siliva oxide ufa

Dzina la malonda: silver oxide

CAS: 20667-12-3

Fomula ya maselo: Ag2O

Kulemera kwa molekyulu: 231.73

Dzina lachi China: Silver oxide

Dzina lachingerezi: Silver oxide; Argentous okusayidi; siliva okusayidi; disilver okusayidi; siliva okusayidi

Muyezo Wabwino: Utumiki wa HGB 3943-76

Katundu wakuthupi

Phe chemical formula ya silver oxide ndi Ag2O, yokhala ndi molekyulu yolemera 231.74. Cholimba chakuda kapena chotuwa, chokhala ndi kachulukidwe ka 7.143g/cm, chimawola mwachangu ndikupanga siliva ndi okosijeni pa 300 ℃. Kusungunuka pang'ono m'madzi, kusungunuka kwambiri mu nitric acid, ammonia, sodium thiosulfate, ndi potaziyamu cyanide solutions. Pamene yankho la ammonia likugwiritsidwa ntchito, liyenera kuthandizidwa panthawi yake. Kuwonekera kwanthawi yayitali kumatha kuyambitsa makristalo akuda ophulika kwambiri - silver nitride kapena silver sulfite. Amagwiritsidwa ntchito ngati oxidant ndi galasi colorant. Konzani pochita njira ya silver nitrate ndi sodium hydroxide solution.

Brown kiyubiki crystalline kapena bulauni wakuda ufa. Kutalika kwa Bond (Ag O) 205pm. Kuwola pa madigiri 250, kutulutsa mpweya. Kachulukidwe 7.220g/cm3 (madigiri 25). Kuwalako kumawola pang’onopang’ono. Amachita ndi sulfuric acid kuti apange silver sulfate. Zosungunuka pang'ono m'madzi. Kusungunuka m'madzi ammonia, sodium hydroxide solution, dilute nitric acid, ndi sodium thiosulfate solution. Zosasungunuka mu ethanol. Konzani pochita njira ya silver nitrate ndi sodium hydroxide solution. Wet Ag2O imagwiritsidwa ntchito ngati chothandizira posintha ma halogen ndi magulu a hydroxyl mu kaphatikizidwe ka organic. Amagwiritsidwanso ntchito ngati zinthu zotetezera komanso zamagetsi.

 

Chemical katundu

Onjezani yankho la caustic ku njira ya silver nitrate kuti mupeze. Choyamba, njira ya silver hydroxide ndi nitrate imapezeka, ndipo hydroxide ya siliva imawonongeka kukhala oxide siliva ndi madzi firiji. Silver oxide imayamba kuwola ikatenthedwa mpaka 250 ℃, kutulutsa mpweya, ndikuwola mwachangu kuposa 300 ℃. Amasungunuka pang'ono m'madzi, koma amasungunuka kwambiri muzitsulo monga nitric acid, ammonia, potaziyamu cyanide, ndi sodium thiosulfate. Pambuyo pokumana ndi yankho la ammonia kwa nthawi yayitali, makhiristo akuda ophulika amphamvu nthawi zina amatha kugwa - mwina silver nitride kapena silver nitride. Mu kaphatikizidwe ka organic, magulu a hydroxyl nthawi zambiri amagwiritsidwa ntchito m'malo mwa ma halogen kapena ngati okosijeni. Itha kugwiritsidwanso ntchito ngati colorant mumakampani agalasi.

 

Njira yokonzekera

Silver oxide imatha kupezeka pochita zinthu zamchere hydroxide ndi silver nitrate. [1] Zomwe zimayamba zimapanga hydroxide yosakhazikika kwambiri, yomwe imawola kuti ipeze madzi ndi siliva oxide. Pambuyo kutsuka mpweya, uyenera kuuma pansi pa 85 ° C, koma n'zovuta kuchotsa madzi pang'ono kuchokera ku oxide siliva pamapeto pake chifukwa kutentha kumawonjezeka, siliva oxide idzawola. 2 Ag+ + 2 OH− → 2 AgOH → Ag2O + H2O.

 

Basic ntchito

Amagwiritsidwa ntchito kwambiri ngati chothandizira kupanga mankhwala. Amagwiritsidwanso ntchito ngati chosungira, zinthu zamagetsi zamagetsi, utoto wagalasi, ndi kugaya. Amagwiritsidwa ntchito pazifukwa zachipatala komanso ngati chopukutira magalasi, utoto, ndi oyeretsa madzi; Amagwiritsidwa ntchito ngati kupukuta ndi kupaka utoto pagalasi.

 

Kuchuluka kwa ntchito

Silver oxide ndiye ma elekitirodi opangira mabatire a silver oxide. Ndiwofooka wa okosijeni ndi ofooka m'munsi mu kaphatikizidwe organic, amene angathe kuchita ndi 1,3-disubstituted imidazole mchere ndi benzimidazole mchere kupanga azenes. Itha kusintha ma ligands osakhazikika monga cyclooctadiene kapena acetonitrile monga ma carbene transfer reagents kuti apange kusintha kwazitsulo za carbene complexes. Komanso, siliva okusayidi akhoza kusintha bromides organic ndi mankhwala enaake mowa mowa pa otsika kutentha ndi pamaso pa nthunzi madzi. Amagwiritsidwa ntchito molumikizana ndi iodomethane ngati methylation reagent pakuwunika kwa shuga methylation ndi zochita za Hoffman kuchotsa, komanso makutidwe ndi okosijeni a aldehydes kukhala carboxylic acid.

 

Zambiri zachitetezo

Mulingo wazonyamula: II

Gulu la zoopsa: 5.1

Nambala yonyamula katundu wowopsa: UN 1479 5.1/PG 2

WGK Germany: 2

Khodi ya gulu la ngozi: R34; R8

Malangizo achitetezo: S17-S26-S36-S45-S36/37/39

Nambala ya RTECS: VW4900000

Chizindikiro cha zinthu zoopsa: O: Wothandizira oxidizing; C: Zowononga;