At every tide these would be filled, and when full the precipitant would be added.
The Ph. Grca orders infusion of galls to be used as the precipitant.
However, the appearance of the new arrival greatly modified the unfavorable impression produced by his precipitant action.
Potassium hydrate and ammonia give black grey or black precipitates, which are insoluble in excess of the precipitant.
It thus acts as bleach, as neutralizing agent, and as precipitant, and the precipitate itself is a strong adsorbent.
Ammonia gives a similar precipitate, which is soluble in excess of the precipitant.
This distinguishes it from zinc, which gives a similar white precipitate, but is soluble in the excess of the precipitant.
A solution of potassa causes a white granular precipitate of cream of tartar, soluble by agitation in excess of the precipitant.
The degree of separation of water (spent lye) depends upon the amount of precipitant used.
This method has the advantage of the water being perfectly freed from any excess of the precipitant by heat.
precipitant pre·cip·i·tant (prĭ-sĭp'ĭ-tənt)
A substance that causes a precipitate to form when it is added to a solution.