Sodium sulphide

Sulfide kuyinto sodium (i-sodium sulphide lobuchwepheshe) kuyinto ekhuthaza okuyinto kabanzi embonini. Ngakho, yalolu ketshezi isetshenziswa yokusansimbi, amakhemikhali, umkhakha ukukhanya kanye nezinye izimboni. Sodium sulphide, ngokukhethekile, asetshenziswe ekukhiqizeni kwengaphakathi, udayi, e ukucutshungulwa lesikhumba. Into isetshenziswa ukuncibilika ezinye izinsimbi non-ayoni. Sodium sulfide lubaluleke emkhakheni utho lomklamo. Isetshenziselwa njengoba reagent izinqubo ezihlukahlukene.

Sodium sulphide. Formula (Na2S)

I evamile isimo ngokomzimba kwendaba kubhekwa mass homogeneous, lapho ephezulu ukuzwela noma zinhlayiya hygroscopic. Ingqikithi akhiqizwa ngendlela dwala 3 yamanani ifomu particulate (ngesimo ishq noma elimbudumbudu). Sebenzisa avunyelwe umkhiqizo kokuba ukukhanya onsundu, ukuphaphatheka umbala ophuzi noma lemicu empunga elinamathela othini. Okuningi okukhulu noma omunye umbala kubonisa okukhulu namachibi ejenti. sodium okunjalo sulfide ne ilahlekelwa impahla ewusizo engafanele ukusetshenziswa esiwusizo. I lobuchwepheshe injongo umkhiqizo iqukethe kusukela ayisithupha ezintathu ayisithupha nesikhombisa amaphesenti okokusebenza base ngaphansi kombandela wokuthi lo ingxenyenamba mass okuseleyo engancibiliki ezingadluli amaphesenti nengxenye.

Ngokuhambisana Ukwahlukaniswa ezingeni izingozi Sodium womuntu sulfurous enikezwa nekilasi lesibili. Ingqikithi kuyinto inflammable futhi kuqhume. Kule ndaba, Kungcono ukugcina impahla kumagumbi elivaliwe anemisila yonke izakhiwo ezidingekayo ukuqinisekisa ukuphepha umlilo. It is hhayi Kunconywa ukususa iphakheji umkhiqizo kuze isicelo ngqo we ketshezi. Nakuba nokugcina ubuqotho iziqukathi sodium sulfide ingagcinwa iminyaka emibili. Ithemu ukusetshenziswa ngempumelelo kulokhu kuphela ngonyaka.

Ezokuthutha komkhiqizo kumele kwenziwe nganoma iyiphi indlela yokuhamba izinqola avaliwe noma iziqukathi. ukunakwa okuningi kufanele zikhokhelwe yokulayisha athula lwezinto, ikakhulukazi uma kucatshangwa ukuxhumana ngqo umkhiqizo, zahlanganiswa ngo iziqukathi nezimo. Phakathi zokuthutha ukugwema kusitoreji sesikhashana ezindaweni ezivulekile noma emadepho, kahle ifakwe ukwenza lokhu.

Technical sodium sulfide ukukhiqizwa Chinese igcwele ezikhwameni esikhethekile amakhilogremu amabili nanhlanu. Okufakiwe asivikele namachibi singakafiki isikhathi ukuchayeka ukukhanya. Ngaphezu kwalokho, njengoba emaphaketheni izigubhu steel zisetshenziselwa kuphela imikhiqizo zamakhemikhali, izitsha (CK-1-5 (7)), noma iziqukathi njengobumba oluthambile ukusetshenziswa olulodwa. Ingqikithi kungenziwa zahlanganiswa ngo izikhwama iphepha (amane noma amahlanu-ungqimba) nge kwangaphakathi liner - polyethylene esikhwameni. La masaka kungenzeka okalwe akuyona amakhilogremu ezingaphezu kwamashumi amahlanu.

Phama iziqukathi ekhethekile izidakamizwa is uyiswa le kaloliwe uhlobo evulekile.

Umkhiqizo konga 1,856 igremu ngayinye isentimitha cubic. Ukuqeda lokushisa ifinyelela 1180 degrees. Umkhiqizo hygroscopic kakhulu. Emanzini at degrees amabili ziyoncibilika 13.6% ngo-97,5 degrees - 45% of the material. Umkhiqizo uyakwazi ukwakha crystalline hydrates. Ukuze izixazululo aqueous sodium sulfide lobuchwepheshe isici ane-alikhali ukuphendula.

I hydrolysis Kwenziwa sodium sulphide kanye nosawoti okuyinto akhiwa a asidi kanye sizindza lesicinile. Phenolphtalein e ngamapayipi yokuhlola necebo kuba pink. Lokhu kubonisa ukuthi kwakhiwa medium ane-alikhali is ekuhlolweni tube. Ngakho, i-sodium sulfide, kanye nezinye nosawoti okuyinto akhiwa a asidi kanye sizindza lesicinile, hydrolysed ukwakha ngenxa alikhali.