isiliva oxide powder

Igama lomkhiqizo: silver oxide

I-CAS: 20667-12-3

Ifomula yemolekyuli: Ag2O

Isisindo se-molecule: 231.73

Igama lesiShayina: I-Silver oxide

Igama lesiNgisi: I-Silver oxide; I-argentous oxide; isiliva oxide; i-disiliver oxide; isiliva oxide

Izinga lekhwalithi: indinganiso yongqongqoshe HGB 3943-76

Impahla ebonakalayo

I-Phe chemical formula ye-silver oxide yi-Ag2O, enesisindo samangqamuzana angu-231.74. Okuqinile okunsundu noma okumpunga okumnyama, okunokuminyana okungu-7.143g/cm, ukubola ngokushesha kube isiliva nomoya-mpilo ku-300 ℃. Incibilika kancane emanzini, incibilika kakhulu ku-nitric acid, ammonia, sodium thiosulfate, ne-potassium cyanide solutions. Lapho isixazululo se-ammonia sisetshenziswa, kufanele siphathwe ngesikhathi. Ukuchayeka isikhathi eside kungangenisa amakristalu amnyama aqhuma kakhulu - i-nitride esiliva noma isiliva sulfite. Isetshenziswa njenge-oxidant nengilazi yombala. Ilungiselelwe ngokusabela isixazululo se-nitrate esisiliva nesisombululo se-sodium hydroxide.

Ikristalu eyi-cubic ensundu noma impushana emnyama ensundu. Ubude bebhondi (Ag O) 205pm. Ukubola ngamadigri angu-250, kukhulula umoya-mpilo. Ukuminyana 7.220g/cm3 (25 degrees). Ukukhanya kuyabola kancane kancane. Isabela nge-sulfuric acid ukukhiqiza isiliva sulfate. Incibilika kancane emanzini. Incibilika emanzini e-ammonia, isixazululo se-sodium hydroxide, i-dilute nitric acid, nesisombululo se-sodium thiosulfate. Ayincibiliki ku-ethanol. Ilungiselelwe ngokusabela isixazululo se-nitrate esisiliva nesisombululo se-sodium hydroxide. I-Wet Ag2O isetshenziswa njenge-catalyst lapho ishintsha ama-halogen ngamaqembu e-hydroxyl ku-organic synthesis. Iphinde isetshenziswe njengesivikelo nesisetshenziswa se-elekthronikhi.

 

Impahla yamakhemikhali

Engeza isisombululo se-caustic kwisisombululo se-nitrate yesiliva ukuze usithole. Okokuqala, isixazululo sesiliva se-hydroxide ne-nitrate sitholakala, futhi i-hydroxide yesiliva ibola ibe yisiliva oxide namanzi ekamelweni lokushisa. I-Silver oxide iqala ukubola lapho ishiselwa ku-250 ℃, ikhipha umoya-mpilo, futhi ibola ngokushesha ngaphezu kuka-300 ℃. Incibilika kancane emanzini, kodwa incibilika kakhulu ezixazululweni ezifana ne-nitric acid, ammonia, potassium cyanide, ne-sodium thiosulfate. Ngemva kokuchayeka isikhathi eside kusixazululo sayo se-ammonia, amakristalu amnyama aqhumayo anamandla angase ahle ngezinye izikhathi - mhlawumbe i-silver nitride noma i-silver Daide. Ku-organic synthesis, amaqembu e-hydroxyl avame ukusetshenziselwa ukufaka esikhundleni sama-halogen noma njengama-oxidants. Ingasetshenziswa futhi njengombala embonini yengilazi.

 

Indlela yokulungiselela

I-Silver oxide ingatholwa ngokuphendula i-alkali metal hydroxide ne-nitrate esiliva. [1] Ukusabela kuqala kukhiqiza i-hydroxide esiliva engazinzile, ebola ngokushesha ukuze kutholwe amanzi nesiliva oxide. Ngemuva kokugeza i-precipitate, kufanele yomiswe ngaphansi kuka-85 ° C, kodwa kunzima kakhulu ukususa inani elincane lamanzi ku-oxide yesiliva ekugcineni ngoba njengoba izinga lokushisa likhuphuka, i-oxide yesiliva izobola. 2 Ag+ + 2 OH− → 2 AgOH → Ag2O + H2O.

 

Ukusetshenziswa okuyisisekelo

Isetshenziswa kakhulu njenge-catalyst for chemical synthesis. Ibuye isetshenziswe njengesilondolozi, impahla ye-elekthronikhi, umbala wengilazi, kanye ne-ejenti yokugaya. Isetshenziselwa izinjongo zokwelapha nanjenge-ejenti yokupholisha ingilazi, i-colorant, nesihlanzi samanzi; Isetshenziswa njenge-ejenti yokupholisha kanye ne-coloring yengilazi.

 

Ububanzi bohlelo lokusebenza

I-Silver oxide iyinto ye-electrode yamabhethri e-silver oxide. Futhi iyisizinda se-oxidant esibuthakathaka futhi esibuthakathaka ku-organic synthesis, esingasabela ngosawoti we-imidazole ongashintshiwe ongu-1,3 kanye nosawoti we-benzimidazole ukuze kukhiqizwe i-azene. Ingathatha indawo yama-ligands angazinzile njenge-cyclooctadiene noma i-acetonitrile njengama-reagents okudlulisa i-carbene ukuze kuhlanganiswe izingxube zensimbi ze-carbene zenguquko. Ngaphezu kwalokho, i-silver oxide ingaguqula ama-bromide nama-chloride ephilayo abe ama-alcohol emazingeni okushisa aphansi futhi lapho kukhona umhwamuko wamanzi. Isetshenziswa kanye ne-iodomethane njenge-reagent ye-methylation yokuhlaziywa kwe-sugar methylation kanye nokusabela kokuqedwa kwe-Hoffman, kanye ne-oxidation ye-aldehydes ibe yi-carboxylic acid.

 

Ulwazi lwezokuphepha

Izinga lokupakisha: II

Isigaba sezingozi: 5.1

Ikhodi yokuthutha impahla eyingozi: UN 1479 5.1/PG 2

I-WGK Germany: 2

Ikhodi yesigaba sezingozi: R34; R8

Imiyalo yokuphepha: S17-S26-S36-S45-S36/37/39

Inombolo ye-RTECS: VW4900000

Ilebula lezimpahla eziyingozi: O: I-oxidizing agent; C: Iyagqwala;