Potassium Hydroxide

Base Information

• Chemical Name: Potassium Hydroxide
• CAS No.: 1310-58-3
• Deprecated CAS: 29857-72-5,71769-53-4,2226392-06-7
• Molecular Formula: KOH
• Molecular Weight: 56.1056
• Hs Code.: 28259090
• European Community (EC) Number: 215-181-3
• ICSC Number: 0357
• UN Number: 1814,1813
• UNII: WZH3C48M4T
• DSSTox Substance ID: DTXSID5029633
• Nikkaji Number: J43.933I
• Wikipedia: Potassium hydroxide,Potassium_hydroxide
• Wikidata: Q132298
• NCI Thesaurus Code: C28204
• RXCUI: 34311
• ChEMBL ID: CHEMBL2103983
• Mol file: 1310-58-3.mol

Synonyms:potassium hydroxide;potassium hydroxide monohydrate;potassium hydroxide tetrahydrate;potassium hydroxide, 39K-labeled;potassium hydroxide, 41K-labeled

Chemical Property of Potassium Hydroxide

Chemical Property:

• Appearance/Colour: white solid
• Vapor Pressure: 1 mm Hg ( 719 °C)
• Melting Point: 360 °C
• Refractive Index: n20/D 1.421
• Boiling Point: 100 °C at 760 mmHg
• Flash Point: 52 °F
• PSA: 23.06000
• Density: 2.044 g/cm³
• LogP: -0.17680
• Storage Temp.: 0-6°C
• Sensitive.: Air Sensitive & Hygroscopic
• Solubility.: H2O: 1 M at 20 °C, clear, colorless
• Water Solubility.: soluble
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 1
• Rotatable Bond Count: 0
• Exact Mass: 55.96644614
• Heavy Atom Count: 2
• Complexity: 2
• Transport DOT Label: Corrosive

Purity/Quality:

48% ^*data from raw suppliers

Potassium Hydroxide, ACS ^*data from reagent suppliers

Safty Information:

• Pictogram(s): T,F,Xi,C
• Hazard Codes: C,F,T,Xi
• Statements: 34-35-22-11-39/23/24/25-23/24/25-36/38-36/37-67-52/53
• Safety Statements: 7-16-36/37-45-36/37/39-26-61

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Other Classes -> Bases
• Canonical SMILES: [OH-].[K+]
• Recent ClinicalTrials: Comparison of 5% Potassium Hydroxide With 10% Potassium Hydroxide Solution in Treatment of Molluscum Contagiosum
• Inhalation Risk: A harmful concentration of airborne particles can be reached quickly when dispersed.
• Effects of Short Term Exposure: The substance is very corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion.
• Effects of Long Term Exposure: Repeated or prolonged contact with skin may cause dermatitis.
• Description: Potassium hydroxide(KOH) is highly basic, forming strongly alkaline solutions in water and other polar solvents. These solutions are capable of deprotonating many acids, even weak ones. Potassium hydroxide is used to make soft soap, in scrubbing and cleaning operations, as a mordant for woods, in dyes and colorants, and for absorbing carbon dioxide. Other principle uses of caustic potash are in the preparation of several potassium salts, acid-base titrations, and in orgainic sytheses. Also, KOH is an electrolyte in certain alkaline storage batteries and fuel cells. Potassium hydroxide is used in neutralization reactions to yield potassium salts. Aqueous potassium hydroxide is employed as the electrolyte in alkaline batteries based on nickel-cadmium and manganese dioxide-zinc. Alcoholic KOH solutions are also used as an effective method for cleaning glassware. KOH works well in the manufacture of biodiesel by catalyzing transesterification of the triglycerides in vegetable oil.
• Uses: Potassium hydroxide has many different functions and uses. It is primarily used as an intermediate in industrial manufacturing processes, such as the manufacture of fertilisers, potassium carbonate or other potassium salts and organic chemicals. It is also used in the manufacture of detergents and in alkaline batteries. Small-scale uses include drain cleaning products, paint removers and degreasing agents. manufacture of liquid soap; mordant for wood; absorbing CO2; mercerizing cotton; paint and varnish removers; electroplating, photoengraving and lithography; printing inks; in analytical chemistry and in organic syntheses. Pharmaceutic aid (alkalizer). Potassium Hydroxide is a water-soluble food additive and bleaching agent. upon exposure to air it readily absorbs carbon dioxide and moisture and deliquesces. it is used to destroy the bitter chemical constituents in olives that will be used as black olives.
• Indications: Potassium hydroxide (KOH) is a strong alkali that digests proteins and epidermal debris. In one study, 10% solution was applied b.i.d. to each lesion for 30 days with excellent clearance. The side effects included stinging of the lesion and one case of secondary infection. Also reported were the occurrence of a hypertrophic scar as well as some persistent or transitory hyper- and hypopigmentation. The same authors who used the 5% KOH solution completed further studies and they found it to be as effective-yet with decreased side effects.

Technology Process of Potassium Hydroxide

There total 1 articles about Potassium Hydroxide which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

potassium fluoride (7789-23-3) + calcium hydroxide → calcium fluoride + potassium hydroxide (1310-58-3)

Guidance literature:

In water; at 70 ℃; for 2h; Product distribution / selectivity;

Reference yield: 99.7%

potassium hydroxide (1310-58-3) + 2-amino-6-fluoro-1,3-benzothiazole (348-40-3) → 2-amino-5-fluorothiophenol potassium salt (365214-14-8)

Guidance literature:

In water; at 113 - 115 ℃; for 8h; Heating / reflux;

Reference yield: 94.0%

potassium hydroxide (1310-58-3) + silver nitrate → silver(l) oxide (20667-12-3)

Guidance literature:

In water;

upstream raw materials:

potassium fluoride

Downstream raw materials:

mepanipyrim

cozaar

methyl 3,5-dibromobenzoate

hydroxylamine

Refernces