Description
Specifications Table
Product Name – Dichlorofluorescein indicator 0.1% w/v in 70% Alcohol
Quantity/Pack Size – 100 ml
Form – Liquid Solution
Grade – Laboratory/Analytical Grade
Application – Argentometric Titrations, Adsorption Indicator
Product Overview
Dichlorofluorescein indicator is a highly effective and widely utilized reagent in analytical chemistry, particularly for argentometric titrations. This specific formulation provides a 0.1% w/v solution of Dichlorofluorescein in a 70% alcohol solvent, ensuring optimal stability and performance. As an adsorption indicator, it functions by changing color at the equivalence point of a titration, which is critical for accurate quantitative analysis. The indicator gets adsorbed onto the precipitate surface, leading to a distinct color shift, making the endpoint determination visually precise. Its characteristic color change, typically from a greenish-yellow fluorescence to a distinct pink, provides a clear and unambiguous signal for the completion of the reaction.
This high-grade Dichlorofluorescein solution is prepared with meticulous attention to purity, guaranteeing consistent and reliable results in various laboratory settings. The 70% alcohol solvent aids in solubility and ensures the indicator remains stable over time, preventing degradation and maintaining its effectiveness. It is an indispensable tool for students, researchers, and educators performing titrations involving halides (like chloride, bromide, iodide) with silver nitrate. The ease of use and the sharp endpoint detection it offers contribute significantly to the accuracy of volumetric analyses. Ensuring proper storage in a cool, dark place will maintain its integrity for extended periods, making it a cost-effective and dependable choice for your laboratory needs. This product is designed to meet the demands of precise chemical analysis, providing a clear visual cue for critical experimental determinations.
FAQs
1. What is Dichlorofluorescein indicator primarily used for?
It is predominantly used as an adsorption indicator in argentometric titrations, particularly for determining halides like chlorides, bromides, and iodides with silver nitrate.
2. How should I store Dichlorofluorescein indicator solution?
For optimal stability and longevity, the solution should be stored in a cool, dark place, away from direct sunlight and heat. Keep the bottle tightly sealed when not in use.
3. What is the typical color change observed during a titration with this indicator?
The indicator typically changes color from a greenish-yellow fluorescence in solution to a distinct pink or reddish-pink adsorbed on the precipitate surface at the equivalence point.
4. Is the 0.1% w/v concentration suitable for most standard laboratory procedures?
Yes, a 0.1% w/v solution of Dichlorofluorescein in 70% alcohol is a standard and effective concentration widely used for accurate argentometric titrations in most laboratory settings.
5. Can this indicator be used in non-aqueous titrations?
This specific formulation, being in 70% alcohol, is generally suitable for aqueous or partially aqueous systems. For non-aqueous titrations, a different solvent system for the indicator might be required.
