TALA FOU
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Tulaga Fa'apitoa mo S...
2021-07-09
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Siata tafe ole sodium formald...
2021-07-09
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Talosaga ma fa'agaioiga fa'avae...
2021-07-09
O a meatotino ma fa'aoga autu o le rongalite?
Igoa: Sodium formaldehyde sulfoxylate; Rongalite C lumps; Rongalite dihydrate;
Sodium bisulfoxylate formaldehyde;sodium hydroxymethane sulfinate
Fuafuaga mole:NaHSO2-CH2O-2H2O
CAS No.:149-44-0/6035-47-8
Meatotino: E lauiloa foi o le sodium formaldehyde bisulfate (rongalite).
Rongalite pa'u translucent tioata rhombohedral papa'e po'o ni vaega laiti.
Fa'aaliga manino 1.80-1.85g/cm3. mea liusuavai 64 ℃ (fa'amuta i lona vai tioata). E pala ile 120°C.
Solu fua ile vai, solu teisi ile ava malosi.
O le masima anhydrous e sili atu ona mautu. Ae ui i lea, e faasolosolo malie ona pala i le ea susu. Malosi fa'aitiitia ile vevela maualuga.
O le auala masani e tolu-laasaga gaosiga mo le paʻu lualite e aofia ai le paʻu zinc ma le vai e fai ai se slurry,
pasi i totonu o le sulfur dioxide mo le tali atu e maua ai le zinc dithionite, ona faaopoopo lea o le formaldehyde faaopoopo,
fa'aitiitiga o le pa'u o le zinc ona fa'afeagai lea ma le sodium hydroxide e maua ai.
Ole auala fou ole la'asaga e tasi e fa'aaogaina ai le sodium metabisulphite e fai ma mea mata
ma fa'amae'aina i le la'asaga tasi e ala i le fa'aitiitia o le pauta o le zinc ma le fa'aopoopoina o le formaldehyde.
E faʻaaogaina e avea o se sui tusi ata ma faʻaititia le sui mo le lolomiina ma le valiina,
mo le tuufaatasia o le paʻu, mo le gaosiga o suka,
mo le gaosia o lanu o le indigo ma le faʻaitiitia o vali.
Ole sodium formaldehyde sulfoxylate fa'atau atu e Rongda Chemical o lo'o gaosia ile fa'aogaina ole faiga fou.
Faatasi ai ma tulaga lelei nei:
pito i lalo ole u'amea mamafa
ofo atu auaunaga sili pe a uma ona faatau atu
ta'uleleia pito i luga i fanua kemisi