云南
属性
分析物化学类别
alkalis
质量水平
100
相容性
for use with MQUANT®
detection method
titrimetric
储存温度
15-25°C
说明
一般描述
Acid capacity to pH 8.2 and pH 4.3 Method: titrimetric with titration pipette MQuant®
The alkalinity is an important parameter for the assessment of the surface-water quality and the corrosive behaviour of water as well as for water and wastewater treatment. This MQuant® Alkalinity test (formally MColortest®) is suitable for the titrimetric determination using a graduated syringe.
Method
One sample (sample A) is titrated with hydrochloric acid against phenolphthalein until it becomes colorless (at pH 8.2), while a second sample (sample B) of the same water is titrated against a mixed indicator until its color changes to red (at pH 4.3). The values for KS8.2 and KS4.3 are determined from the corresponding consumption of titration solution.
The test measures alkalinity in e.g.
Groundwater and surface water, seawater
Drinking water and mineral water
Industrial water, prozess water, and wastewater
Boiler water
Aquarium water and waters from aquaculture
Swimming-pool water
法律信息
MCOLORTEST is a registered trademark of Merck KGaA, Darmstadt, Germany
MQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany
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