Determination of Metal Zinc in Aluminum-containing Zinc Powder
If the sample contains metal aluminum,the amont of zinc and aluminum in zinc powder is determined by potassium permanganate indirect titration mothod,and then the content of metal alumium in the sample is determined by colorimetry.Finally,the alumium is converted into the same amount of metal zinc by 1∶3.635 2(mass fraction ratio)to deduct,and the content of metal zinc in the sample is obtained.The relative standard deviation of the test results of multiple sample is 0.13%～0.36%.The moted is suited for zinc powder production,research enterprises and inspection and testing institutions.
NETL
NSTL
万方数据
