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GLASS ETCHED BY HYDROFLUORIC ACID
Hydrofluoric Acid Dislodges Oxygen From Its Bond
Glass, mainly the compound SiO2, is unaffected by other acids. HF acid reacts with SiO2 yielding SiF and H20 and having the ability to frost areas of glass that it contacts.
Copyright:© 1987 Richard Megna - Fundamental Photographs
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