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Acid decomposition procedure for the spectrophotometric determination of silica in rocks and minerals at room temperature

✍ Scribed by C.R.M. Rao; G.S. Reddi; T.A.S. Rao

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 212 KB
Volume: 268
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(92)85232-u

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✦ Synopsis

An acid decomposltlon procedure at room temperature for the spectrophotometnc determmatlon of slhca m rocks and minerals 1s described The sample solution IS prepared by treatment with hydrotluorlc acid and aqua regla at room temperature Unreacted fluoride ions are complexed Hrlth bone acid and the sdlca IS determined by the molybdenum blue method Accurate values were obtamed for a number of mtematlonal reference standards The entire procedure 1s carried out at room temperature Only plastic ware 1s used for the decomposltlon of the samples The method 1s thus ideal for large batch analyses

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