Wastewater Treatment Chemicals Coagulant 20-30% Granule PAC Polyaluminum Chloride

The use effect of polyaluminum chloride is directly related to the active ingredient trialuminum in polyaluminum chloride. The content of aluminum oxide in polyaluminum chloride is generally 20% to 30%. SAIFU PAC will introduce the purity test of PAC, that is, the content of aluminum oxide in PAC. .

At present, there is a national standard detection method for the content of aluminum oxide in polyaluminum chloride. After dissolving the polyaluminum chloride sample, add acid to depolymerize the polyaluminum chloride through the action of acid, then add an excess of sodium ethylenediamine solution to complex the metal aluminum in the polyaluminum chloride sample, and finally add zinc for titration. chloride. Potassium fluoride was used to analyze the complex aluminum ion in the polyaluminum chloride sample, and zinc chloride was used to analyze the remaining sodium ethylenediamine solution in the polyaluminum chloride sample solution.

After the experiment, the relevant data of the used agent was obtained, and the content of aluminum oxide in the polyaluminum chloride solution was calculated according to the data. Because it is an artificial experiment, the detection of polyaluminum chloride will have certain errors in most cases. Generally, the detection error of the liquid purity of polyaluminum chloride should not be greater than 0.1%, and the detection error of the purity of solid polyaluminum chloride should not be greater than 0.1%. greater than 0.2%.

When users buy polyaluminum chloride, they buy polyaluminum chloride with the corresponding content. After testing, there will be deficiencies. As long as the difference is not within the margin of error, it is normal imagination. Mainly due to differences in personnel operations, such as gaps in polyaluminum chloride sample collection, gaps in polyaluminum chloride inspection methods, and inaccurate personnel operations, the same polyaluminum chloride product ultimately obtains different purity values.