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Aleke wogblɔa bisphenol A BPA kpuie?
Bisphenol A BPA ƒe Kpɔɖeŋu Kpuie Wowɔ bisphenol A (BPA) le gɔmedzedzea me le ƒe 1936 me abe estrogen si wowɔ ene, fifia wowɔa bisphenol A (BPA) le ƒe sia ƒe ƒe agbɔsɔsɔ si wu pounde biliɔn 6 me. Wozãa Bisphenol A BPA wu abe xɔtunu na polycarbonate plastics, siwo wokpɔna le nusiwo le abe vidzĩ b...Xlẽ nu geɖe -
Nukae nye bisphenol A zazã le anyime?
polycarbonate kple epoxy ƒe aŋɔwo. Wozãnɛ hã le mɔ̃ɖaŋunu veviwo abe polysulfone ene wɔwɔ me, kpakple tetrabromobisphenol A, si wozãna geɖe abe dzotsinu ene. Polycarbonate (si zãa bisphenol A wu) nye atike si mevivina o, meʋẽna lilili o, aɖi mele eme o, eye wòtrɔna...Xlẽ nu geɖe -
nukae wozãna na bisphenol a bpa?
Wozãa bisphenol a bpa geɖe le polymer nu vovovowo wɔwɔ me, abe epoxy resins, polycarbonates, polysulfones, phenolic unsaturated resins, polyphenylene ether resins, polyaryl compounds, polyetherimides, tetrabromobisphenol A, PVC dzoxɔxɔdzidzenuwo, rababa antioxidants, agbledede...Xlẽ nu geɖe -
Nukae nye bisphenol a ƒe dzoxɔxɔ?
Bisphenol A (BPA), si wogayɔna be diphenylolpropane alo (4-hydroxyphenyl)propane, wɔa prismatic kristalo le ethanol si me wode tsii me kple kristalo siwo le abe aŋe ene le tsi me. Enye nusi ate ŋu atɔ dzo eye phenolic ƒe ʋeʋẽ si mesẽ o le eŋu. Eƒe dzoxɔxɔ nye 157.2°C, eƒe dzoxɔxɔ nye 79.4°C, eye bisphenol a ƒe dzoxɔxɔ nye 2...Xlẽ nu geɖe -
Nukae nye Bisphenol A?
Bisphenol A (bpa) Nyatakaka Veviwo Bisphenol A, si wogayɔna be BPA, nye lãmenugbagbevi si ƒe molecule ƒe nɔnɔme nye C12H13O2. Le dɔwɔƒewo la, wozãnɛ le nusiwo nye polycarbonate (PC) kple epoxy resins wɔwɔ me. Tso ƒe 1960-awo me la, wozãa BPA le plast wɔwɔ me...Xlẽ nu geɖe -
Aleke woawɔ sodium hydrosulfite ƒe amadede ɖeɖeɖamɔ̃a ŋudɔe?
Nutoa me ƒe ɖiƒoƒo ɖeɖeɖa mɔnu na awu ɣiwo Sodium hydrosulfite Kplu Tsi ƒe Mɔnu Ne ɖiƒoƒo le teƒe ɖeka la, zã kplu si wowu enu hena tsidede. Klɔ tsi dzodzoe agbɔsɔsɔme aɖe (si wu 90°C) ɖe kplua me. Tsɔ sodium hydrosulfite (si ƒe agbɔsɔsɔme anɔ abe 2.5%) de eme eye nàʋuʋui be wòaƒu. Immer...Xlẽ nu geɖe -
Nukawoe nye sodium dithionite ƒe anyinɔnɔ ƒomeviwo?
Dzɔdzɔmeŋusẽ ƒe Nɔnɔmewo: Wobu sodium dithionite be enye nusi ate ŋu axɔ dzo le Dzeside 1 me. Wogayɔnɛ be Rongalite Le asitsatsa gome la, ele nɔnɔme eve me: Na2S2O4·2H2O kple Na2S2O4 si me tsi mele o. Tsãtɔ nye kristalo ɣi nyui aɖe, gake evelia ya nye aŋɔ ɣi si me kɔ. Eƒe kpekpeme le ƒomedodo me nye...Xlẽ nu geɖe -
Nusi ɖea edzi: Sodium Hydrosulfite
Nusi ɖea edzi: Sodium Hydrosulfite Atike ƒe Ŋkɔ: Sodium dithionite. Ne wotsɔ sodium hydrosulfite sɔ kple nusiwo naa dzoxɔxɔ nɔa avɔwo ŋu la, megblẽa nu le avɔwo ŋu boo o. Woate ŋu azãe ɖe avɔ siwo wotsɔ ka vovovowo wɔ dzi evɔ womagblẽ nu le wo ŋu o, eyatae wotsɔ ŋkɔ nɛ be “hydrosulfite” (si fia be ele dedie). E...Xlẽ nu geɖe -
Akpa kae sodium hydrosulfite wɔna le avɔ ƒe ka me?
Ka Siwo Sɔ na sodium hydrosulfite sodium hydrosulfite sɔ na avɔ ka vovovowo, eyatae wotsɔ ŋkɔ nɛ be “Rongalite.” Ne wozãe tsɔ blea avɔa le dzoxɔxɔ gã me alo tsɔ ɖe ɖinuwo ɖa la, ele be avɔa ƒe kaawo nate ŋu anɔ te ɖe dzoxɔxɔ gã nu evɔ womagblẽ nu le wo ŋu o. Le certif...Xlẽ nu geɖe -
Afɔku kawoe le sodium hydrosulfite me?
Sodium hydrosulfite nye aɖi eye ate ŋu ado dziku na ŋkuwo kple gbɔgbɔtsixe ƒe ʋukawo. Wozãnɛ geɖe le avɔlɔ̃ƒewo tsɔ dea amadede si dzi ɖe kpɔtɔ, dzadzɛnyenye si dzi ɖena kpɔtɔna, agbalẽtata, amadede ɖeɖeɖa, kple seda, alẽfu, nylon, kple avɔ bubuwo blewu. Esi wònye be ga kpekpe aɖeke mele eme o ta la, avɔ siwo wotsɔ bleached wit...Xlẽ nu geɖe -
Nukae adzɔ ne wotsɔ sodium hydrosulfite de ya me?
Ne wotsɔ sodium hydrosulfite de ya me la, exɔa oxygen bɔbɔe eye wòwɔa oxidize. Exɔa tsi hã, si wɔnɛ be dzoxɔxɔ dona eye wònana wògblẽna. Ate ŋu aƒo ƒu ɖekae esime wòle ya si nye yame ƒe yame xɔm eye wòado aɖi ƒe ʋeʋẽ sesẽ aɖe. Na2S2O4 + 2H2O + O2 → 2NaHSO4 + 2[H] Dzoxɔxɔ alo nusiwo woatsɔ ado goe...Xlẽ nu geɖe -
Nukae nye sodium hydrosulfite ƒe dzɔdzɔmenunɔamesiwo?
Sodium hydrosulfite ƒe Dzɔdzɔmeŋusẽwo Wobu sodium hydrosulfite be enye nusi ate ŋu axɔ dzo si te ŋu sea tsidzadza ƒe Dzeside 1, si woyɔna hã be sodium dithionite. Woate ŋu adzrae le mɔ eve nu: tsi le eme (Na2S2O4·2H2O) kple esi me tsi mele o (Na2S2O4). Nɔnɔme si me tsi le la dzena abe kristalo ɣi nyui aɖe ene...Xlẽ nu geɖe