Iindaba- HUASHIL
IZINDABA ZOMTHETHO
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IiMfuno zobuGcisa kwi-S...
2021-07-09
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Itshathi equkuqelayo yesodium esesikweni...
2021-07-09
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Isicelo kunye nenkqubo iphuhlisa...
2021-07-09
Ukusetyenziswa kunye nophuhliso lwenkqubo ye-sodium formaldehyde sulfoxylate
I-Sodium sulfoxylate formaldehyde (NaHSO2 · CH2O · 2H2O),
Ikwabizwa ngokuba yi assodium formaldehyde sulfoxylate.
Igama lemveliso:Rongalite C.
Yibhloko emhlophe ekhanyayo enendawo yokunyibilika engama-64 ℃. Inokunciphisa okunamandla kumaqondo obushushu aphezulu kwaye inokuphela amalaphu adayiweyo.
Ke ngoko, isetyenziswa kakhulu njengearhente yokukhupha kwishishini lokuprinta kunye nokudaya, njenge-ejenti yokucoca kwi-rubber synthesis kunye neshishini leswekile.
Ngophuhliso kunye nokusetyenziswa kweemveliso, kwiminyaka yakutshanje, sele isetyenziswe kwishishini lesepha kunye nonyango lwezonyango njenge-antidote ye-Hg, i-Bi, i-Ba.
Ukuveliswa kwe-rongalite ngokuqhelekileyo kusebenzisa indlela yemveli enemigangatho emithathu, indlela yezinc powder-sulphur dioxide-formaldehyde.
Oko kukuthi, i-sulphur dioxide, i-zinc powder, kunye ne-formaldehyde zisetyenziswa njengezinto eziluhlaza, kunye ne-sulfure dioxide kunye ne-zinc powder isabela kwi-zinc dithionite (ZnS2O4), kwaye emva koko i-formaldehyde yokongeza, ukunciphisa i-zinc powder kunye ne-sodium hydroxide metathesis reaction ukwenza imveliso.
Ukuveliswa kwe-domeryrongalite kwakhona kusebenzisa ubugcisa besintu obukhankanywe ngasentla. Iimveliso zinikezelwa ikakhulu kwimarike yasekhaya, kwaye ezinye zithunyelwa kuMzantsi-mpuma Asia.
Oko sikuzisayo inkqubo entsha , oko kukuthi, inkqubo yokufumana imveliso kwi-sodium metabisulfite njengento eluhlaza ngokunciphisa i-zinc powder kunye nokongezwa kwe-formaldehyde kwinqanaba elinye.
Izinto eziluhlaza ziyancipha kwaye zongezwa kwi-kettle efanayo, kwaye zonke ii-reactants ziguqulwa zibe yimveliso, kwaye akukho nkunkuma.
Ukongeza kwiimveliso eziphambili, iphinda ivelise i-chemically pure zinc oxide (99.5%) iimveliso.
Inkqubo ineempawu zenkqubo emfutshane, iimeko zobugcisa ezizinzile, utyalo-mali oluphantsi lwezixhobo kunye nokusebenza okulula.
Kwinqaku elilandelayo, ndiza kwabelana ngenkqubo yemveliso enxulumene nesodium formaldehyde sulfoxylate.

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