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Caustic Test Kit [LaMotte]
In order to precipitate any carbonate, a sample is reacted with barium. Then it is titrated with a standard acid to the phenolphthalein endpoint.
*30 mL 3.6N Hydrochloric Acid
*15 mL 0.5% Phenolphthalein Solution
*30 mL 10% Barium Chloride Solution
1 Pipet, 0.5 mL, plastic
Test Tube, 5-10-15-20-25 mL, plastic, w/cap
*Note: Reagents are considered to be potential health hazards.