1.14652

Total Hardness Test Kit, titrimetric

titrimetric, for use with MCOLORTEST^®

• 分類程式碼代碼: 41116116
• NACRES: NA.24

属性

• product name: Total Hardness Test in freshwater, titrimetric, for use with MCOLORTEST^®
• 特定分析物: calcium, magnesium
• 品質等級: 100
• 相容性: for use with MCOLORTEST^®
• 檢測方法: titrimetric
• 儲存溫度: 15-25°C

说明

一般說明

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.

法律資訊

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

安全信息

• 儲存類別代碼: 10 - Combustible liquids
• 水污染物質分類（WGK）: WGK 2