455830 Aldrich

Ammonium hydrogen difluoride

99.999% trace metals basis

Synonym: Ammonium bifluoride, Etching powder



25, 100 g in poly bottle


Used for the preparation of ammonium aminosilylfluorides1 and complex metal fluorides.2 Employed in a new hydrothermal synthesis of complex flourides NaHoF4 and NaEuF4; these interesting compounds have the fluorite structure and are important for solid-state lasers as well as for photoluminescence and magnetic characteristics3

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