Automatic Determination of Water Hardness by Vector Colorimetry with Acid Chrome Blue K

• Published in: Journal of analysis and testing Vol. 7; no. 2; pp. 157 - 162
• Main Authors: Gao, Su, Ye, Ming-Liang, Ma, Rui, Liu, Ai-Rong, Gao, Hong-Wen
• Format: Journal Article
• Language: English
• Published: Singapore Springer Nature Singapore 01.06.2023
• Subjects: Analytical Chemistry; Characterization and Evaluation of Materials; Chemistry; Chemistry and Materials Science; Monitoring/Environmental Analysis; Original Paper; Acid chrome blue K; Total hardness; Online automatic detection; Vector chromaticity measuring device

Based on the Mg 2 + complexation with acid chrome blue K (ACBK) at pH 10.2, an automatic system was designed to determine total hardness of water. The system consists of a vector colorimeter, a multi-channel sampling pump and both reagents A and B. Two kinds of reagent solutions were prepared and us...