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Hardness- 2340


Item No. Description
LC127001 Calcium Carbonate Standard, 500mL
LC128501 Calmagite Indicator, 0.1%, 500mL
LC138502 EDTA Titrant, 0.01M (1mL= 1mg CaCO3), 1 Liter
LC140401 Eriochrome Black-T in Methoxyethanol, 500mL
LC242702 Sodium Hydroxide, 0.1N, 1 Liter
LC268002 Water Hardness Buffer (Odorless), 1Liter
LC268102 Water Hardness Buffer w/Magnesium, 1 Liter

Question/Answer

what is the concentration of your calcium carbonate std LC127001

The concentration of this solution is 1000 mg/L Hardness as CaCO3.

What is the Alkalinity as CaCO3

We do not have data on the alkalinity of this buffer. The requirement for this buffer according to the hardness method is that a 25 mL volume of sample achieves a pH of 10.0 ± 0.1 with the addition of 1-2 mL.

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