Hardness 1 buffer solution, 100 mL

hach-42432-bufernyj-rastvor-dlya-opredeleniya-zhestkosti.jpeg42432 Hardness buffer solution

SKU: 42432

Manufacturer: Hach

Availability: Order only

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Buffer Solution, for Hardness titrations with a pH 10,1 ± 0,1 at 20°C.

Used with test kits and Hach handheld digital titrator.

Quantity: 100 mL. (also available in sizes 50, 500 and 1000 mL)


Description

Description

Hardness 1 buffer solution, 10,1 ± 0,1 pH at 20 °C (42432) for Hardness titrations from Hach. Designed for use with test kits and Hach handheld digital titrator. 

Application: For water, wastewater and process water.

Summary of method: A buffer solution (an organic amine and one of its salts) is added to the sample to adjust the pH to 10.1. An organic dye, calmagite, is then added as the indicator for the test. The organic dye reacts with calcium and magnesium ions to give a red-colored complex. The EDTA (ethylenediaminetetraacetic acid) titrant is added, which reacts with all of the free calcium and magnesium ions in the sample. After the EDTA has reacted with all of the free magnesium ions, the EDTA removes the magnesium ions from the indicator. The indicator color then changes from red to blue.

 
Specifications

Specifications

Application areaEnvironmental monitoring, Wastewater, Beverages, Laboratory analysis
TypeStandard pH solutions
IndustryEcology, Pulp and paper, Pharmaceutical, Glass, Power generation, Transport, Chemical, Food and Beverage, Municipal
ParametersHardness
Measurement Range10 - 4000 mg/L as CaCO3
MethodEDTA
Quantity100 mL
Downloads

Downloads

Working procedure: Hardness, Calcium (Titration Method with EDTA); Hardness, Hardness buffer solution, 100 ml (42432)
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