Description
Potassium hydroxide solution in ethanol est une solution volumétrique 0.1 mol/l (0.1 N) de KOH dans 96 % ethanol non dénaturée, désignée Reag. Ph. Eur. pour le travail de titrage pharmacopée et analytique. Basé sur potassium hydroxide (CAS 1310-58-3, formule empirique KOH, masse molaire 56.11 g/mol), le milieu éthanolique présente une densité d'environ 0.827 g/cm³, un point d'éclair de 12 °C et un point d'ébullition d'environ 78 °C. Conditionnée en 1 litre, ce réactif volumétrique prêt à l'emploi soutient les titrages non aqueux ou en solvant mixte, les dosages liés à la saponification et les tâches de standardisation lorsqu'un titre de KOH alcoolique est spécifié. La solution du fabricant Carl ROTH porte EG nr. 215-181-3 et est formulée pour les laboratoires qui exigent une force de base éthanolique définie sans préparer de KOH solide dans ethanol sur site. Convient aux environnements pharmaceutiques, chimiques et de contrôle qualité travaillant selon les attentes de réactif Ph. Eur. pour potassium hydroxide volumétrique in ethanol.
Cet article fait partie de Solvants de qualité analytique (p.a.), dans Solvants.
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What is this article?
Solution de potassium hydroxide dans ethanol is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Solvants de qualité analytique (p.a.), inside Solvants, in Produits chimiques.
An analytical-grade solvent, often marked p.a., has impurity limits tight enough for classical analysis and for preparing reagents. It is not automatically low enough in UV absorbance for HPLC, and it is not dry enough for a water-sensitive reaction. The grade is the purchase.
A solvent dissolves. The grade says which impurities are low enough for the method. Analytical grade is the ordinary pure solvent. HPLC and LC-MS grades limit the absorbance and the ions that would become peaks or background. A dry solvent has had water removed. A deuterated solvent is for NMR, where the hydrogen signal would otherwise drown the sample. Technical grade is for cleaning and for synthesis that does not need a chromatogram. Identity is on PubChem. Names follow IUPAC. Hazards follow ECHA, the CLP Regulation and REACH.
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The category is Solvants. The sub-category is Solvants de qualité analytique (p.a.). The catalogue is Produits chimiques.
Shelves beside this one are Solvants de qualité HPLC & LC-MS, Solvants secs & deutérés (NMR, synthèse), Solvants de qualité technique & synthèse and Solvants verts & alternatifs.
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