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Éthanol, 1 l, verre

Éthanol, 1 l, verre

Référence P075.1
€ 108,02
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Éthanol, 1 l, verre
Détails du produit
Numero CAS: 9002-92-0
Formules chimiques: C58H118O24
Code SH: 22071000
Marque: Carl Roth
Ethanol 96 %, Ph.Eur., extra pure, Molar mass (M) 46,07 g/mol, Density (D) 0,81 g/cm³, Flash point (flp) 12 °C, Boiling point (bp) 78 °C, CAS No. [64-17-5], UN-Nr. 1170, EG-Nr. 200-578-6, Empirical formula C2H6O


Ethanol 96 %, Ph. Eur., extra pure

Technische informatie
Getest volgens artsenijboek Ph. Eur.

Acid Value Determination

The acid number characterises the acidic components of the fats. For this purpose, the sample is dissolved in a solvent and titrated against phenolphthalein with potassium hydroxide solution. Only free fatty acids are recorded. The fatty acids bound in the glycerides are not determined.


Saponification Value

The saponification value denotes the amount of potassium hydroxide required to neutralise free fatty acids and saponify bound fatty acids. The lower the average molar mass of the fat, the higher the saponification value. The sample is heated under reflux in a defined quantity of ethanolic potassium hydroxide solution and the non-used alkaline solution is titrated with hydrochloric acid.


Hydroxyl Value

The hydroxyl value is a measure of the hydroxy group content of organic materials such as paints, resins, polystyrenes, solvents and lipids. It represents the amount in milligrams of potassium hydroxide required to neutralise the quantity of acetic acid that combines on acetylation of one gram of the substance being tested.


Assay (V/V) 95,1-96,9 %
Properties complies
Identity complies
Appearance complies
Acid or alkaline react. substances complies
Density (d 20 °C/20 °C) 0,805-0,812
Absorbance
240 nm ≤0,4
250-260 nm ≤0,3
270-340 nm ≤0,1
Volatile impurities
Acetaldehyde and acetal ≤0,001 %
Benzene ≤0,0002 %
Methanol ≤0,01 %
Evaporation residue ≤0,0025 %
Sum of other impurities ≤0,03 %
Volatile impurities
Disregard limit ≤0,0009 %
Prices include german tax on alcohol.
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