Nzira yeBisphenol A BPA Sulfuric Acid inoshandiswa sei?
Bisphenol A bpa Nzira yeSulfuric Acid
Phenol neacetone zvinosangana ne condensation reaction mu sulfuric acid ine huwandu hwakawanda hwe 72.5%–73.0% pa 35–45°C. Chigadzirwa chinozogezwa nemvura, choiswa crystallized, choparadzaniswa ne centrifugation, uye choomeswa kuti chiwane bisphenol A yakakodzera kushandiswa kwe epoxy resins uye flame retardants. Mwero wekushandiswa patani yechinhu ichi ungangoita 0.925 matani e phenol, 0.285 matani e acetone, uye 0.500 matani e sulfuric acid (98% pureness).
Nzira iyi yeBisphenol A bpa ine michina nemaitiro ari nyore. Zvisinei, inosangana nekushandiswa kwezvinhu zvakabikwa zvakanyanya, zvichikonzera kudhura kwakanyanya kwezvigadzirwa. Inokonzerawo ngura kumidziyo, mapaipi, mavharuvhu, nenzvimbo yekugadzira, ukuwo ichigadzira marara akawanda. Uyezve, mhando yechigadzirwa hachisviki pazvinodiwa pakugadzira polycarbonate kana epoxy resins yemhando yefood-grade.