Ndi sodium hydrosulfite. Thupi ndi mankhwala katundu. ntchito

Sodium hydrosulfite - ndi pawiri zochita kupanga, chitsulo mchere wa sodium wochuluka acidic ndi sulfurous asidi usawonongeke (E222) ndi antioxidant. Izo whitening katundu. Iwo ali zotsatirazi mankhwala chilinganizo: NaHSO3.

thupi katundu wa hydrosulfite ndi sodium:

1. Ndi ufa woyera ndi chofooka grayish kulocha.
2. Molar misa 104.061 g / mol, kachulukidwe - 1,48 g / santimetr³.
3. Mfundo limatsogolera anali madigiri 150 centigrade.
4. Ndi mosavuta sungunuka m'madzi (H2O) ndi kuchepetsa alkalis.

The katundu mankhwala hydroxide ndi sodium:

1. kuwola ndinso pamene usavutike:

2NaHSO3 (sodium wochuluka hydrosulfite) = Na2SO3 (sodium wochuluka sulfite) + SO2 (woipa sulfure adzamasulidwa monga mafuta a) + H2O (madzi)

2. linakwiriridwa zidulo:

HCl + NaHSO3 (hydrochloric acid) = NaCl (sodium kolorayidi) + SO2 (sulfure woipa) + H2O (madzi)

3. linakwiriridwa alkalis:

NaHSO3 + NaOH (hydroxide) = Na2SO3 (sodium wochuluka sulfite) + H2O (madzi)

4. oxidized mpweya:

+ O2 = 4NaHSO3 2Na2SO4 (sodium wochuluka sulfate) + 2SO2 (sulfure dioxide, ukuphwera) + H2O (madzi)

Momwe ndi sodium hydrosulfite?

njira zotsatirazi zikhoza kukhala kupeza thunthu:

1. Mwa zimene hydroxide ndi sodium ndi okusayidi sulfure:
NaOH (sodium wochuluka m'munsi) + SO2 (okusayidi sulfure) = NaHSO3 (sodium wochuluka hydrosulfite)

2. Ndikulumbira anachita (firiji) wa sodium wochuluka dithionite ndi madzi ndi acid amathiridwa:
2Na2S2O4 (sodium wochuluka dithionite) + H2O (madzi) + HCl (hydrochloric acid) = 2NaHSO3 (sodium wochuluka hydrosulfite) + S (sulfure, precipitate monga a) + NaCl (sodium kolorayidi)

3. Kudzera anachita zimene interacts ndi sodium dithionite, madzi ndi mpweya:
2Na2S2O4 (sodium wochuluka dithionite mu mawonekedwe kuchepetsedwa) + 2H2O (madzi) + O2 (mpweya) = 4NaHSO3 (sodium wochuluka hydrosulfite)

Ntchito hydrosulfite ndi sodium:

- kuwala, mankhwala ndi mafakitale ena;

- makampani chakudya ntchito monga antioxidant kapena usawonongeke;

- ntchito pafupifupi vinyo onse anafuna kuti katundu (katundu mankhwala hydrosulfite ndi sodium Pankhaniyi kumathandiza makutidwe ndi okosijeni ndi kusunga kukoma kwa kumwa);

- ntchito kumalongeza zipatso kumenyana majeremusi ndi kuteteza browning;

- mu ankaudaya ndi whitening zimakhala zosiyana ntchito monga usawonongeke;

- kuchotsa utoto zotakasika nsalu mu utoto ndondomeko ya thonje;

- kwa ankaudaya polyesters ayeretsedwe reductive;

- monga usawonongeke mu oyeretsa nsalu ndi monga nthumwi kuchepetsa kwa nsalu moŵa;

- mu amuzolengedwa Engineering ntchito kuti asunge zinthu anaerobic mu riyakitala lapansi.

Sodium hydrosulfite ndi poizoni kuti anthu?

tili ndi thunthu mu funso woipa kwambiri zingachititse aakulu thupi lawo siligwirizana. Ndi naintini eightieth chaka NaHSO3 (monga bisulfite potassium E 228) ndikoletsedwa mu United States ntchito pa zipatso zosaphika ndi masamba pambuyo zingapo zina, imfa. ndi sodium hydrosulfite kumayambitsa matenda osiyanasiyana a dongosolo m'mimba. Malinga ndi langizo la EU pa zinthu ndi owopsa kwa anthu, E 222 zowonjezera uli gulu la mankhwala woopsawo. Mu Ukraine, ndi Russian Federation ndi thunthu amaloledwa ntchito yekha ndi mwambo okhwima luso.

Ntchito bisulfate ndi sodium makampani chakudya

Nkhanizi ntchito makampani chakudya otchedwa E 222. Izi chakudya enaake kupanga chiyambi ndi mkulu mlingo wa ngozi. Mu ntchito yaitali mwadongosolo amachititsa mavuto aakulu kwa thupi. Chifukwa chuma kuti ziletsa kubalana ndi kukula kwa tizilombo ndi tizilombo ntchito ngati antioxidant ndi usawonongeke. M'madera acidic ndi sulfite ndi sodium linawola kuti mankhwala sulufule munali ndi sulfure yokha.

thandizo kwa poyizoni

Ndi bwino kupuma ndi kufunda, wouma ndi woyera zovala, komanso mpweya wabwino. Khungu ndi maso ayenera rinsed ndi madzi ozizira. Ndi amayaka ayenera kuumiriza aseptic bandeji. Kenako, itanani ambulansi.