Polyaluminium chloride price index to define what steps are the testing methods? Polyaluminium chloride price index to define what steps are the testing methods? Polyaluminum chloride prices are normal according to the content of aluminum oxide to 30%, 28% of the price is not the same, 30% is divided into spray-dried polyaluminum chloride, frame filter press polyaluminum chloride and Drum-type polyaluminum chloride three, the three different production of polyaluminum chloride prices are not the same. Polyaluminum chloride is the best high-performance spray-dried polyaluminum chloride, followed by frame filter press polyaluminum chloride, and finally a roller-type polyaluminum chloride. The 30% poly (aluminum chloride) color produced by these three different processes appears as a pale yellow powder; the 28% poly (aluminum chloride) is slightly cheaper than the 30% Poly aluminum chloride. First, weigh about 2.5g (accurate to 0.0002g) of solid polyaluminum chloride sample, put it in a 250ml beaker (first add the proper amount of water in the beaker) and completely dissolve it into 250ml volumetric flask, dilute to the mark, Dry filter (medium-speed qualitative filter paper, filter used when the conical flask and funnel are dried) After liquid polyaluminum chloride called test solution A. Take 10ml of filtered liquid polyaluminum chloride in a conical flask (with a pipette plus), add 10ml each nitric acid (with a pipette plus), heated for 1 minute, remove and rinse with distilled water, add 20ml EDTA ( Pipette plus 2) Thymol blue 2 drops, with ammonia water into a yellow (no drops of cooling), heating 2 minutes cooling, add 10 ml of sodium acetate buffer solution (automatic plus plus pipe), add 3 drops of dimethyl Phenol orange, with zinc acetate standard drops to red. Need polyaluminum chloride testing, it is recommended to find a formal third-party testing agencies. The above is the filter water for everyone to elaborate on the detection of polyaluminum, I hope many people can help, more information on the sewage treatment information, please visit our website http://www.gyzhenyu.com/