Sodium hydrosulfite. Anụ ahụ na chemical Njirimara. ngwa

Sodium hydrosulfite - bụ ihe inorganic compound, a metal nnu nke ihe acidic sodium na sulfurous acid egbochi mmebi (E222) na ihe antioxidant. Ọ whitening Njirimara. Ọ nwere ndị na-esonụ chemical usoro: NaHSO3.

Physical Njirimara nke sodium hydrosulfite:

1. Ọ bụ a na-acha ọcha ntụ ntụ na-enwe a na-adịghị ike grayish tint.
2. ezengwenri uka nke 104.061 g / mol, njupụta - 1,48 g / santimetr³.
3. The agbaze ekwu bụ 150 degrees centigrade.
4. Ọ bụ ngwa ngwa soluble n'ime mmiri (H2O) na itughari alkalis.

The chemical Njirimara nke sodium hydroxide:

1. amalite irekasị mgbe ewe iwe:

2NaHSO3 (sodium hydrosulfite) = Na2SO3 (sodium sulfite) + SO2 (sọlfọ dioxide a tọhapụrụ ka a gas) + H2O (mmiri)

2. akadiahade asịd:

HCl + NaHSO3 (hydrochloric acid) = NaCl (sodium chloride) + SO2 (sọlfọ dioxide) + H2O (mmiri)

3. akadiahade alkalis:

NaHSO3 + NaOH (hydroxide) = Na2SO3 (sodium sulfite) + H2O (mmiri)

4. oxidized oxygen:

+ O2 = 4NaHSO3 2Na2SO4 (sodium sulfate) + 2SO2 (sọlfọ dioxide, anwụ na-amịrị) + H2O (mmiri)

Olee otú iji nweta sodium hydrosulfite?

ndị na-esonụ ụzọ pụrụ ịbụ iji nweta umi:

1. Site mmeghachi omume nke sodium hydroxide na oxide nke sọlfọ:
NaOH (sodium isi) + SO2 (sọlfọ oxide) = NaHSO3 (sodium hydrosulfite)

2. Site na mmeghachi omume (na ụlọ okpomọkụ) nke sodium dithionite na mmiri na hydrochloric acid:
2Na2S2O4 (sodium dithionite) + H2O (mmiri) + HCl (hydrochloric acid) = 2NaHSO3 (sodium hydrosulfite) + S (sọlfọ, ịkpali ka a) + NaCl (sodium chloride)

3. Site a mmeghachi omume nke interacts sodium dithionite, mmiri na oxygen:
2Na2S2O4 (sodium dithionite na diluted ụdị) + 2H2O (mmiri) + O2 (oxygen) = 4NaHSO3 (sodium hydrosulfite)

The ojiji nke sodium hydrosulfite:

- ìhè, chemical na ndị ọzọ ọrụ;

- na nri ụlọ ọrụ na-eji dị ka ihe antioxidant ma ọ bụ a ihe eji egbochi mmebi;

- eji na fọrọ nke nta niile mmanya zubere maka mbupụ (chemical Njirimara nke sodium hydrosulfite na nke a na-enyere iji gbochie ọxịdashọn ma chebe uto nke ihe ọṅụṅụ);

- na-eji maka Canning mkpụrụ osisi na-alụ ọgụ germs ma gbochie browning;

- na dyeing na whitening dị iche iche anụ ahụ na-eji dị ka ihe eji egbochi mmebi;

- wepụ reactive dyes na dyeing usoro nke owu;

- maka dyeing polyesters maka reductive ọcha;

- dị ka ihe eji egbochi mmebi na bleaching nke akwa na dị ka a na mbenata gị n'ụlọnga maka VAT dyes;

- na Biochemical Engineering na-eji na iji nọgide anaerobic ọnọdụ chernobyl.

Sodium hydrosulfite bụ na-egbu egbu ndị mmadụ?

anyị nwere umi na ajụjụ na oké kasịnụ nwere ike ime ka oké nfụkasị Jeremaya. Na iri na iteghete na asatọ afọ NaHSO3 (dị ka potassium bisulfite, E 228) na-aju na United States-eji na raw mkpụrụ osisi na akwụkwọ nri mgbe ọtụtụ mgbe, ọnwụ. sodium hydrosulfite akpata ọrịa dị iche iche nke digestive usoro. Dị ka EU ntụziaka na bekee bụ ize ndụ ụmụ mmadụ, E 222 mmako bụ otu nke ize ndụ kemịkal. Na Ukraine, na Russian Federation na umi-ikike maka ojiji naanị na ike idebe technology.

The ojiji nke sodium bisulfate na nri ụlọ ọrụ

Nke a ihe onwunwe na-eji na-emepụta ihe oriri na-akpọ E 222. nri emeju bụghị enwe a akwa n'ogo nke ize ndụ. Na ogologo Ịhazi ojiji akpata oké mmerụ ahụ. N'ihi na ihe onwunwe nke ibelata amụba na uto nke microorganisms na bacteria eji dị ka ihe antioxidant na a egbochi mmebi. Ke acidic gburugburu ebe obibi na sodium sulfite erekasịchaala ka sọlfọ-nwere ogige na sọlfọ onwe ya.

Mbụ enyemaka maka nsi

Ọ na-atụ aro ka ha zuru ike na na-na na-ekpo ọkụ, ala akọrọ na uwe ndị dị ọcha, nakwa dị ka ikuku. Skin na anya ga-rinsed na mmiri jụrụ oyi. Na Burns ga wetara aseptic bandeeji. Ọzọ, kpọọ ụgbọ ihe mberede.