Phenolphthalein indicator solution , 500 ml
Boiling point (bp) 78 °C
Melting point (mp) -114 °C
ADR 3 II
WGK 3
UN-Nr. 1170
ready-to-use
€29.60/Pack Qty.
excl. VAT. | 500 ml per Pack Qty.
Art. No. 8145.2
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Product details
Phenolphthalein indicator solution 0,1 % 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 | ||
|---|---|---|---|---|---|---|
| 8145.1 | 250 ml | glass | €21.00 |
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| 8145.2 | 500 ml | glass | €29.60 |
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- Subtotal: 0.00
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General information
Carl ROTH also offers reagents suitable for food analysis.
On the following pages, you will find the determination of
• Nitrogen according to Kjeldahl
• Sugar
• Mercury
• Trichinae
• Fat
and the determination of the
• Iodine value
• Acid value
• Peroxide value
• Saponification value
as well as other determining factors such as
• Viscosity
• Density
• Hydroxyl value
• Fluoride ions
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.
Indicators and Dyes
Carl ROTH offers many indicators and dyes of high purity, which can be used in special applications.