Hydrofluoric acid (HF), an aqueous form of hydrogen fluoride (Lewis 1993), typically emits a colorless irritating gas at room temperature (Hance, Solomon, Salmon, Fall, & Cass 1997). This highly corrosive, commonly used inorganic compoun... J Alters 被引量: 0发表: 2002年 Holocene environmen...
Process for the manufacture of 1,1-difluoroethane by liquid-phase fluorination of 1,2-dichloroethane using hydrofluoric acid in the presence of a Lewis acid as catalyst and of FeCl 3 as cocatalyst. Process for the manufacture of 1,1-difluoroethylene employing it....
improvement of quality of natural gas with a catalyst trifluorometansolfonico acid, hydrofluoric acid and a lewis acid.GEORGE ANDREW OLAH
Dissolution rates are high in 20 per cent pitric-3 per cent hydrofluoric acid mixtures at temperatures above 25C.R. H. J. GerckeLivermore Research and Development Company California Research and Development CompanyD. LewisLivermore Research and Development Company California Research and Development ...
hydrofluoric acid-free synthesis route for MIL-101(Cr)-SO3H, proposing acetic acid and nitric acid as modulator alternatives. Four MIL-101(Cr)-SO3H samples were prepared: one without any modulator and the other three using a similar volume of either hydrofluoric acid, acetic acid, or nitric ...
In view of the inhibition of the dissolution process in mixed acid, we refer to the combination of precipitated SPPs (β-Nb) along with the oxides of Zr and Nb as a passivation layer. To further investigate the compositional structure of the passivation layer, the BP/M5 sample was analyzed...