Sirivha sei rima

Nei rima sirivha? Nyaya inonetsa varidzi zvose zvishongo zvinodhura yaigadzirwa nesimbi ichi.

Silver - vanokudzwa simbi ine zvakakwana pasi reactivity kuti zviito inonyanya oxidant - mvura uye mhepo. Zvisinei, kuvapo kwavo, zvisinei, nyore nyore zvaanoita nemumwe fuma - the divalent sarufa. The zvichiguma zvakaitwa unobereka Ag2S - sirivha sulfide, inova dema fuma. Under kwomuzvarirwo ezvinhu, zvishongo akaita zvesirivha sulfide aumbwa zvishoma nezvishoma. Chokutanga, vanotanga Decorating akafukidza haawanzotauri oneka pfumbu maumi, zvino anova anenge dema patina.

Kuti tinzwisise nei sirivha yerima, unofanira kunzwisisa kuti imhaka yokuti rinomiririra somunhu makemikari Kufananidzira, vaikwanisa kuwadzana kwayo zvakavapoteredza. Muvengi mukuru vanokudzwa sirivha ruvara isuferi nokutengesa H2S (rehydrogen sulfide), iyo inotungamira wayo oxidation. Pakazoti yakaoma rehydrogen sulfide haakonzeri akadaro kuita. Kuti aite izvi, kuvapo unyoro. Zvakaitwa zvazvingava anokwanisa kuwedzera tembiricha panguva iyo zvibereko rehydrogen sulfide ngura inogona nokukurumidza yekudyidzana. Somuenzaniso, kana tembiricha inokwira kubva 20 kusvika 40 madhigirii, iyo nguva imwe mwero ngura inowedzera kuti ka25!

In ezvinhu asunungure aripo zvinhu zvakadai ozone, amoniya, rehydrogen chloride, rehydrogen sulfide, sarufa yakasviba , uye vakasununguka nesarufa. Zvichienderana wevasungwa ava zvinhu uye mwando sirivha ngura inogona yakakura kana attenuated. The zvichiguma oxidation Ag2S simbi pamusoro nguva kunowedzera unhani rukoko yacho.

Saka nei svibirika sirivha inojeka. Asi kunze akati rehydrogen sulphide rinewo mhepo uye mvura. Iri ndiro rinotevera chikonzero. At refu kugutsikana dzinongoitika mvura vanoshandisa remubatanidzwa ichi sezvo somushonga - sulfides (rehydrogen sulfide) emvura.

Kwainyanya rehydrogen sulfide choutsi mumhepo - maindasitiri mabhizimisi kuti pave chakagadzirwa faibha, painocheneserwa mafuta uye chemubhotoro zvinomera, uyewo inenge motokari dzose. Muchiitiko chino, zvinoita sokuti somunhu chigadzirwa manyowa pane makemikari nyaya (tsvina).

Kubva chii anodzima sirivha chaiye ezvinhu, kana iwe hazvikutadzisi kubva kuonana nemvura? Kuumba sulfide firimu iri kwezvishongo uye kuonana kana chete pedyo nokuwana makemikari zvokuvakisa Somuenzaniso, rabha yeimwe, mapurasitiki.

Usakanganwa kuti muviri wedu pacharo anokwanisa kugadzira nesurferi. Inopinda kubva kunze kwemuviri nezvokudya kana zvinodhaka (streptotsidom, sulphadimezin Sulfazin, siyana nezvizoro uye dzimwe gadziriro. Nokufamba muviri, nesurferi inogona kuderedzwa kuti H2S uye padebwe pamusoro pamwechete ziya, riri kubatana muzvindori, pendants nezvimwe tichidiwa Kushongedza edu.

Aongorora zvose vavengi sirivha, zvino isu kunzwisisa kwete chete sei rima sirivha, asi vanozivawo kuti kudzivisa Browning kwakadaro kwakaoma zvisingaiti. Nokuti isu hatigoni kurarama pasina mhepo, mvura, uye havana kukwanisa kuchinja zvakaitwa muviri wayo.

Asi izvozvo handizvo zvoga zvikonzero sirivha nei rima. Sezvo simbi iyi zvishongo harishandiswi yakachena chimiro, asi chete alloys kakawanda dzine mhangura. Mudenga rinenge oxidized kuna Cu2O, tive matsvuku Hue. Kana chigadzirwa hakuna nokufukidzwa rwokudzivirira paiva Somuenzaniso, Radium kana palladium, vacharamba nguva dzose blacken. Mumwe hakuna kupiwa.

Ungaitei kurebesa upenyu sirivha, uye kuramba chepakuvamba kunaka zvishongo kubva mairi? Unofanira nechokwadi chokuti chigadzirwa isina overheated, vakanga kwete nyorova nzvimbo. Pashure akapfeka anofanira kucheneswa kubva ganda secretions. Uyewo kubatsira vari ku rokuchenesa kutora kutsvindisa zvishongo zvitoro kana kuti kuchenesa navo achishandisa soapy mvura pamwe kuwedzera amoniya.