Etching acid of chd, hch, osch

The large consumer of ftorovodorodny acid — the aluminum industry. Solution of fluorine hydride is applied to transparent etching of silicate glass (for example — drawing texts — for this purpose glass is covered with paraffin, cutting openings for etching). Opaque etching is received in fluorine hydride vapors. For etching of silicon in the semiconductor industry. As a part of etching, etching and polishing mixes, solutions for electrochemical processing of stainless steel and special alloys. Receiving fluorides, silicofluorides and borftorid, fluororganic connections, and also corresponding acids (kremneftorovodorodny acid and borftorovodorodny acid), synthetic lubricating oils and plasts. For dissolution of silicates in different analyses.