Specifications Table

Product Name – Bromocresol purple indicator powder
Quantity/Pack Size – 5 g
Form – Powder
Grade – Laboratory Grade
Application – pH indicator, titrations, colorimetric assays

Product Overview

Bromocresol purple indicator powder is a synthetic pH-sensitive dye widely used in laboratories for accurate pH determination in aqueous solutions. This high-purity, laboratory-grade indicator transitions from yellow to purple across the pH range of 5.2 to 6.8, making it ideal for titrations, colorimetric assays, and other analytical procedures requiring precise pH monitoring. The powder form ensures stability and long shelf life when stored under recommended conditions, maintaining consistent performance in various experimental setups. Its solubility in water and alcohol allows for easy preparation of indicator solutions, while its sharp color change provides clear visual endpoints. Bromocresol purple is particularly valued in biochemical and chemical research for its reliability in acidic to neutral pH ranges. The product undergoes rigorous quality control to ensure batch-to-batch consistency, meeting the stringent requirements of professional laboratories and educational institutions.

FAQs

1. What is the exact pH range where bromocresol purple changes color?

Bromocresol purple transitions from yellow to purple between pH 5.2 and 6.8, with a distinct color change that serves as a reliable indicator in this range.

2. Can this indicator be used in non-aqueous solvents?

The powder is primarily designed for aqueous solutions but can be dissolved in alcohol for specific applications, though color intensity may vary in non-aqueous environments.

3. How should bromocresol purple indicator powder be stored for long-term use?

Store the powder in a tightly sealed container, protected from light and moisture, at room temperature to maintain stability and prevent degradation.

4. Is this indicator compatible with automated titration systems?

Yes, bromocresol purple can be used in automated systems, provided the equipment is calibrated to detect its specific color transition range.

5. What alternatives exist for pH ranges outside 5.2-6.8?

For broader pH ranges, consider indicators like phenolphthalein (8.3-10.0) or methyl orange (3.1-4.4), depending on the required detection range.