Waikawa Sulfurous. āhuatanga matū, production

waikawa pungatara - ko te waikawa dibasic pararopi iu o te kaha reo. mohiotia pūhui pakarukaru te anake i roto i te wairewa i te kukū o kore ōrau neke atu i te ono ia. I roto i te nganatanga ki tutakina waikawa parakore sulfurous, decomposes reira ki te pūngāwhā hāora rua (SO2) me te wai (H2O). Hei tauira, ka whai wāhi ki te waikawa pungatara (H2SO4) i roto i te puka kukū ki te konutai sulfite (Na2SO3) hei utu o sulfurous waikawa tukua waikura whanariki (SO2). Tenei te aha tenei tauhohenga:

Na2SO3 (konutai sulfite) + H2SO4 (waikawa pungatara) = Na2SO4 (konutai ngāwhā) + SO2 (whanariki hāorarua) + H2O (wai)

He otinga o te waikawa sulfurous

I roto i te rokiroki he tika ki te tutakina te hau. Te kore, waikawa sulfurous, āta ngongo hāora (O2), puta ki pūngāwhā.

2H2SO3 (waikawa sulfurous) + O2 (hāora) = 2H2SO4 (waikawa pungatara)

rongoā waikawa sulfurous e tino rawe ki kakara (kakara haamana'oraa toe i muri tahu kēmu), ka taea te faataa i te aroaro o nei i te aroaro o te pūngāwhā hāora rua (SO2), e kore e matū wai here.

āhuatanga matū o te waikawa sulfurous

1. waikawa Sulfurous (Tātai kia te whakamahi H2SO3) rite te kaihoko whakaiti ranei kaihoko oxidizing.

H2SO3 Ko te kaihoko whakaiti pai. Ka taea te whakamahi i te reira noa o kōnakonako riro halides. Hei tauira:

H2SO3 (waikawa sulfurous) + Cl2 (māota hau) + H2O (wai) = H2SO4 (waikawa pungatara) + 2HCl (waikawa pūmāota)

Ko te pāhekoheko ki kaha whakaiti tenei waikawa ka mahi hei āpitihāora. He tauira ko te tauhohenga o te waikawa pungatara ki hauwai sulfide:

H2SO3 (waikawa sulfurous) + 2H2S (sulfide) = 3s (whanariki) + 3H2O (wai)

2. pūhui whakapā matū Whakaaro hanga e rua momo o tai - whākawa (waenganui) me hydrosulfites (waikawa). E whakaiti ēnei tai āpiha, me te (H2SO3) waikawa sulfurous. I roto i to ratou Mariao puka oxidized o te waikawa pungatara. whākawa Calcining sulfides whakarewa kaha me pūkawa hanga e. Tenei tauhohenga piti hāora-aunoa, whaiaro whakaora-. Hei tauira:

4Na2SO3 (konutai sulfite) = Na2S (konutai sulfide) + 3Na2SO4 (konutai pūkawa)

te konutai me te konurehu sulfite (Na2SO3 me K2SO3) e whakamahia i roto i te whākano papanga pueru, konganuku i roto i te bleaching me te whakaahua. Calcium hauwai sulfite (Ca (HSO3) 2), e te vai anake i roto i te otinga, kua whakamahia hoki te tukanga i te rauemi rakau ki te penupenu sulfite motuhake. Mai i reira ka meinga pepa.

Ko te whakamahi o te waikawa sulfurous

whakamahia te waikawa Sulfurous:

- mo te huruhuru bleaching, hiraka, te rakau penupenu, pepa, me te tahi atu matū ōrite kore e te tu bleaching te whakamahi i te hāora kaha (hei tauira, māota);

- rite te rokiroki me te rongoā horoi, hei tauira, mō te ārai i te FERMENTATION o witi i roto i te faaineineraa o te māngaro ranei ki te ārai FERMENTATION i roto i etahi oko, waina;

- mo te tiaki o te kai, pērā i te kēna huawhenua me hua;

- i roto i te tukatuka o maramara rakau o te rakau i roto i te penupenu sulfite, ka i nei riro i te pepa. I roto i tenei take, he otinga o te konupūmā sulfite (Ca (HSO3) 2), e memeha te lignin - he taonga motuhake e herea te muka cellulose.

waikawa Sulfurous: takanga o

kia whiwhi i tēnei waikawa mā te tātau te pūngāwhā hāora rua (SO2) i roto i te te wai (H2O). Me koe te waikawa pungatara i roto i te puka kukū (H2SO4), parahi (Cu) me te ngongo. Ko te hātepe ko:

1. Āta ringihia ngongo i roto i te waikawa pungatara takiwa, me te ka ki te waiho i te wahi o te parahi. Heat. puta te tauhohenga e whai ake nei:

Cu (parahi) + 2H2SO4 (waikawa pungatara) = CuSO4 (ngāwhā whanariki) + SO2 (whanariki hāorarua) + H2O (wai)

2. kia whakahaua te awa hau pungatara ki te oko ki te wai. A, no te memeha reira wahi puta he tauhohe matū ki te wai, i hanga nei e rite ki te hua o te waikawa sulfurous:

SO2 (pūngāwhā hāora rua) + H2O (wai) = H2SO3

Ko te kupu, e haere ana whanariki hāorarua i roto i te wai, he mea ka taea ki te farii i te waikawa sulfurous. Ko reira utu whakaaro e irritates te hau te ararewa o nga Airways kia meinga tona mumura, me mate o te hiahia. Ki te inhalation o tona mate taea o te mahara wā roa-. Whakapā ki te hiahia hau ki te tiaki rawa, me te whakarongo.