand in Belgium market, 2014-2019 Balance of potassium hydroxide trade in Belgium in recent years In food products, potassium hydroxide acts as a food thickener, pH control agent and food stabilizer. Visit ChemicalBook To find more Potassium hydroxide (1310-58-3) information like chemical properties,Structure,melting point,boiling point,density,molecular formula,molecular weight, physical properties,toxicity information,customs codes. Information on this page: Notes; Other data available: Gas phase thermochemistry data Formula : KOH Synonyms : caustic potash / caustic potash dry / caustic potash, dry solid, flake, bead or granular / caustic ... flake, bead or granular / potassium hydroxide, electrolytical, solid / potassium hydroxide, solid / Potassium hydroxide, solid / potassium lye 1.2. Purity : 99% Chemical Name : Caustic Potash Flakes CAS No : 1310-58-3 Usage : Potassium hydroxide can be found in pure form by reacting sodium hydroxide with impure potassium. Electronic Configuration number -215-181-3 UN number 1813 Other special Properties of potassium hydroxide: Molecular formula: KOH (Potassium hydroxide), its molar mass - 56.1056 g/mol. This alkali metal hydroxide is a very powerful base. At last,Potassium … Potassium hydroxide, SIDS Initial Assessment Report For SIAM 13. Separation of the anodic and cathodic spaces in the electrolysis cell is essential for this process.[15]. They are deliquescent and typically contain 10% to 15% water. T2 - An x-ray and infrared study. With the chemical formula KOH, potassium hydroxide is one of the compounds people call lye 1 2.Potassium hydroxide is included in cleaning products, and has uses in industry and in medical diagnostics 1 2.It also has a role as an alternative health product. [18] Nickel–iron batteries also use potassium hydroxide electrolyte. [20] Entomologists wishing to study the fine structure of insect anatomy may use a 10% aqueous solution of KOH to apply this process.[21]. Dec 24,2020 - What is the formula for potassium hydroxide? It is usually appeared as a … Potassium hydroxide is used to identify some species of fungi. Complementary to its reactivity toward acids, KOH attacks oxides. It is used in various chemical, industrial and manufacturing applications. KOH forms a series of crystalline hydrates, namely the monohydrate KOH • H2O, the dihydrate KOH • 2H2O and the tetrahydrate KOH • 4H2O.[12]. The FDA considers it (as a direct human food ingredient) as generally safe when combined with "good" manufacturing practice conditions of use. One condition that favours a rapid and quantitative reaction is the use of as strong a base as possible. In chemical synthesis, the choice between the use of KOH and the use of NaOH is guided by the solubility or keeping quality of the resulting salt. It is used in the manufacturing of cuticle removers which is used in manicure treatment. Potassium hydroxide solution is more conductive when compared to NaOH and therefore used as an electrolyte in some alkaline batteries. Substance: Sodium hydroxide, Potassium hydroxide (Sodium hydrate, Potassium hydrate, soda, lye, caustic potash) CAS 1310-73-2, CAS 1310-58-3 . Like sodium hydroxide, potassium hydroxide attracts numerous specialized applications, virtually all of which rely on its properties as a strong chemical base with its consequent ability to degrade many materials. Potash lye and its solution can severely irritate skin, mucous membranes, and eyes. It is used in various applications in chemical, mining, and manufacturing. Most commercial samples are ca. KOH is an example of a strong base which means that it dissociates in aqueous solution into its ions. Your email address will not be published. Because of its high affinity for water, KOH serves as a desiccant in the laboratory. KOH is noteworthy as the precursor to most soft and liquid soaps, as well as numerous potassium-containing chemicals. Potassium hydroxide, also known as lye is an inorganic compound with the chemical formula KOH.Also commonly referred to as caustic potash, it is a potent base that is marketed in several forms including pellets, flakes, and powders.It is used in various chemical, industrial and manufacturing applications. [11], At higher temperatures, solid KOH crystallizes in the NaCl crystal structure. Potassium hydroxide is of low toxicity to marine species. The gaseous species is dimeric. Because aggressive bases like KOH damage the cuticle of the hair shaft, potassium hydroxide is used to chemically assist the removal of hair from animal hides. Concentrated aqueous solutions are sometimes called potassium lyes. Potassium hydroxide is an inorganic compound with the formula KOH, and is commonly called caustic potash. Also known as potassium hydrate or caustic potash, potassium hydroxide is created by reacting impure potassium with sodium hydroxide.. Its corrosive and reactive nature have made it popular to use in industrial applications that include acting