isilivere oxide umgubo

Igama lemveliso: i-oxide yesilivere

I-CAS: 20667-12-3

Ifomula yemolekyuli: Ag2O

Ubunzima bemolekyuli: 231.73

Igama lesiTshayina: iSilver oxide

Igama lesiNgesi: Silver oxide; I-argentous oxide; isilivere i-oxide; i-disiliver oxide

Umgangatho womgangatho: umgangatho womphathiswa we-HGB 3943-76

Izinto eziphathekayo

I-Phe chemical formula ye-oxide yesilivere yi-Ag2O, enobunzima be-molecular 231.74. Ukuqina okumdaka okanye okungwevu okumnyama, kunye noxinzelelo lwe-7.143g/cm, ukubola ngokukhawuleza ukwenza isilivere kunye neoksijini ku-300 ℃. Inyibilika kancinci emanzini, inyibilika kakhulu kwi-nitric acid, ammonia, sodium thiosulfate, kunye nezisombululo zepotassium cyanide. Xa isisombululo se-ammonia sisetyenziswe, kufuneka siphathwe ngexesha elifanelekileyo. Ukuvezwa ixesha elide kunokubangela iikristale ezimnyama eziqhuma kakhulu-isilivere ye-nitride okanye isilivere yesulfite. Isetyenziswa njenge-oxidant kunye nombala weglasi. Ilungiselelwe ngokuphendula isisombululo se-nitrate yesilivere kunye nesisombululo se-sodium hydroxide.

Brown cubic crystalline okanye umgubo omnyama omnyama. Ubude bobhondi (Ag O) 205pm. Ukubola kwii-degrees ezingama-250, ukukhulula i-oxygen. Ubuninzi 7.220g/cm3 (25 degrees). Ukukhanya kuya kubola ngokuthe ngcembe. Ukusabela ngeasidi yesulfuric ukuvelisa isilivere yesulfate. Inyibilika kancinane emanzini. Inyibilika emanzini e-ammonia, isisombululo se-sodium hydroxide, i-dilute nitric acid, kunye nesisombululo se-sodium thiosulfate. Ayinyibiliki kwi-ethanol. Ilungiselelwe ngokuphendula isisombululo se-nitrate yesilivere kunye nesisombululo se-sodium hydroxide. I-Ag2O emanzi isetyenziswa njenge-catalyst xa isusa iihalogens ngamaqela e-hydroxyl kwi-organic synthesis. Ikwasetyenziswa njengesixhobo sokugcina kunye nesixhobo sombane.

 

Ipropati yekhemikhali

Yongeza isisombululo se-caustic kwisisombululo se-nitrate yesilivere ukuze usifumane. Okokuqala, isisombululo se-hydroxide yesilivere kunye ne-nitrate ifunyenwe, kwaye i-hydroxide yesilivere ibola kwi-oxide yesilivere kunye namanzi kwindawo yokushisa. I-Silver oxide iqala ukubola xa ishushu ukuya kuma-250 ℃, ikhupha ioksijini, kwaye ibola ngokukhawuleza ngaphezu kwe-300 ℃. Inyibilika kancinci emanzini, kodwa inyibilika kakhulu kwizisombululo ezifana ne-nitric acid, ammonia, potassium cyanide, kunye ne-sodium thiosulfate. Emva kokuba sesichengeni ixesha elide kwisisombululo sayo se-ammonia, iikristale ezinamandla ezidubulayo ezimnyama ngamanye amaxesha zinokugabadula - mhlawumbi isilivere yenitride okanye isiliva Ngani. Kwi-organic synthesis, amaqela e-hydroxyl ahlala esetyenziselwa ukutshintsha i-halogens okanye njenge-oxidants. Isenokusetyenziswa njengombala kwishishini leglasi.

 

Indlela yokulungiselela

I-Silver oxide inokufumaneka ngokuphendula i-alkali yensimbi ye-hydroxide nge-nitrate yesilivere. [1] Ukusabela kuqala kuvelisa ihydroxide yesilivere engazinzanga, ethi ibole ngokukhawuleza ukufumana amanzi kunye nesilivere ye-oxide. Emva kokuhlamba i-precipitate, kufuneka yomiswe ngaphantsi kwe-85 ° C, kodwa kunzima kakhulu ukususa inani elincinci lamanzi kwi-oxide yesilivere ekugqibeleni kuba njengoko ukushisa kukhula, i-oxide yesilivere iya kubola. 2 Ag+ + 2 OH− → 2 AgOH → Ag2O + H2O.

 

Ukusetyenziswa okusisiseko

Isetyenziswa kakhulu njenge-catalyst ye-chemical synthesis. Ikwasetyenziswa njengesigcini, imathiriyeli yesixhobo sombane, umbala weglasi, kunye nearhente yokusila. Isetyenziselwa iinjongo zonyango kunye ne-agent yeglasi yokupholisha, umbala, kunye nesicoci samanzi; Isetyenziswa njengepolisha kunye nearhente yombala kwiglasi.

 

Umda wosetyenziso

I-Silver oxide yimathiriyeli ye-electrode yeebhetri ze-oxide zesilivere. Ikwayi-oxidant ebuthathaka kunye nesiseko esibuthathaka kwi-organic synthesis, esinokusabela nge-1,3-disubstituted imidazole salts kunye ne-benzimidazole salts ukuvelisa i-azenes. Iyakwazi ukuthatha indawo ye-ligands engazinzanga njenge-cyclooctadiene okanye i-acetonitrile njenge-carbene transfer reagents ukudibanisa i-transition metal carbene complexes. Ukongezelela, i-oxide yesilivere inokuguqula i-bromides ye-organic kunye ne-chlorides ibe yi-alcohols kumaqondo aphantsi kunye nobukho bomphunga wamanzi. Isetyenziswa ngokubambisana ne-iodomethane njenge-methylation reagent yohlalutyo lwe-sugar methylation kunye ne-Hoffman elimination reactions, kunye ne-oxidation ye-aldehydes kwi-carboxylic acids.

 

Ulwazi lokhuseleko

Inqanaba lokupakisha: II

Udidi lweengozi: 5.1

Ikhowudi yothutho lwempahla eyingozi: UN 1479 5.1/PG 2

WGK eJamani:2

Ikhowudi yodidi lweengozi: R34; I-R8

Imiyalelo yokhuseleko: S17-S26-S36-S45-S36/37/39

Inombolo ye-RTECS: VW4900000

Ileyibhile yeempahla ezinobungozi: O: I-arhente ye-oxidizing; C: Iyadleka;