Sodium Hydroxide Titrator Cartridge, 0,1600 N NaOH

Description

Titrator Cartridge, sodium hydroxide, for acidity determination (1437701) from Hach. Suitable for use with test kits and the Hach digital manual titrator.

Accuracy of results

Digital titrator methods use a high-precision dosing device and concentrated titrant cartridges to allow analysis both in the laboratory and in the field.

Efficiency

Replaceable cartridges allow you to quickly change titrants.

Versatility

More than 50 parameter / range combinations available.

Profitability

Concentrated titrants allow 40 to 100 tests (titrations) per cartridge.

Procedure:  A bromphenol blue indicator is added to the sample. Then, the sample is titrated with a sodium hydroxide solution until the indicator changes color at the endpoint pH of 3.7. This titration is a measure of strong mineral acidity (also referred to as methyl orange acidity). The bromphenol blue indicator gives a better endpoint than the methyl orange indicator. A phenolphthalein indicator is added to a fresh portion of sample. Then, the sample is titrated with a sodium hydroxide solution until the indicator changes color at the endpoint pH of 8.3. This titration includes both strong and weak acid species and is a measure of the total acidity. The results are expressed in mg/L as calcium carbonate (CaCO3) at a specified pH.