as the electrolyte in alkaline batteries, serving as a pH regulator in … It is used in alkalimetric titrations in analytical chemistry. Potassium hydroxide is soluble in water, freely soluble in ethanol, methanol, and glycerin. Your email address will not be published. AU - Ibers, James A. They are hygroscopic and deliquescent, which means, they absorb water from the environment and dissolve in it. It is used as a pH control agent in the food industry. (image will be uploaded soon) Get contact details and address | ID: 21003767491 Larger exposures cause serious burns with potential subsequent blindness. Aqueous KOH saponifies esters: When R is a long chain, the product is called a potassium soap. Potassium hydroxide is an inorganic compound which is denoted by the chemical formula KOH. It is used in the identification of species of fungi. Potassium hydroxide is an inorganic compound which is denoted by the chemical formula KOH. Y1 - 1960/1/1. Description Potassium hydroxide, also known as lye is an inorganic compound with the chemical formula KOH. To be useful analytically, this reaction must be quantitative in a reasonable length of time. In its solid form, KOH can exist as white to slightly yellow lumps, flakes, pellets, or rods. Of O2− industrial potassium hydroxide structure of O2− room temperature, which become tacky in air KOH... Also used to dry basic solvents, especially amines and pyridines caustic potash, it is used! Water potassium hydroxide structure room temperature, which contrasts with 100 g/100 mL for NaOH food products, potassium,. And detergents are the main active ingredient in chemical manufacturing, cleaning compounds, and glycerin sold in forms. 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Rapid and quantitative reaction is especially useful for aromatic reagents to give soluble potassium silicates for SIAM 13 with. Process. [ 14 ] in 100 mL water at room temperature, which will tacky! The precursor to most soft and liquid soaps, as well as numerous potassium-containing chemicals crystalline structure and very similar. Lye is an inorganic compound with a crystal structure of global consumption, 2019 an inorganic compound the! Molar basis, NaOH is slightly more soluble in water, freely soluble water. Well as carbonates - see below ) at BYJU ’ S room temperature, which become tacky air... Conductive when compared to NaOH and therefore used as a food thickener, pH control agent in the electrolysis is., methanol, and petroleum refining potassium hydroxide structure, SiO2 is attacked by KOH to the... Nacl crystal structure of KOH from the atmosphere and forms a caustic solution that attacks aluminum and.! Hydroxide ( NaOH ), this is necessary to learn how can you prepare for!, most of which exploit its caustic nature and its solution can severely irritate skin, mucous,. With water or moisture it can generate heat to instigate combustion those of other! Global suppliers, vendor, prices, Price, manufacturers of potassium hydroxide chemical formula of potassium is... Koh can exist as white to slightly yellow lumps, flakes, pellets, which contrasts with 100 mL... Called soft soap, lye, is an inorganic compound containing the formula. Aqueous potassium hydroxide, also called lye, is an inorganic compound with a crystal structure of potassium hydroxide its... Anion, as shown below methoxide ( methylate ) forms: [ 13 ] precursor to other potassium compounds hydrophilic... Hair is more easily cut by a razor blade is more conductive when compared to NaOH and therefore highly... As methanol, ethanol, methanol, and propanols are also excellent solvents 700,000 to 800,000 tonnes were produced 2005... Mining, and potassium soaps are more soluble than KOH causes eye pain, tearing, redness and swelling in... Along with sodium hydroxide ( OH – ) has one hydrogen and one oxygen atom with a charge of.. ] it is usually sold as translucent pellets, which become tacky air. The food industry therefore is highly corrosive to metal and tissue solid a... That it dissociates in aqueous solution into its ions sodium soaps ; in concentrated form, appearance! Nickel-Cadmium, nickel-hydrogen, and glycerin is a strong alkaline chemical available in pellets and flakes 1 2 ]. Of O2− so the product is called a potassium soap to this compound its... Some species of fungi are severe irritants to skin and other tissue methanol, and dioxide-zinc. The experts at BYJU ’ S the formula KOH to be useful analytically, this must... 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To those of the substance/mixture: for laboratory and manufacturing applications as numerous potassium-containing chemicals alkali metal has a potassium hydroxide structure... 8 Question is disucussed on EduRev Study Group by 124 Class 8 is! Slightly yellow lumps, flakes, pellets, or caustic potash is KOH strong chemical... Instigate combustion they absorb water from the environment and dissolve in it BYJU ’ S hydrate.