Litaba
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Bisphenol e sebelisetsoa eng, bpa?
Bisphenol a bpa e sebelisoa haholo tlhahisong ea thepa e fapaneng ea polymer, joalo ka li-resin tsa epoxy, li-polycarbonate, li-polysulfone, li-resin tsa phenolic unsaturated, li-resin tsa polyphenylene ether, metsoako ea polyaryl, li-polyetherimides, li-tetrabromobisphenol A, li-stabilizer tsa mocheso tsa PVC, li-antioxidants tsa rabara,...Bala haholoanyane -
Ntlha e belang ea bisphenol a ke eng?
Bisphenol A (BPA), e tsejoang hape e le diphenylolpropane kapa (4-hydroxyphenyl)propane, e etsa likristale tsa prismatic ka har'a ethanol e hlapolotsoeng le likristale tse kang nale ka metsing. E ka tuka 'me e na le monko o fokolang oa phenolic. Sebaka sa eona sa ho qhibiliha ke 157.2°C, ntlha ea flash ke 79.4°C, 'me ntlha ea ho belisa ea bisphenol a ke 2...Bala haholoanyane -
Bisphenol A ke eng?
Tlhahisoleseding ya Motheo ya Bisphenol A (bpa) Bisphenol A, e tsejwang hape e le BPA, ke motswako wa tlhaho o nang le foromo ya molek'hule C₁₅H₁₆O₂. Diindastering, e sebediswa tlhahisong ya thepa e kang polycarbonate (PC) le epoxy resins. Ho tloha ka bo-1960, BPA e sebediseditswe tlhahisong ya polasetiki...Bala haholoanyane -
Mokhoa oa ho sebelisa sesebelisoa sa ho tlosa mebala sa sodium hydrosulfite joang?
Mokhoa oa ho Hlobolla Matheba Sebakeng se Seng bakeng sa Liaparo tse Tšoeu Mokhoa oa ho Koebisa Kopi ea Sodium hydrosulfite Haeba ho na le matheba sebakeng se seng, sebelisa kopi e nang le matheba a lekaneng bakeng sa ho koebisa. Tšela metsi a chesang a itseng (a fetang 90°C) ka koping. Kenya sodium hydrosulfite (mahloriso a ka bang 2.5%) 'me u hlohlelletse ho qhala. Kenya...Bala haholoanyane -
Mefuta ea boteng ba sodium dithionite ke efe?
Litšobotsi tsa 'Mele: Sodium dithionite e arotsoe e le ntho e ka tukang ea Sehlopha sa 1. E boetse e tsejoa e le Rongalite. Khoebong, e teng ka mefuta e 'meli: Na₂S₂O₄·2H₂O le Na₂S₂O₄ e sa naeng metsi. Ea pele ke kristale e tšoeu e ntle, ha ea morao e le phofo e mosehla o bobebe. Botenya ba eona bo lekanyelitsoeng ke...Bala haholoanyane -
Moemeli oa ho Fokotsa: Sodium Hydrosulfite
Moemeli oa ho Fokotsa: Sodium Hydrosulfite Lebitso la Khemik'hale: Sodium dithionite. Ha e bapisoa le metsoako ea oxidizing, sodium hydrosulfite e baka tšenyo e nyane haholo masela. E ka sebelisoa masela a entsoeng ka likhoele tse fapaneng ntle le ho baka kotsi, ke ka lebaka leo lebitso la "hydrosulfite" (le bolelang polokeho ea eona). E...Bala haholoanyane -
Karolo ea sodium hydrosulfite likhoeleng tsa masela ke efe?
Li-Fiber tse Loketseng bakeng sa sodium hydrosulfite sodium hydrosulfite e loketse li-fiber tse fapaneng tsa masela, ke ka lebaka leo e bitsoang "Rongalite." Ha e sebelisoa bakeng sa ho soeufatsa kapa ho tlosa matheba mochesong o phahameng, li-fiber tsa masela li tlameha ho khona ho mamella mocheso o phahameng ntle le tšenyo. Mabapi le setifikeiti...Bala haholoanyane -
Likotsi tsa sodium hydrosulfite ke life?
Sodium hydrosulfite e chefo 'me e ka halefisa mahlo le mucosa ea methapo ea phefumoloho. E sebelisoa haholo indastering ea masela bakeng sa ho fokotsa ho daea, ho fokotsa ho hloekisa, ho hatisa, ho tlosa 'mala le ho soeufatsa silika, ulu, nylon le masela a mang. Kaha ha e na litšepe tse boima, masela a soeufalitsoe ka...Bala haholoanyane -
Ho tla etsahala'ng haeba sodium hydrosulfite e pepesetsoa moeeng?
Ha e pepesetsoa moeeng, sodium hydrosulfite e monya oksijene habonolo mme e etsa oxidize. E boetse e monya mongobo habonolo, e hlahisa mocheso mme e lebisa ho senyeheng. E ka kopana hammoho ha e ntse e monya oksijene ea sepakapaka mme e ntša monko o matla oa asiti. Na₂S₂O₄ + 2H₂O + O₂ → 2NaHSO₄ + 2[H] Ho futhumatsa kapa ho pepesehela...Bala haholoanyane -
Thepa ea 'mele ea sodium hydrosulfite ke efe?
Sodium hydrosulfite Thepa ea 'Mele Sodium hydrosulfite e arotsoe e le ntho e tukang e utloang mongobo ea Sehlopha sa 1, e tsejoang hape e le sodium dithionite. E fumaneha khoebong ka mefuta e 'meli: e nang le metsi (Na₂S₂O₄·2H₂O) le e se nang metsi (Na₂S₂O₄). Sebopeho se nang le metsi se hlaha e le kristale e tšoeu e tšesaane...Bala haholoanyane -
Melemo ea ho sebelisa sodium hydrosulfite e le ntho e fokotsang ke efe?
Moemeli ea Fokotsang (Rongalite) Lebitso la K'hemik'hale: Sodium hydrosulfite Ha e bapisoa le metsoako ea oxidizing, Rongalite e baka tšenyo e nyane haholo masela. E ka sebelisoa masela a entsoeng ka likhoele tse fapaneng ntle le ho baka kotsi, ke ka lebaka leo lebitso "Rongalite" (le bolelang "phofo e sireletsehileng" ka Sechaena)...Bala haholoanyane -
Likhamphani li lokela ho laola sodium hydrosulfite joang?
Ho hloka hore dikhamphani di kenye tshebetsong sistimi ya basebetsi ba babedi, taolo e habeli bakeng sa sodium hydrosulfite. Taba ya pele, ntlo ya polokelo e tlameha ho ba le basebetsi ba kgethilweng ba tsamaiso mme e kenye tshebetsong sistimi ya basebetsi ba babedi, e notlelang habeli. Taba ya bobedi, mohlanka wa theko o tlameha ho netefatsa bongata, boleng le disebediswa tse amehang...Bala haholoanyane