WebThe formation of nanoparticles and the mechanism of their formation in a blend of a thermotropic liquid crystalline polyester (LCP) and the zinc salt of a lightly sulfonated polystyrene ionomer (Zn-SPS) were investigated using Fourier transform infrared (FTIR), thermogravimetric analysis (TGA), and gas chromatography–mass spectroscopy … Web19. nov 2024 · The key function of PEMs is to efficiently and selectively conduct certain mass while blocking the permeation of the others. The state-of-the-art PEM is Nafion, which is a perfluorosulfonic acid ionomer with outstanding proton conductivity and excellent chemical stability.
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Web15. dec 2024 · It is well-known that the sulfonation degree (DS) of aromatic syntan is an important factor affecting its retanning performances. But the quantitative relation … WebManipal 2009: Sulphonation of phenol with conc. H 2 SO 4 at 288-293 K gives (A) o-phenol sulphonic acid (B) sulphanilic acid (C) p-phenol sulphonic ac texas ten shot tf2
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WebDescription About Phenol, also known as carbolic acid and phenic acid, is an organic compound with the formula C 6 H 5 OH. It is a white crystalline solid at room temperature that solidifies at 41°C (106°F). The molecule consists of a phenyl (-C 6 H 5) group, bonded to a hydroxyl (-OH) group. WebPyrogallol possesses importance as a spectrophotometric reagent in the determination of niobium and tantalum. The absorptions of niobium and tantalum complexes are usually measured at 340 and 335 nm, respectively. Web2. máj 2024 · This is a presentation on sulphonic acid and phenol (aromatic compounds) ... • Sulfonation. 10. Pharmaceutical uses • As a antiseptic • In aspirin • As an topical … texas tenors tour schedule 2021