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  1. Effect of hydrofluoric acid concentration and etching time on the ...

    Jan 1, 2023 · The micro-mechanical and chemical bonding offered by the HF acid etching followed by silane characterize the gold-standard for treating glass-ceramics in adhesive …

  2. Chemical etching of glasses in hydrofluoric Acid: A brief review

    Jan 1, 2022 · At room temperature, they can only be dissolved in hydrofluoric acid and other HF-containing aqueous solutions [1]. Hence, for a number of applications, controlled dissolution in …

  3. Hydrofluoric Acid - an overview | ScienceDirect Topics

    Hydrofluoric acid (HF) is the most effective mineral acid for breaking up strong Si–O bonds to form SiF6− 2 ions in acidic solution. Silicates are converted to volatile SiF 4, which will be lost in …

  4. Hydrofluoric Acid - an overview | ScienceDirect Topics

    Hydrofluoric Acid HF is a solution of hydrogen fluoride in water. While this acid is extremely corrosive and difficult to handle, it is technically a weak acid.

  5. Precisely sensing hydrofluoric acid by photonic crystal hydrogels

    Mar 15, 2023 · It is a great challenge to detect hydrofluoric acid (HF) with high precision, good selectivity, and visual readouts characteristics. Herein, a new pho…

  6. Kinetic mechanics of the reactions between HCl/HF acid mixtures …

    Aug 1, 2016 · Hydrofluoric acid in the mixtures dissolves siliceous minerals. However, due to the complex compositions of sandstone minerals, the mechanisms of acid-rock reactions are …

  7. Fluoride ion and hydrofluoric acid detection via silicon nanosheet ...

    Oct 15, 2023 · Fluoride ion (F–) and hydrofluoric (HF) acid are widely used, but they are highly toxic to the health and the natural environment. Sensors based on th…

  8. HF/HCl acid resistance mechanisms of alumina ceramics in the Al

    Mar 1, 2019 · Silicon compounds in raw materials are the main reason for the low HF/HCl acid resistance of alumina ceramics. Y2O3 can improve the acid resistance of…

  9. Anhydrous Hydrofluoric Acid - an overview - ScienceDirect

    Like hydrochloric acid, anhydrous hydrofluoric acid is gaseous. It is highly soluble in water. Action on aluminium This is the halogen acid that attacks aluminium most. In an acid at a …

  10. HF acid treatment induced nitrogen vacancies enriched g-C

    Feb 16, 2025 · In this study, g-C 3 N 4 was synthesized by calcining urea in a muffle furnace, and then g-C 3 N 4 was treated by hydrofluoric acid (HF) acid. HF etching can increase the specific …