718688

ISO 5439:1978

Acid-grade fluorspar -- Determination of available fluorine content -- Potentiometric method after distillation

standard by International Organization for Standardization , 09/01/1978

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Full Description

Specifies a potentiometric method using a fluoride-ion sensitive electrode. After destillation of fluorine from the test portion in the presence of perchloric acid the distillate shall be titrated with lanthane nitrate solution. Applicable to products having a calcium fluoride content greater than 90 %.

 

Product Details

Published:
09/01/1978
Number of Pages:
6
File Size:
1 file , 380 KB
Note:
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