Description
Potassium hydroxide in denatured ethanol is a 0,5 mol/l (0,5 N) volumetric solution intended for analytical titration and related laboratory determinations. It contains potassium hydroxide (empirical formula KOH, molar mass 56,11 g/mol), CAS number 1310-58-3 and EG number 215-181-3, dissolved in denatured ethanol. Characteristic physical values include a density of about 0,842 g/cm³, a flash point of 12 °C, and a boiling point near 78 °C. Owing to denaturation, the solution is described as stable for a maximum of two months and may show yellow colouration; it can still be used for longer periods with non-photometric methods. Supplied in a 1 litre pack, the reagent is relevant to saponification-value work and other food-analysis titrations that call for ethanolic potassium hydroxide. The product is available from manufacturer Carl ROTH for routine volumetric applications. Users should observe standard precautions for flammable alkaline ethanolic solutions and consult the safety data sheet for full handling guidance.
This article is part of Volumetric standard solutions (titration), in Analytical standards & reference materials.
Key features
- Amount-of-substance conc. (20 °C): 0,5 mol/l ±0,4 %
- Titer: 0,996-1,004
- CAS number: 1310-58-3
- Pack size: 1 l
- EG nr.: 215-181-3
- Empirical formula: KOH
- Density: ~0,842 g/cm³
- Molar mass: 56,11 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
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Precautionary Statements (P-Phrases)
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Questions about Potassium hydroxide in ethanol denatured, 0.5 mol/l - 0.5 N volumetric solution
What is this article?
Potassium hydroxide in ethanol denatured, 0.5 mol/l - 0.5 N volumetric solution is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Volumetric standard solutions (titration), inside Analytical standards & reference materials, in Lab chemicals.
A volumetric standard solution is a reagent of stated concentration for titration, such as a stated molarity of acid, base or silver nitrate. The factor or the exact titre is on the certificate. Using the nominal molarity when a factor is printed is a systematic error.
A reference material is the article against which another result is compared. Its value is stated, and the uncertainty of that value is part of the product. An ICP or ion standard is a solution of known concentration. A volumetric standard is for titration. A chromatography standard is the peak you match. The grade names, including pharmacopoeia and ASTM, say which impurities were limited. Identity is checked on PubChem. Names follow IUPAC. Medicinal grades follow the European Pharmacopoeia and USP.
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The category is Analytical standards & reference materials. The sub-category is Volumetric standard solutions (titration). The catalogue is Lab chemicals.
Shelves beside this one are ICP, AAS & ion standards, Chromatography standards (GC, HPLC, pesticides), Reference substances & reagents (other), Reagents for analysis (Ph. Eur., ASTM, DIN), Spectroscopy & physical property standards and Indicators & indicator solutions.
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