Description
Specifications Table
Product Name – Carmine Indicator
Quantity/Pack Size – 25 g
Form – Powder
Grade – Laboratory Reagent (LR)
Application – pH indicator (6.0–8.0), colorimetric titration, acid-base analysis
Product Overview
Carmine Indicator is a highly sensitive pH-sensitive dye derived from natural sources, widely used in laboratory settings for accurate acid-base titrations and colorimetric analysis. This laboratory-grade reagent exhibits a distinct color transition from red to yellow within the pH range of 6.0 to 8.0, making it ideal for precise endpoint detection in titrations. The powdered form ensures easy dissolution in aqueous solutions, providing consistent and reliable results. As a non-toxic, water-soluble indicator, it offers excellent stability under standard lab conditions, minimizing degradation over time. Its high purity and consistent performance make it a preferred choice for analytical applications where precision is critical. The reagent is compatible with most standard lab glassware and does not interfere with common analytical procedures. For optimal results, store in a cool, dry place away from direct sunlight to preserve its indicator properties.
FAQs
1. What is the exact pH range where Carmine Indicator changes color?
The color transition occurs between pH 6.0 (red) and pH 8.0 (yellow), with a noticeable intermediate purple hue around pH 7.0.
2. Can this indicator be used in non-aqueous solvents?
Carmine Indicator is primarily water-soluble and may not perform optimally in organic solvents. For non-aqueous titrations, consider alternative indicators like thymol blue.
3. How should I dispose of unused Carmine Indicator solution?
Dilute with plenty of water before disposal as per standard lab waste protocols. Avoid direct discharge into drains without neutralization if mixed with hazardous reagents.
4. Does this indicator work well in buffered solutions?
Yes, it remains effective in buffered systems, but the buffer’s pH should fall within the 6.0–8.0 range for accurate color changes.
5. What’s the shelf life of unopened Carmine Indicator powder?
When stored in original packaging at room temperature (15–25°C), the powder retains stability for up to 36 months from the date of manufacture.
