Phenolphthalein indicator solution, 250 ml
Boiling point (bp) 78 °C
Flash point (flp) 17 °C
ADR 3 II
excl. VAT. | 250 ml per Pack Qty.
Art. No. K034.1
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Phenolphthalein indicator solution 1 % in ethanol 90 %, denatured
|Colour conversion||colourless - purple|
|Handling area pH||8,0 - 10,0|
- Subtotal: 0.00
|Order No.||Pack Qty.||Pack.||Price||Quantity|
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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.
Indicators and Dyes
Carl ROTH offers many indicators and dyes of high purity, which can be used in special applications.
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.