Asidi Sulfurous. Mankhwala katundu, kupanga

Sulphurous asidi - ndi wosakhazikika zochita kupanga dibasic asidi mphamvu sing'anga. Osalimba pawiri amadziwika yekha mu amadzimadzi yothetsera pa ndende ya palibe cent zoposa sikisi pa. Pofunafuna wodzipatula asidi koyera sulfurous, izo linawola kuti woipa sulfure (SO2) ndi madzi (H2O). Mwachitsanzo, tikamva asidi sulfuric (H2SO4) mu mawonekedwe moyikirapo mu sulfite ndi sodium (Na2SO3) m'malo sulfurous asidi anamasulidwa okusayidi sulfure (SO2). Apa pali chimene anachita izi:

Na2SO3 (sodium wochuluka sulfite) + H2SO4 (asidi sulfuric) = Na2SO4 (ndi sodium sulphate) + SO2 (sulfure woipa) + H2O (madzi)

A njira asidi sulfurous

Pa yosungirako m'pofunika kuti achotse mpweya. Apo ayi, asidi sulfurous, pang'onopang'ono kungolandira mpweya (O2), lidzasinthidwa sulfuric.

2H2SO3 (asidi sulfurous) + O2 (mpweya) = 2H2SO4 (asidi sulfuric)

sulfurous njira asidi ndi achilendo ndithu fungo (fungo amatikumbutsa otsalira pambuyo kuyaka machesi), pamaso pa sipangakhalenso anafotokoza ndi kukhalapo kwa woipa sulfure (SO2), si mankhwala omangidwa madzi.

Chemical katundu asidi sulfurous

1. asidi Sulfurous (chilinganizo H2SO3) angagwiritsidwe ntchito ngati wothandizira kuchepetsa kapena wothandizila oxidizing.

H2SO3 ndi bwino kuchepetsa wothandizila. Thiabendazole angagwiritsidwe ntchito ufulu wa halogens kulandira halides. Mwachitsanzo:

H2SO3 (asidi sulfurous) + Cl2 (chlorine mpweya) + H2O (madzi) = H2SO4 (asidi sulfuric) + 2HCl (hydrochloric acid)

Koma mogwirizana ndi amphamvu kuchepetsa asidi izi adzachita monga oxidant ndi. Chitsanzo ndi zimene asidi sulfuric ndi sulfide wa hydrogen:

H2SO3 (asidi sulfurous) + 2H2S (sulfide) = 3S (sulfure) + 3H2O (madzi)

2. Akuti kukhudzana mankhwala pawiri ndipamene awiri yonse ya mchere - sulfites (pakati) ndi hydrosulfites (Acidic). Michere imeneyi kuchepetsa wothandizila, komanso (H2SO3) asidi sulfurous. Mu mawonekedwe awo oxidized salt asidi sulfuric. Calcining sulfites sulfides yogwira zitsulo ndi sulfates anapanga. Izi zimachitika galimoto-makutidwe ndi okosijeni, kudzikonda machiritso. Mwachitsanzo:

4Na2SO3 (sodium wochuluka sulfite) = Na2S (ndi sodium sulfide) + 3Na2SO4 (sodium wochuluka sulfate)

soda ndi sulfite potaziyamu (Na2SO3 ndi K2SO3) ntchito ankaudaya nsalu nsalu, zitsulo mu oyeretsa komanso zithunzi. sulfite kashiamu wa hydrogen (Ca (HSO3) 2), amene alipo yekha mu njira, ntchito processing nkhuni nsalu mu sulfite zamkati wapadera. Mtengowo kupanga pepala.

The ntchito asidi sulfurous

asidi Sulfurous ntchito:

- kwa oyeretsa ubweya, silika, zamkati nkhuni, pepala ndi zinthu zina zofanana chiyani sangaime oyeretsa ntchito oxidants amphamvu (mwachitsanzo, chlorine);

- monga usawonongeke ndi antiseptic, mwachitsanzo, pofuna kupewa nayonso mphamvu ya tirigu yokonza wowuma kapena kuteteza nayonso mphamvu mu mbiya vinyo;

- chifukwa kuteteza chakudya, monga masamba kumalongeza ndi zipatso;

- mu processing wa tchipisi mitengo ya nkhuni mu zamkati sulfite, amene mulandire pepala. Pankhaniyi yothetsera kashiamu sulfite (Ca (HSO3) 2), amene amasungunula ndi lignin - chinthu chapadera chimene chimalimbitsa ulusi mapadi.

asidi Sulfurous: Kukonzekera

Asidiyu angathe itengedwe ndi Kutha woipa sulfure (SO2) m'madzi (H2O). Muyenera asidi sulfuric mu mawonekedwe moyikirapo (H2SO4), mkuwa (Cu) ndi chubu. The aligorivimu ndi:

1. Mosamala kutsanulira chubu mu chidulo kuikapo maganizo sulphurous kenako kuika chidutswa cha mkuwa. Kutentha. Anachita izi zikachitika:

Cu (mkuwa) + 2H2SO4 (asidi sulfuric) = CuSO4 (sulphate sulfure) + SO2 (sulfure woipa) + H2O (madzi)

2. sulphurous mpweya mtsinje ayenera kupita mu nsupa ndi madzi. Pamene amasungunula mwina amapezeka ndi mankhwala anachita ndi madzi, amene anapanga chifukwa cha asidi sulfurous:

SO2 (sulfure woipa) + H2O (madzi) = H2SO3

Choncho, kudutsa woipa sulfure mwa madzi, n'zotheka kulandira asidi sulfurous. Ndi zothandiza kuti mpweya umasokoneza zilonda za Airways zingachititse kutukusira wake, ndi kukana kudya. Ndi yaitali inhalation ya imfa yake mwina chikumbumtima. Lumikizanani ndi kufunika mpweya ndi chisamaliro changu ndi chidwi.