Sulfurous acid. guryaha Chemical, wax soo saarka

Sulphurous acid - waa acid imanba deganayn dibasic ee xoogga dhexdhexaad ah. xarunta jilicsan la og yahay oo kaliya in xal aqueous at-fiirsashada ah oo aan ka badan boqolkiiba lix. In isku day in ay ka jaraan saafi sulfurous acid, waxa decomposes in baaruud dioxide (SO2) iyo biyo (H2O). Tusaale ahaan, markii loo feydo acid sulfuric (H2SO4) qaab xoog galay sulfite sodium (Na2SO3) halkii acid sii daayay xabagta baaruud sulfurous (SO2). Halkan waxa reaction this:

Na2SO3 (sodium sulfite) + H2SO4 (sulfuric acid) = Na2SO4 (sodium sulphate) + SO2 (baaruud dioxide) + H2O (oo biyo ah)

Xalka of sulfurous acid

Inta lagu guda jiro kaydinta waa lagama maarmaan si looga saaro hawada. Haddii kale, sulfurous acid, ogsijiin si tartiib ah u dhuuqin (O2), beddelaa sulfuric.

2H2SO3 (sulfurous acid) + O2 (oxygen) = 2H2SO4 (sulfuric acid)

xal acid sulfurous waa urta arrin ku waani (ur garabaka haray ciyaarta ka dib gubanaya), joogitaanka kaas oo lagu macnayn karaa by joogitaanka baaruud dioxide (SO2), ma aha kuwo kiimikaad biyo xidhxidhan.

guryaha kiimikada ee sulfurous acid

1. acid Sulfurous (Formula H2SO3) waxaa loo isticmaali karaa sida wakiilka yaraynta ama wakiilka oksidheeyeyaal ah.

H2SO3 waa wakiilka wanaagsan yareeyo. Waxaa loo adeegsan karaa lacag la'aan halogens heli halides. Tusaale ahaan:

H2SO3 (sulfurous acid) + Cl2 (gaaska chlorine) + H2O (oo biyo ah) = H2SO4 (sulfuric acid) + 2HCl (Aashito)

Laakiin dhexgalka la xoog yaraynta acid this shaqeyn doonaa sida oxidant ah. Tusaale waxaa ah falcelinta of acid sulfuric la tayadda hydrogen:

H2SO3 (sulfurous acid) + 2H2S (tayadda) = 3 (baaruud) + 3H2O (oo biyo ah)

2. xarunta xiriirka kiimiko loo tixgeliyaa foomamka laba nooc oo cusbada - sulfites (dhexe) iyo hydrosulfites (acidic). cusbada ayaa yareynaya wakiilada, iyo sidoo kale (H2SO3) sulfurous acid. In cusbada foomka ay oxidized of sulfuric acid. sulfites Calcining sulfides biraha firfircoon oo sulfates loo sameeyay. reaction auto-qayilo Tani, is-bogsashada. Tusaale ahaan:

4Na2SO3 (sodium sulfite) = Na2S (tayadda sodium) + 3Na2SO4 (sodium sulfate)

sodium iyo potassium sulfite (Na2SO3 iyo K2SO3) waxaa loo isticmaalaa in dyeing difaan dharka, biraha ee bleaching iyo sidoo kale sawiro. sulfite hydrogen Calcium (Ca (HSO3) 2), taas oo jirta kaliya ee xal, waxaa loo isticmaalaa ka baaraandegidda wax qori galay saxarka a sulfite gaar ah. Laga soo bilaabo waxay ka dibna dhigi warqad.

Isticmaalka sulfurous acid

Sulfurous acid waxaa loo isticmaalaa:

- dhogor idaad bleaching, xariir, saxarka alwaax, waraaqaha iyo waxyaabaha kale ee la midka ah ma u adkeysan bleaching isticmaalaya a oxidants xoog (tus, chlorine);

- sida preservative iyo aalkolada ah, tus, ka hortagga halsano ee ahaa hadhuudh in diyaarinta istaarijka ama si looga hortago in halsano foosto oo khamri ah;

- ilaalinta cuntada, sida khudaarta iyo miraha qasaceyn,

- in processing ee chips alwaax oo qoryo ku saxarka sulfite ah, kaas oo markaas hesho warqada. Xaaladdan oo kale, xal of sulfite calcium (Ca (HSO3) 2), kuwaas oo u kala diray lignin ah - walax gaar ah xidhana fiiloyin cellulose ah.

Sulfurous acid: Diyaarinta

acid Tani waxaa laga heli karaa by kala diridda baaruud dioxide (SO2) ee biyaha (H2O). Waxaad u baahan tahay acid ee sulfuric qaab xoog (H2SO4), copper (CU) iyo tuubada. geynta waa:

1. Si taxadar leh ku shub tube in xoog sulphurous acid iyo markaas in meel dhul ah oo copper. Heat. reaction soo socda dhacdaa:

CU (copper) + 2H2SO4 (sulfuric acid) = CuSO4 (baaruud sulphate) + SO2 (baaruud dioxide) + H2O (oo biyo ah)

2. il gaaska sulphurous waa in lagu hagaajiyaa galay weel biyo. Marka ay kala qayb ahaan waxay dhacdaa falgal kiimikaad biyo, kaas oo la sameeyay iyadoo ay sabab u sulfurous acid:

SO2 (baaruud dioxide) + H2O (oo biyo ah) = H2SO3

Sayidka, marayay baaruud dioxide biyaha dhex marisaan, waxaa suurtagal ah si ay u helaan acid ee sulfurous. Waxaa xusid mudan garato in gaaska dhibtaa dahaarka hawo waxay keeni kartaa in ay barar, iyo rabitaanka cuntada oo luma. Iyada oo la neefsado muddo-dheer ah oo ay khasaaro ay suurtagal tahay miyir. La xiriir baahi gaaska si taxaddar sare iyo dareenka.