 | Amir Chand |
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 | Determination of free acidity in aluminium sulphate and alum using hexamine and potassium fluoride as complexing agent
Author : Amir Chand ;Sen, N.K. ;Singh, S.
Source : Defence Science Journal ; Vol:12(1) ; 1962 ; pp 79-90
Subject : 54 Chemistry;546 Inorganic Chemistry
Keywords : Aluminium sulphate ;Hexamine ;Potassium fluoride
Abstract : The paper describes a modification effected in respect of the conventional fluoride method for determination of free acidity in aluminium sulphate and alum, by using hexamine as an acid binder in addition to potassium fluroide as complexing agent. |
| | Determination of ammonium sulphate in ammonia alum by formaldehyde reaction
Author : Amir Chand
Source : Defence Science Journal ; Vol:12(1) ; 1962 ; pp 68-78
Subject : 54 Chemistry;546 Inorganic Chemistry
Keywords : Ammonium salt ;Hydrolysable salt ;Potassium fluoride ;Aluminium sulphate ;Ammonium sulphate
Abstract : Existing methods for the estimation of ammonium salts in presence of hydrolysable salts have been reviewed. A new titrimetric method utilizing formaldehyde and potassium fluoride is described for its estimation in presence of aluminium sulphate. The method is accurate and rapid for routine analysis. |
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