https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h by: Sweeky Hsieh en-us 2021-10-21 02:48:34 UTC 2025-10-03 16:42:53 UTC hello@padlet.com sweeky_hsieh https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832303165 2021-10-21 02:49:21 UTC https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832303165 sweeky_hsieh https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832304504 In addition to being a highly corrosive liquid, hydrofluoric acid is also a powerful contact poison. Because of the ability of hydrofluoric acid to penetrate tissue, poisoning can occur readily through exposure of skin or eyes, or when inhaled or swallowed. Symptoms of exposure to hydrofluoric acid may not be immediately evident, and this can provide false reassurance to victims, causing them to delay medical treatment.]]> 2021-10-21 02:49:52 UTC https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832304504 sweeky_hsieh https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832306058 In dilute aqueous solution hydrogen fluoride behaves as a weak acid.
H2O + 2 HF ⇌  H+ + F− + H3O+⋅F− 
pKa = 3.17]]> 2021-10-21 02:50:31 UTC https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832306058 sweeky_hsieh https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832306874 Used to clean silicon wafers. In a similar manner it is also used to etch glass by treatment with silicon dioxide to form gaseous or water-soluble silicon fluorides. It can also be used to polish and frost glass.
SiO2 + 4 HF → SiF4(g) + 2 H2O
SiO2 + 6 HF → H2SiF6 + 2 H2O]]> 2021-10-21 02:50:51 UTC https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832306874 sweeky_hsieh https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832307789 Unlike other hydrohalic acids, such as hydrochloric acid, hydrogen fluoride is only a week acid in dilute aqueous solution.]]> 2021-10-21 02:51:14 UTC https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832307789 sweeky_hsieh https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832309654 Hydrofluoric acid is a solution of hydrogen fluoride in water. 
Solutions of HF are colourless, acidic and highly corrosive.]]> 2021-10-21 02:52:04 UTC https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832309654 sweeky_hsieh https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832313165 The  principal use of hydrofluoric acid is in organofluorine chemistry. Many organofluorine compounds are prepared using HF as the fluorine source, including Teflon, fluorocarbons, and refrigerants such as freon. Many pharmaceuticals contain fluorine.]]> 2021-10-21 02:53:33 UTC https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832313165 sweeky_hsieh https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832314429 “Hydrofluoric Acid.” Wikipedia, Wikimedia Foundation, 1 Aug. 2021, https://en.wikipedia.org/wiki/Hydrofluoric_acid. ]]> 2021-10-21 02:54:07 UTC https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832314429 sweeky_hsieh https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832681840 The Global Anhydrous Hydrofluoric Acid Market report provides segmentation, business areas, growth opportunities, current developments, market prospects, and valuable market forecast estimation. The Top Major Competitive Players are: Honeywell, Solvay, Ineos, Derivados del Flúor, Airproducts, Morita]]> 2021-10-21 06:33:47 UTC https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832681840 sweeky_hsieh https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832698587 Hydrofluoric Acid Alkylation Units, often referred to as HF Alky units, are process units used in petroleum refining to convert isobutane and alkenes into alkylate, which is used to make gasoline. ]]> 2021-10-21 06:43:21 UTC https://padlet.com/sweeky_hsieh/ij4vtg7myaq4bh4h/wish/1832698587