Product Overview

Eriochrome Black T in Sodium Chloride is a dry, pre-formulated indicator mixture designed for direct use in complexometric titrations, particularly in the determination of water hardness. This stable blend eliminates the need for reconstitution, offering a convenient and reliable alternative to traditional indicator solutions.

The mixture combines Eriochrome Black T, a metallochromic dye that forms a red complex with calcium and magnesium ions, with sodium chloride to ensure uniform distribution and ease of use. During titration with EDTA, the indicator shifts from wine red to blue at the endpoint, clearly signaling the completion of the reaction.

Key Features:

• Dry mixture eliminates the need for solution preparation
• Consistent color change: red (metal-bound) to blue (endpoint)
• Sodium chloride carrier ensures homogeneity and ease of measurement
• Long shelf life and excellent stability under dry conditions
• Ideal for field kits, routine testing, and educational use

Applications:

• Complexometric titrations for determining water hardness
• Calcium and magnesium analysis in water samples
• Industrial water treatment monitoring
• Environmental water quality testing
• Teaching and training labs requiring simplified reagent handling

Eriochrome Black T in Sodium Chloride provides a precise, convenient, and stable format for titration procedures, making it ideal for both laboratory and field applications where accuracy and ease of use are critical.