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aluminum sulfate waH

10 vatlhvI' sample blend tIn mInDu'Daj 'ej boch 'ej aluminium salt ('oH-2) sulfates ('oH-29) je ngong vaj be. solubility pIm Hergh soluble qaStaHvIS bIQ, insoluble neH ethanol. method ot-42. lo'laHghach 5 vatlhvI' ph aqueous 2.9 pagh raghpu'bogh, HIvje' electrode.

'a ghIH poj: ngI' accurately 4 g sample, 250 ml volumetric flask lan, ngoS 'ej later DuD bIQ. taS tu'lu'be' vaj 250 ml beaker 10 ml, 0.05mol chel ghap disodium edta (ethylene diamine tetraacetic pey disodium salt) taS 25.0 ml l 'ej ph 4.5 (77.1 g 57 ml acetic pey ammonium 'ej acetate 'ej bIQ muq 1000 ml) buffer 20 ml, yISeH pub 5 min. qaSpu'DI' cooling, alcohol chel. 50 ml dithizone 'ej taS (rut-94) 2 ml. Titration 0.05mol ghap taS wov Doqqu' 'ej wov Doq, poStaHvIS blank titration sulfate l zinc. 0.05mol ghap equivalent aluminum sulphate al2 l per disodium edta (ethylene diamine tetraacetic pey disodium) ml (so4) 3 8.554 mg pagh sulfate-Sev 16.66 mg.


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