Esiliva Kungani amnyama

Kungani esiliva amnyama? Udaba ekhathaza bonke abanikazi obubizayo wenza kusukela kule metal.

Silver - metal yizicukuthwane nge reactivity ngokwanele ongaphakeme ukuze isenzo oxidant ezivamile - amanzi kanye nomoya. Nokho, ukuba khona kwabo, Nokho, kalula ihlangana enye into - nesibabule divalent. Ukusabela okuholela ukhiqiza Ag2S - sulfide esiliva, okuyinto into emnyama. Ngaphansi kwezimo ezivamile, ku ubucwebe ezenziwe sulfide esiliva Kumiswa kancane kakhulu. Okokuqala, uqala ubuciko embozwe ngokulambisa lizwakale grey ufasimbe, ke kuba cishe black patina.

Ukuze uqonde ukuthi kungani esiliva amnyama, kudingeka uqonde ukuthi ngoba limelela njengoba isici zamakhemikhali, uyakwazi uxhumana imvelo yayo. Isitha esikhulu yizicukuthwane umbala zesiliva sulphur umphakeli H2S (hydrogen sulfide), okuholela namachibi ayo. Kulokhu Okomileyo hydrogen sulfide akakubangeli ukusabela ngaleyo ndlela. Ukuze wenze lokhu, khona umswakama. Ukusabela rate uyakwazi okwandisa izinga lokushisa lapho ukwanda hydrogen sulfide ukugqwala kungenziwa yashesha kakhulu. Ngokwesibonelo, uma izinga lokushisa likhuphuka kusukela degrees 20 kuya 40, izinga leso sikhathi of ukugqwala inyuka izikhathi 25!

Esimweni khulula izinto samanje ezifana i-ozone, ammonia, i-hydrogen chloride, hydrogen sulfide ne -sulfur dioxide , nesibabule khulula. Kuye lokuhlushwa lezi izinto futhi umswakama esiliva ukugqwala kungaba kukhulu noma attenuated. I namachibi okuholela Ag2S metal ngokuhamba kwesikhathi kwandisa enamathela ungqimba kwe-athikili.

Ngakho kungani mnyama esiliva azocaca. Kodwa ngaphandle wathi hydrogen sulphide iqukethe umoya namanzi. Lona sici esilandelayo. Ngezinye wokuqukethwe eliphezulu emanzini zemvelo basebenzisa lokhu kwakwakhe njengendlela yokwelapha - sulfides (hydrogen sulfide) yamanzi.

Umthombo oyinhloko kuyi-hydrogen sulfide kwekhabhoni emoyeni - amabhizinisi zezimboni ezikhiqiza fibre yokufakelwa, uwoyela zokuwuhluza nezitshalo coke, kanye cishe zonke izimoto. Kulokhu, kubonakala ngokuthi umkhiqizo yokubola udaba eziphilayo (udoti).

Kusukela lokho mnyama isiliva kwezimo ezivamile, uma ungenawo ukuyivimbela ukuxhumana amanzi? Ifomu ifilimu sulfide kwi ubucwebe kanye abaxhumana noma nje eduze ekutholeni izinto zokwakha eziphilayo, isibonelo, compounds iraba, epulasitikini.

Ungakhohlwa ukuthi umzimba wethu uqobo uyakwazi esikhiqiza nesibabule. Lingena kusuka ngaphandle komzimba ukudla noma izidakamizwa (streptotsidom, sulphadimezin Sulfazin yokugcoba ehlukahlukene amanye amalungiselelo. Ngokuhamba umzimba, nesibabule kungenzeka sehliselwe H2S futhi aphume ebusweni isikhumba kanye umjuluko, okuyinto nabo emasongweni, namacici nezinye sithandwa imihlobiso yethu.

Ngemva kokuhlola zonke izitha esiliva, manje uqonde hhayi nje kuphela ukuthi kungani esiliva amnyama, kodwa futhi baqaphele ukuthi ukugwema Browning ezinjalo cishe kungenakwenzeka. Ngoba asikwazi ukuphila ngaphandle komoya, amanzi, futhi abakwazi ukuhlanekezela ukusabela umzimba wayo siqu.

Kodwa lokho akuzona zonke izizathu esiliva kungani amnyama. Njengoba lokhu imigexo metal alisetshenziswa ifomu okumsulwa, kodwa kuphela Alloys, ngokuvamile kakhulu ziqukethe zethusi. Emoyeni it is oxidized ukuba Cu2O, ekuzuzeni luhlaza ngokubomvu. Uma umkhiqizo engamboziwe ungqimba oluvikelayo, isibonelo, Radium noma palladium, bayohlala njalo ukungcolisa. Enye kunganikezwa.

Ongakwenza isikhathi ekuphileni esiliva, futhi balondoloze ubuhle yokuqala jewelry kuwo? Udinga ukuqinisekisa ukuthi umkhiqizo akuyona ebilayo, kwakungafanele ezindaweni zokulahla. Ngemva egqoke kubo kufanele ahlanze kusukela uketshezi isikhumba. Futhi ewusizo ngesikhathi wokuhlanza ukuthatha umhlobiso ubucwebe izitolo noma ukuhlanza kubo ngokusebenzisa amanzi soapy ne ukwengeza ammonia.