Hydrosulfite sodium. guryaha jirka iyo kiimikada. codsiga

hydrosulfite Sodium - waa xarunta ah imanba, cusbo biraha of sodium ah acidic oo a acid sulfurous preservative (E222) iyo poesie ah. Waxa uu caddeeyo hantida. Waxay leedahay formula kiimikada soo socda: NaHSO3.

guryaha jirka ah ee hydrosulfite sodium:

1. Waa budo cad isagoo ah towns grayish daciif ah.
2. mass gaws of 104.061 g / mol, cufnaanta - 1.48 g / santimetr³.
3. dhibic barafku wuxuu ahaa 150 degrees Centigrade.
4. Waa dhaba L. biyo (H2O) iyo milo alkalis.

The guryaha kiimikada ee hydroxide sodium:

1. cawisa markii kululeeyo:

2NaHSO3 (sodium hydrosulfite) = Na2SO3 (sulfite sodium) + SO2 (baaruud dioxide la sii daayay sida gaaska a) + H2O (oo biyo ah)

2. acids giirte:

HCL + NaHSO3 (aashito) = NaCl (chloride sodium) + SO2 (baaruud dioxide) + H2O (oo biyo ah)

3. alkalis giirte:

NaHSO3 + NaOH (hydroxide) = Na2SO3 (sodium sulfite) + H2O (oo biyo ah)

4. oxygen oxidized:

+ O2 = 4NaHSO3 2Na2SO4 (sodium sulfate) + 2SO2 (baaruud dioxide, ka baxa) + H2O (oo biyo ah)

Sida loo helo hydrosulfite sodium?

hababka soo socda waxay noqon kartaa in la helo walaxda:

1. By reaction of hydroxide sodium la xabagta ah baaruud ah:
NaOH (saldhig sodium) + SO2 (xabagta baaruud) = NaHSO3 (sodium hydrosulfite)

2. By falcelinta (heerkulka qolka) ee dithionite sodium biyo iyo Aashito:
2Na2S2O4 (sodium dithionite) + H2O (oo biyo ah) + HCL (Aashito) = 2NaHSO3 (hydrosulfite sodium) + S (baaruud, soo dadajin sida a) + NaCl (chloride sodium)

3. Iyada oo la adeegsanayo ficil celin, taas oo falgalka dithionite sodium, biyaha iyo oxygen:
2Na2S2O4 (dithionite sodium foomka la badhxay) + 2H2O (oo biyo ah) + O2 (oxygen) = 4NaHSO3 (sodium hydrosulfite)

Isticmaalka hydrosulfite sodium:

- iftiin, kiimikada iyo warshadaha kale;

- in warshadaha cuntada waxaa loo isticmaalaa sida antioxidant ama ilaaliye ah;

- isticmaalaa in ku dhowaad dhammaan raagay loogu tala galay dhoofinta (guryaha kiimikada ee hydrosulfite sodium kiiskan caawisaa si looga hortago in lagu qayilo iyo ilaalin lahaa dhadhanka cabniinka);

- waxaa loo isticmaalaa qasaceyn miraha si ay ula dagaalamaan jeermiska iyo ka hortagga Browning;

- in dyeing iyo caddeeyo unugyada kala duwan waxaa loo isticmaalaa sida preservative ah;

- in meesha laga saaro formaldehyde falceliya habka dyeing of suuf ah;

- waayo, dyeing polyesters isdaahirinta reductive;

- sida preservative ee bleaching ah oo dhar iyo sida wakiilka ah yaraynta waayo, formaldehyde macsarada;

- in baayo Engineering waxaa loo isticmaalaa si ay u ilaaliyaan shuruudaha anaerobic in nuclear-ka.

hydrosulfite Sodium waa sun ugu ah dadka?

waxaan leenahay walaxda in su'aal ku uruureen xad-dhaaf ah waxay keeni kartaa cadaanyo daran. Iyadoo sagaal iyo toban NaHSO3 sano eightieth (sida bisulfite potassium, E 228) waa ka mamnuuc in Mareykanka loo isticmaalo on miraha iyo khudaarta cayriin ka dib markii tiro ka mid ah xaaladaha, dhimasho. hydrosulfite sodium sababa cudurada kala duwan ee nidaamka dheefshiidka. Sida laga soo xigtay dardaaranka EU oo ku saabsan walxaha in ay yihiin khatar ugu ah dadka, E 222 daro iska leh kooxda of kiimikooyin khatar ah. In Ukraine, Ruushka iyo walax waxa la oggol yahay in loo isticmaalo oo kaliya ilaalin adag of technology.

Isticmaalka bisulfate sodium in warshadaha cuntada

Qalabkan waxaa loo isticmaalaa warshadaha cuntada ee loo yaqaan E 222. Tani cuntada dheeraadka asal dardaro isagoo heer sare ah halis. In la isticmaalo muddo dheer habaysan keenaysaa dhaawac halis ah jidhka. Sababo la xiriira hantida la xakameeyo taranka iyo koritaanka of sheyga iyo bakteeriyada loo isticmaalaa sida antioxidant iyo xafidayaal. In deegaan acidic la sulfite sodium decomposes in ay xeryahooda baaruud-ka kooban iyo baaruud laftiisa.

Gargaarka degdegga ah ee loogu talagalay sumowga

Waxaa lagu talinayaa in ay nastaan oo sii dhar diiran, qallalan oo nadiif ah, iyo sidoo kale hawo cusub. Maqaarka iyo indhaha waa in la raaciyaa biyo qabow. Iyada oo gubasho waa rogi faashad aseptic. Next, wac ambalaas.