Description
Specifications Table
Product Name – Methyl orange indicator solution
Quantity/Pack Size – 125 ml
Form – Liquid solution
Grade – Laboratory grade
Application – pH indicator (acid-base titrations)
Product Overview
Methyl orange indicator solution is a synthetic azo dye widely used as a pH indicator in analytical chemistry. This high-purity, water-soluble solution transitions from red to yellow within the pH range of 3.1 to 4.4, making it ideal for detecting endpoints in acid-base titrations. The solution is prepared under stringent quality controls to ensure consistency and reliability in experimental results. Its stable formulation minimizes degradation over time, providing long-lasting performance in laboratory settings. The indicator is compatible with most aqueous systems and does not interfere with common titration reagents. Due to its sharp color change at low pH values, it is particularly effective for strong acid-weak base titrations. The solution is supplied in a light-resistant container to prevent photodegradation, ensuring accurate readings throughout its shelf life. For best results, store at room temperature away from direct sunlight and moisture.
FAQs
1. What is the exact pH range where methyl orange changes color?
The color transition occurs between pH 3.1 (red) and pH 4.4 (yellow), with an intermediate orange hue at the midpoint.
2. Can this indicator be used with non-aqueous solvents?
Methyl orange is primarily designed for aqueous solutions. For non-aqueous systems, alternative indicators like crystal violet may be more suitable.
3. How should I dispose of expired methyl orange solution?
Neutralize with dilute sodium hydroxide or hydrochloric acid before disposal according to local chemical waste regulations.
4. Does this solution require refrigeration for long-term storage?
No, room temperature storage in the original container is sufficient, but keep it tightly sealed to prevent evaporation.
5. What’s the difference between methyl orange and phenolphthalein indicators?
Methyl orange works in acidic ranges (pH 3.1–4.4), while phenolphthalein is for basic ranges (pH 8.3–10.0). Choose based on your titration requirements.
