Potassium dichromate - izakhiwo physicochemical futhi ensimini kwesicelo

Potassium dichromate kuyinto okungcono-non-caking orange amakristalu (ngezinye izikhathi ngokubomvu) okuyinto zitholakala kalula encibilikayo naphakathi aqueous futhi lesi sijame njengebhoksi izinaliti ezicashile noma amapuleti. Lapho uxhumana ketshezi isixazululo aqueous iba ene-asidi.

Potassium dichromate - nobuthi obuyingozi kakhulu, umdlavuza kanye oxidants eqinile. Isixazululo spray ongabhubhisa isikhumba, uqwanga, futhi ephefumula ka evala - yomoya.

At lokushisa mayelana 1300 ° C ngenxa yokusabela exchange sodium dichromate futhi potassium chloride ibhalwe potassium dichromate, ogama ifomula K ₂ Kr ₂ O _7:

2KCl + Na ₂ Kr ₂ O ₇ → K ₂ Kr ₂ O ₇ + 2NaCl.

Le into isetshenziswa embonini. Technical potassium bichromate isetshenziswa ukwenziwa ukufana amabhethri ezomile, zombala wezinto ezingaphili, upende ezinengilazi kanye zamagama organic - ukuthola izinhlobo ezihlukahlukene zamakhemikhali.

isixazululo Red-yellow potassium dichromate ibala litmus ayilutho umbala obomvu. Lapho Reflux okwengeziwe ikhambi chemical kuba isici umbala omnyama-bomvu. Lapho izinga lokushisa safinyelela 398 ^o C potassium dichromate Udambisa bese ephenduka ibe ketshezi umbala konsundu, okuyinto ku okwalandela Ukupholisa osemanzi futhi crystallizes. Ngenhla 500 ^o C ketshezi is ngokuphelele ukubola kunomoya-mpilo ekwakhekeni, chromium oxide ne potassium chromate.

izakhiwo Physicochemical potassium dichromate

Isitoreji futhi kuthuthwe ngendlela ephephile chemical ephezulu ikilasi ingozi

Technical potassium dichromate kungenziwa uthuthwa iyiphi ezokuthutha ezimboziwe, ngaphandle komoya. Chemical, igcwele izigubhu ezikhethekile zenzelwe ukusetshenziswa yesikhathi esisodwa, ungakwazi kudlule i ujantshi evulekile kaloliwe. Technical potassium dichromate kumele agcinwe ku ezomile isitoreji izindawo, kuyilapho umkhiqizo izigubhu ezikhethekile olulodwa uya khona ingagcinwa endaweni evulekile, ifakwe enamathela nzima amanzi emifula.

Isembozo Amakhemikhali ukuthi singabakaNkulunkulu ekilasini lokuqala ingozi

Technical potassium dichromate is zahlanganiswa ngo eziklanyelwe izigubhu steel kanye izikhwama zepulasitiki, ehlanganisa izingqimba ezinhlanu, enesisindo 50 kg. Kuvunyelwe emabhokisini elithambile, injongo ekhethekile ukusetshenziswa olulodwa.

Fixed isigaba ingozi zamakhemikhali

Technical potassium dichromate ukuqhuma nomlilo ingozi. Izinga kwethonya umzimba womuntu ke ikilasi ingozi yokuqala inikezwa. Lapho ukusebenza ikhemikhali kufanele kuqashelwe ukuphepha, qaphela kakhulu futhi unake zisetshenziswe PPE isikhumba futhi izitho zokuphefumula.