1.14652

Total Hardness Test Kit, titrimetric

titrimetric, for use with MCOLORTEST^®

• UNSPSCコード: 41116116
• NACRES: NA.24

特性

• product name: Total Hardness Test in freshwater, titrimetric, for use with MCOLORTEST^®
• 特定アナライト: calcium, magnesium
• 品質水準: 100
• 適合性: for use with MCOLORTEST^®
• 検出方法: titrimetric
• 保管温度: 15-25°C

詳細

詳細

Method: titrimetric with dropping bottle MColortest^®

The test measures the content of salts of the alkaline earth metals calcium, magnesium, strontium and barium in freshwater. For the determination the titrant is added dropwise to the sample until the added indicator changes its color.

This MQuant^® Total Hardness test (formally MColortest^®) is suitable for the titrimetric determination using a convenient dropping bottle.

Method
Calcium and magnesium ions react with an indicator to form a red complex compound. The indicator is released from this compound by titration with a solution of ethylenedinitrilotetraacetic acid disodium salt dihydrate (Titriplex^® III). At the titration end-point the color changes to green. The total hardness is determined from the consumption of titration solution.

法的情報

MCOLORTEST is a registered trademark of Merck KGaA, Darmstadt, Germany

MQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany

Titriplex is a registered trademark of Merck KGaA, Darmstadt, Germany

安全性情報

• 保管分類コード: 10 - Combustible liquids
• WGK: WGK 2