Description
Specifications Table
Product Name – Neutral Red Indicator Powder
Quantity/Pack Size – 25 g
Form – Powder
Grade – Laboratory Grade
Application – pH indicator (6.8–8.0 range)
Product Overview
Neutral Red indicator powder is a synthetic dye widely used in laboratories for pH determination in acidic to neutral solutions. This laboratory-grade powder transitions from red to yellow as the pH shifts from 6.8 to 8.0, providing a clear visual indication of pH changes. Its high purity ensures accurate and reliable results, making it a preferred choice for titration experiments, microbial culture media, and biochemical assays. The powder form allows for easy dissolution in aqueous or alcoholic solutions, offering flexibility in preparation. Neutral Red is stable under standard lab conditions and compatible with most common laboratory reagents. Its non-toxic nature and consistent performance make it suitable for routine lab applications where precise pH monitoring is essential. The indicator is particularly useful in environments where colorimetric pH detection is required without the need for electronic instrumentation. Proper storage in a cool, dry place preserves its efficacy over extended periods.
FAQs
1. What is the pH range for Neutral Red indicator?
Neutral Red changes color between pH 6.8 (red) and pH 8.0 (yellow), making it ideal for detecting neutral to slightly alkaline conditions.
2. Can Neutral Red be used in microbial culture media?
Yes, Neutral Red is commonly added to culture media to differentiate bacterial colonies based on pH changes caused by metabolic activity.
3. What solvents can dissolve Neutral Red powder?
Neutral Red powder dissolves readily in water, ethanol, and methanol, allowing for versatile preparation methods.
4. How should Neutral Red indicator be stored?
Store in an airtight container away from direct sunlight and moisture to maintain stability and prevent degradation.
5. Is Neutral Red compatible with other pH indicators?
Yes, it can be combined with other indicators like Methylene Blue for broader pH range detection in mixed indicator solutions.
