Paʻakai hydrosulfite. Helu a me ka Nine Inch ka waiwai. palapala noi

Paʻakai hydrosulfite - mea he'okanikaʻole hui, he mea hiki ke hooheheeia paakai o kaʻakika paʻakai, a sulfurousʻakika preservative (E222) a me ka antioxidant. Ua Ua whitening waiwai. Ka mea, i ka i kēia Nine Inch haʻilula: NaHSO3.

Helu waiwai o ka paʻakai hydrosulfite:

1. He He keʻokeʻo ka pauka me ka nawaliwali grayish tint.
2. Molar nuipa o 104.061 g. / Mol, nuʻa - 1,48 g. / Santimetr³.
3. ka mahele heheʻe i ka wahi i 150 degere centigrade.
4. He hana wailana i loko o ka wai (H2O) a dilute alkalis.

Ke Nine Inch waiwai o ka paʻakai hydroxide:

1. decompose ka wā enaena:

2NaHSO3 (paʻakai hydrosulfite) = Na2SO3 (paʻakai sulfite) + SO2 (sulfur dioxide i Ua ho oku me ke kinoea) + H2O (ka wai)

2. Decomposed nāʻakika:

HCl + NaHSO3 (hydrochloricʻakika) = NaCl (paʻakai koloriside) + SO2 (sulfur dioxide i) + H2O (ka wai)

3. Decomposed alkalis:

NaHSO3 + NaOH (hydroxide) = Na2SO3 (paʻakai sulfite) + H2O (ka wai)

4. Oxidized ka oxygen.

+ O2 = 4NaHSO3 2Na2SO4 (paʻakai sulufahate) + 2SO2 (sulfur dioxide i, evaporates) + H2O (ka wai)

Pehea e kiʻi paʻakai hydrosulfite?

na kēia mau kiʻina hana hiki ia, e loaa ka waiwai:

1. Ma naoh o ka paʻakai hydroxide me ka'okesaside o ka luaipele.
NaOH (paʻakai kumu) + SO2 (ka sulfur'okesaside) = NaHSO3 (paʻakai hydrosulfite)

2. Ma ka naoh (ma ka mehana ea) o ka paʻakai dithionite me ka wai a me ka hydrochloricʻakika.
2Na2S2O4 (paʻakai dithionite) + H2O (ka wai) + HCl (hydrochloricʻakika) = 2NaHSO3 (paʻakai hydrosulfite) + S (luaipele, precipitate me he) + NaCl (paʻakai koloriside)

3. Ma keʻano o ka naoh i loko i hana paʻakai dithionite, ka wai a me ka oxygen.
2Na2S2O4 (paʻakai dithionite ma nāu kekahi ano) + 2H2O (ka wai) + O2 (oxygen) = 4NaHSO3 (paʻakai hydrosulfite)

Ka hoʻohana o ka paʻakai hydrosulfite:

- malamalama, Nine Inch a me nā hana;

- i loko o ka meaʻai hana ua hoʻohana 'ia e like me he antioxidant paha he preservative;

- hoʻohana 'ia i loko o aneane pau waina manao no ka mea hoʻolilo (Nine Inch waiwai o ka paʻakai hydrosulfite ma keia hihia kōkua e pale aku'okesaside, a malama i ka ho'āʻoʻana o ka inu);

- ua hoʻohana 'ia no ka science hua e kaua germs, a pale browning;

- i ka dyeing a whitening kekahi mau nā'aʻaʻa ua hoʻohana 'ia e like me ka mea preservative;

- e wehe i ke kū'ē make i loko o ka dyeing kaʻina hana o ka pulupulu;

- no ka dyeing polyesters no reductive huikalaʻana;

- like me ka preservative i loko o ka loloʻa o fabrics, a like me ka hoemi hope paha no ka VAT make;

- ma Biochemical 'enekinia, ua hoʻohana' ia ma ka mea e malama i anaerobic rula i loko o ka mīkini'ātoma.

Paʻakai hydrosulfite meaʻawahia i kānaka?

mākou i ka waiwai ma ka ninau ma excessive nā hoʻohui like hiki i loa allergic reactions. Me he umikumamaiwa makahiki kanawalu makahiki NaHSO3 (me potasiuma bisulfite, E 228) ua papa ia i loko o ka United States no ka hoʻohana i maka hua a me nā lauʻai ma hope o ka helu ana o na, make. paʻakai hydrosulfite kumu maʻi likeʻole o ka digestive nenoaiu. E like me ka eu kauoha ma luna ona i nā pilikia i kānaka, E 222 mea hoʻonui e pili ana i ka pae ana o hoʻopōʻino Nine Inch. Ma Ukraine, ka Russian Hui, a me ka waiwai a ua mana no ka hoʻohana me ka ikaika ana i kona akua o ka 'enehana wale.

Ka hoʻohana o ka paʻakai bisulfate i loko o ka meaʻai hana

Keia mea ua hoʻohana 'ia i loko o ka meaʻai hana kapa E 222. kēia meaʻai kumukanawai a kemikala me Kinohi me ke kiʻekiʻe nui o ka pilikia. Ma ka lōʻihi kahua hoʻonohonohoʻana hoʻohana ke kumu ino nui no ke kino. Aie i ka waiwai, e inhibit nā'ōlelo a me ka ulu ana o microorganisms a me koʻohune hoʻohana me he antioxidant a me ka preservative. Ma kaʻakika 'ia me ka paʻakai sulfite decomposes i ka luaipele-i loaʻa ka hui a me ka luaipele iho.

First kōkua no kaʻapu kōheoheo

? Aeiiaiaiaaia e hoomaha, a malama mehana, maloo a me ka maemae kapa, e like me hou lewa. Skin a me ka maka e e holoiia me ka me ka wai. Me ka'ā pono hoʻokō i aseptic lole wili. Next, e kāhea aku i ka ambulance.