Sodium hydrosulfite. iipropati Physical nemichiza. isicelo

Sodium hydrosulfite - yikhompawundi ezingaphiliyo, akukho namnye ezibengezelayo i sodium iacid kabi acid ukubola (E222) kunye antioxidant. Kuye ezingwevu izakhiwo. It has ifomula yemichiza ilandelayo: NaHSO3.

Iipropati Physical sodium hydrosulfite:

1. Le ngumgubo emhlophe kokuba ithinti buthathaka nombala.
2. ubunzima izinyo ka 104.061 g / Mol, mninzi - 1,48 g / santimetr³.
3. Ingongoma yokunyibilika iqondo 150 C.
4. lula enyibilikayo emanzini (H2O) yaze yangxenga ifuthe lomanyano alkalis.

Iimpawu imichiza sodium hayidroksayidi:

1. ukubola xa itshiswe:

2NaHSO3 (sodium hydrosulfite) = Na2SO3 (sodium sulfite) + SO2 (sulphur dioxide uyakhululwa njenge gas) + H2O (amanzi)

2. asidi lokubola:

HCl + NaHSO3 (zehydrochloric acid) = NaCl (sodium chloride) + SO2 (sulphur dioxide) + H2O (amanzi)

3. alkalis lokubola:

NaHSO3 + NaOH (hayidroksayidi) = Na2SO3 (sodium sulfite) + H2O (amanzi)

4. oksijini Oxidized:

+ O2 = 4NaHSO3 2Na2SO4 (sodium sulfate) + 2SO2 (sulphur dioxide, ngokomphushu) + H2O (amanzi)

Indlela ukufumana sodium hydrosulfite?

ezi ndlela zilandelayo nga ukufumana ubutyebi;

1. Xa indlela sodium hayidroksayidi kunye oxide wesalfure:
NaOH (sodium isiseko) + SO2 (sulphur oxide) = NaHSO3 (sodium hydrosulfite)

2. Xa indlela (bushushu) sodium dithionite ngamanzi kunye zehydrochloric acid:
2Na2S2O4 (sodium dithionite) + H2O (amanzi) + HCl (zehydrochloric acid) = 2NaHSO3 (sodium hydrosulfite) + S (isalfure, kwenze njengoko a) + NaCl (sodium chloride)

3. Esebenzisa sokungamelani apho esinxibelelana isodium dithionite, amanzi neoksijini:
2Na2S2O4 (sodium dithionite ngohlobo exutywe) + 2H2O (amanzi) + O2 (oksijini) = 4NaHSO3 (sodium hydrosulfite)

Ukusetyenziswa sodium hydrosulfite:

- ukukhanya, iikhemikhali kunye namanye amashishini;

- kushishino yokutya kusetyenziswa njengento antioxidant okanye ukubola;

- ezisetyenziswa phantse zonke iiwayini nezakuthengiswa kwiimalike (iimpawu chemical sodium hydrosulfite kulo mzekelo kunceda ukuthintela igcwala nokulondoloza isongo zisele);

- osetyenziswa ukunkonkxa ziintlahlela ukulwa iintsholongwane nokuzithintela Browning;

- in yidayi kwaye ezingwevu izicwili owahlukileyo njenge ukubola;

- asuse idayi esebenzayo inkqubo bokudaya yomqhaphu;

- ukuze abe yidayi polyesters zokuhlanjululwa reductive;

- njengoko ukubola kwi sokukhanyisa ngayo amalaphu kunye njenge arhente nokunciphisa ukuba nedayi VAT;

- in hormone Engineering isetyenziswa ukwenzela ukugcina iimeko anaerobic kwi reactor.

Sodium hydrosulfite yityhefu ebantwini?

sinawo into ekuthethwa kungomlinganiselo ngokugqithisileyo kunokubangela ukusabela namachiza okanye nezidlo. Nge elinethoba NaHSO3 ngonyaka wamakhulu (njengoko potassium bisulfite, E 228) akuvumelekanga eUnited States ukusetyenziswa iziqhamo ekrwada nemifuno emva inani lamatyala, ukufa. sodium hydrosulfite kubangela izifo ezahlukeneyo kwinkqubo yokwetyisa. Ngokutsho EU umyalelo kwi izinto eziyingozi ebantwini, E 222 additive bobabo kwiqela kweekhemikhali eziyingozi. E Ukraine, i-Russian Federation kunye ubuncwane livunyelwe ukusetyenziswa kuphela kunye nokugcina engqongqo zobugcisa.

Ukusetyenziswa sodium bisulfate kushishino yokutya

Le nto isetyenziswa kushishino ukutya ekuthiwa E 222. Oku kutya supplement imvelaphi eyenziweyo ukuba inqanaba eliphezulu ingozi. Kusetyenziso elide ngendlela ebangela umonakalo omkhulu umzimba. Ngenxa kwipropati ukuze kuthintelwe kuveliswe kunye nokukhula ezincinane kunye neentsholongwane isetyenziswe njengento antioxidant kunye ukubola. Kwimeko-bume asidi kunye sodium sulfite abole ukuba iikhompawundi sulphur-equlethe nesalfure ngokwayo.

uncedo lokuqala ukuba ityhefu

Kuyanconywa ukuba aphumle kwaye ugcine abangenazimpahla zifudumeleyo, eyomileyo kwaye ucocekile, kwakunye umoya. Nesikhumba namehlo kufuneka zihlanjwe ngamanzi abandayo. Eshe mayimgwebe bandage aseptic. Okulandelayo, ubize inqwelo yezigulana.