硫酸锰的测试方法英文版本.pdfVIP

Method ofAnalysis Method ofAnalysis MMeetthhoodd ooffAAnnaallyyssiiss Name of Product: Manganese Sulphate Monohydrate � The manganese sulphate Content and Mn content: � The manganese sulphate Content and Mn content: �� TThheemmaannggaanneesseessuullpphhaattee CCoonntteennttaannddMMnnccoonntteenntt:: F_NCP_SL_TJJ_0180 F_NCP_SL_TJJ_0180 FF__NNCCPP__SSLL__TTJJJJ_ 1. Range: 1. Range: 11..RRaannggee:: This method used in the testing the content of MnSO4 and Mn. 2. Principles: 2. Principles: 22..PPrriinncciipplleess:: 2+ 3+ In medium of phosphoric acid, turn MN to Mn using Ammonium Nitrate under o 220~240 C, use Ammonium Ferrous Sulfate as the director to test the content. 3. Reagent: 3. Reagent: 33..RReeaaggeenntt:: 3.1 Phosphoric Acid 3.2 Ammonium Nitrate 3.3 Sobium CarbonateAnhybldrous 3.4 N-Phenyl-o-anthanilic Acid, 2g/L 3.5 Mixture of Sulphuric Acid and Phosphate Acid 3.6 C(1/6K2Cr2O7), 0.1mol/L 4. Processure of the operation: 4. Processure of the operation: 44..PPrroocceessssuurreeooff tthheeooppeerraattiioonn:: Weight 0.5g sample in 250ml bottle with a little water � add 20mL Phosphoric Acid � heat o o to 220~240 C � add 2g Ammonium Nitrate � cool to 70 C � add 100mL water, wave until soluble and cool to room temperature� add Ammonium Ferrous Sulfate until the solution turns to light red � add N-Phenyl-o-anthanilic Acid until the solution turns yellow. 5. Result Calculate 5. Result Calculate 55..RReessuullttCCaallccuullaattee X1-- The consistency of MnSO4·H2O: cV X 0.1690 X1(%)= x100 m X2-- The consistency of Mn: cV1 X 0.05494 X2(%)=x100 m c——The consistency of the solution of Ammonium