Assertion: hydrogen fluoride's amount | /r/HasProperty | based on the weight of sulfuric acid
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Source sentences:
text: Patented Oct. 8, 1968 ABSTRACT OF THE DISCLOSURE Process for producing hydrogen fluoride from fluorspar which includes forming a slurry of fluorspar in sulfuric acid and incorporating in the slurry a minor amount of hydrogen fluoride, fluorosulphonic acid or their mixtures based on the weight of sulfuric acid employed.