GB T6009-2014 Aqueous Sodium Sulfate Salt Glauber Dyeing Assistant 1000kg

Glauber Salt 

The detection method for the purity of sodium sulfate :

The determination method of sodium sulfate content is as follows:

XRD pattern analysis was used to determine the purity of sodium sulfate.

The complexometric titration method involves adding an excess of barium sulfate standard solution to the solution to form a barium sulfate precipitate. The remaining barium ions and calcium and magnesium ions are subjected to complexometric titration with EDTA, and the content of sodium sulfate is calculated based on the difference.

The content of sodium sulfate was detected by the gravimetric method in accordance with 6.3.1 of the national standard "Industrial Anhydrous Sodium Sulfate" (GB/T6009-2014).

The content of sodium sulfate is determined in accordance with the calculation method in 5.1.2 of the national standard "Industrial Anhydrous Sodium Sulfate" (GBT 6009-2014).

The spectrophotometric method is adopted. By adding an excess of barium chromate and reacting it with sulfate, barium sulfate precipitate is formed. After filtration to remove the precipitate, the sulfate content can be determined by measuring the absorbance of the solution .