ISO 6677:1983
$12.35
Hexafluorosilicic acid for industrial use — Determination of available fluorine content — Potentiometric method after distillation
| Published By | Publication Date | Number of Pages |
| ISO | 1983-05 | 7 |
Covers a method consisting in separating the fluorine from a test portion by distillation in the presence of perchloric acid, followed by potentiometric titration of the distillate with lanthanum nitrate solution using a fluoride ion-selective electrode. Is applicable to products having total available fluorine contents in the range between 15 and 35 % (m/m).
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