Izindaba
-
Iyini i-bisphenol i-bpa esetshenziselwa yona?
I-Bisphenol a bpa isetshenziswa kabanzi ekukhiqizweni kwezinto ezahlukahlukene ze-polymer, njenge-epoxy resins, i-polycarbonates, i-polysulfones, i-phenolic unsaturated resins, i-polyphenylene ether resins, i-polyaryl compounds, i-polyetherimides, i-tetrabromobisphenol A, iziqinisi zokushisa ze-PVC, ama-antioxidants erabha,...Funda kabanzi -
Iyini iphuzu lokubilisa le-bisphenol a?
I-Bisphenol A (BPA), eyaziwa nangokuthi i-diphenylolpropane noma (4-hydroxyphenyl)propane, yakha amakristalu e-prismatic ku-ethanol encibilikisiwe kanye namakristalu afana nenaliti emanzini. Iyasha futhi inephunga elincane le-phenolic. Iphuzu layo lokuncibilika lingu-157.2°C, iphuzu le-flash lingu-79.4°C, kanti iphuzu lokubila le-bisphenol a lingu-2...Funda kabanzi -
Iyini i-Bisphenol A?
Ulwazi Oluyisisekelo lwe-Bisphenol A (bpa) I-Bisphenol A, eyaziwa nangokuthi i-BPA, iyinhlanganisela yezinto eziphilayo enefomula yama-molecule C₁₅H₁₆O₂. Kwezimboni, isetshenziswa ekukhiqizweni kwezinto ezifana ne-polycarbonate (PC) kanye nama-epoxy resins. Kusukela ngawo-1960, i-BPA ibilokhu isetshenziswa ekukhiqizweni kwepulasitiki...Funda kabanzi -
Ungayisebenzisa kanjani i-sodium hydrosulfite color remover?
Indlela Yokususa Amabala Endawo Yezingubo Ezimhlophe Indlela Yokucwilisa Indebe Ye-Sodium hydrosulfite Uma kukhona amabala asendaweni, sebenzisa indebe ehlanganisiwe ukuze ucwilise. Thela inani elithile lamanzi ashisayo (ngaphezu kuka-90°C) endebeni. Faka i-sodium hydrosulfite (okuhlushwa cishe okungu-2.5%) bese uvuselela ukuze kuncibilike. Faka...Funda kabanzi -
Yiziphi izinhlobo zokuba khona kwe-sodium dithionite?
Izakhiwo Zomzimba: I-Sodium dithionite ihlukaniswa njengento evuthayo yeBanga 1. Yaziwa nangokuthi i-Rongalite. Kwezentengiselwano, ikhona ngezindlela ezimbili: i-Na₂S₂O₄·2H₂O kanye ne-Na₂S₂O₄ engenamanzi. Eyokuqala iyikristalu emhlophe ecolekile, kanti eyesibili iyimpuphu ephuzi ekhanyayo. Ubuningi bayo obuhlobene...Funda kabanzi -
I-ejenti yokunciphisa: i-Sodium Hydrosulfite
I-Agent Yokunciphisa: I-Sodium Hydrosulfite Igama Lamakhemikhali: I-Sodium dithionite. Uma kuqhathaniswa nama-oxidizing agents, i-sodium hydrosulfite ibangela umonakalo omncane kakhulu ezindwangu. Ingasetshenziswa ezindwangu ezenziwe ngemicu eyahlukene ngaphandle kokulimaza, yingakho igama elithi “hydrosulfite” (okusho ukuphepha kwayo)....Funda kabanzi -
Iyini indima ye-sodium hydrosulfite emicu yezindwangu?
Ama-Fiber Afanelekela i-sodium hydrosulfite I-sodium hydrosulfite ifanelekela imicu ehlukahlukene yendwangu, yingakho ibizwa ngokuthi “i-Rongalite.” Uma isetshenziselwa ukumhlopheza noma ukususa amabala okushisa okuphezulu, imicu yendwangu kumele ikwazi ukumelana namazinga okushisa aphezulu ngaphandle kokulimala. Ngokwesiqiniseko...Funda kabanzi -
Yiziphi izingozi ze-sodium hydrosulfite?
I-sodium hydrosulfite inobuthi futhi ingacasula amehlo kanye ne-mucosa yomgudu wokuphefumula. Isetshenziswa kabanzi embonini yezindwangu ukunciphisa ukudaya, ukunciphisa ukuhlanza, ukuphrinta, ukususa umbala, kanye nokumhlophelisa usilika, uboya, inayiloni, nezinye izindwangu. Njengoba ingenazo izinsimbi ezisindayo, izindwangu zimhlophelisa...Funda kabanzi -
Kuzokwenzekani uma i-sodium hydrosulfite ivezwa emoyeni?
Uma ibekwe emoyeni, i-sodium hydrosulfite imunca kalula umoya-mpilo futhi i-oxidize. Iphinde imunce umswakama, ikhiqize ukushisa futhi iholele ekuwohlokeni. Ingahlangana ndawonye ngenkathi imunca umoya-mpilo womoya-mpilo futhi ikhiphe iphunga elimnandi le-asidi. I-Na₂S₂O₄ + 2H₂O + O₂ → 2NaHSO₄ + 2[H] Ukushisa noma ukuvezwa...Funda kabanzi -
Ziyini izakhiwo zomzimba ze-sodium hydrosulfite?
I-Sodium hydrosulfite Izakhiwo Zomzimba I-Sodium hydrosulfite ihlukaniswa njengento evuthayo ezwela umswakama yebanga loku-1, eyaziwa nangokuthi i-sodium dithionite. Itholakala kwezentengiselwano ngezindlela ezimbili: i-hydrated (Na₂S₂O₄·2H₂O) kanye ne-anhydrous (Na₂S₂O₄). Ifomu eli-hydrated libonakala njenge-cryst emhlophe ecolekile...Funda kabanzi -
Yiziphi izinzuzo zokusebenzisa i-sodium hydrosulfite njenge-ejenti yokunciphisa?
I-Reducing Agent (Rongalite) Igama Lekhemikhali: I-Sodium hydrosulfite Uma iqhathaniswa nama-oxidizing agents, i-Rongalite ibangela umonakalo omncane kakhulu ezindwangu. Ingasetshenziswa ezindwangu ezenziwe ngemicu ehlukahlukene ngaphandle kokulimaza, yingakho igama elithi “Rongalite” (elisho “impuphu ephephile” ngesiShayina)...Funda kabanzi -
Amabhizinisi kufanele ayiphathe kanjani i-sodium hydrosulfite?
Kudingeka amabhizinisi ukuthi asebenzise uhlelo lokulawula olunabasebenzi ababili, olunezilawuli ezimbili lwe-sodium hydrosulfite. Okokuqala, i-warehouse kumele ibe nabasebenzi abaqokiwe bokuphatha futhi isebenzise uhlelo olunabasebenzi ababili, olunezilawuli ezimbili. Okwesibili, isikhulu sokuthenga kumele siqinisekise inani, ikhwalithi, kanye nokusetshenziswa okufanele...Funda kabanzi