Method for rapidly detecting main component in active lime and passivated lime
An active lime, rapid determination technology, applied in the field of analytical chemistry, can solve the problems of titration error amplification, increase of analytical test uncertainty, and high energy consumption
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[0068] Weigh 0.1g~0.50g, preferably 0.5000g, (accurately to 0.0001g), which has been prepared as a sample of active lime and passivated lime with a particle size of less than 0.125mm, placed in a sealed bottle, and perform a blank test with the sample. Put it in a heating container of 100mL~250mL. For the heating container, a 150mL pot is preferably used. Add 30mL~100mL of hydrochloric acid solution with a concentration ratio of 1 to 1 to 1 to 5. The sample volume corresponds to the amount of hydrochloric acid. When the sample amount is small, relatively use a small amount or low concentration ratio hydrochloric acid solution to dissolve the sample, preferably 100mL hydrochloric acid with a concentration of 1:3. If the sample is not completely decomposed, add 10 mL of a 1:3 concentration each time Hydrochloric acid, or choose other concentrations of hydrochloric acid and the amount to dissolve the sample, decompose the sample on the heater to complete, the passivated lime sample...
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