Specifications Table

Product Name – Methyl red indicator powder
Quantity/Pack Size – 25 g
Form – Powder
Grade – Laboratory Grade
Application – pH indicator (4.4–6.2 range)

Product Overview

Methyl red indicator powder is a high-purity, synthetic dye widely used as a pH indicator in laboratory settings. It transitions from red to yellow within the pH range of 4.4 to 6.2, making it ideal for titrations, buffer solutions, and qualitative analysis. This laboratory-grade powder is soluble in alcohol and slightly soluble in water, ensuring consistent performance in various solvent systems. Its stable chemical structure provides reliable color changes, minimizing false readings during experiments. The powder form allows for precise dosing, reducing waste and ensuring cost-effectiveness for frequent use. Compatible with most standard lab protocols, methyl red is a trusted choice for researchers requiring accurate pH detection. Store in a cool, dry place away from direct sunlight to maintain its efficacy over time.

FAQs

1. What is the exact pH range where methyl red changes color?

Methyl red transitions from red to yellow between pH 4.4 and 6.2, with a distinct color change at the midpoint.

2. Can this powder be used in aqueous solutions directly?

It is slightly soluble in water but dissolves more effectively in alcohol. For aqueous use, prepare a stock solution in ethanol first.

3. Are there any safety precautions for handling methyl red powder?

Wear gloves and avoid inhalation. While non-toxic in small quantities, prolonged exposure may cause skin or respiratory irritation.

4. How should methyl red indicator powder be stored for long-term use?

Keep the container tightly sealed in a cool, dark place to prevent degradation from light or moisture.

5. What alternatives exist if methyl red is unavailable for a specific pH range?

Bromothymol blue (pH 6.0–7.6) or phenolphthalein (pH 8.3–10.0) can be used depending on the required detection range.