| A New Method for Rapid Estimation of Phosphate
in Ceramics and Related Materials |
S. KUMAR, S. DAS GUPTA AND B. C. SINHA
Pages : 82-85
DOI : 10.1080/0371750X.1967.10855590 |
| Abstract |
| An indirect complexometric method has been described for rapid and accurate
estimation of phosphate in ceramics and related materials such as opal glass, bone
china, bone ash, rock phosphate etc. Phosphate is precipitated as zirconyl phosphate
with a known quantity of Zr (IV) and the excess of Zr {IV) is back titrated with EDT A
in IN nitric acid. Except fluorine, other elements do not interfere. Procedure for
complete removal of fluorine, if present or introduced during opening of the sample,
has also been described. The rime taken for the estimation ranges from 1! hrs to 3! hrs
depending on the nature of sample.
Introduction |
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