Oxid de argint

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Oxid de argint
Numele IUPAC
oxid de argint
Caracteristici generale
Formula moleculară sau brută	Ag 2 O
Masa moleculară ( u )	231,735 g / mol
Aspect	pulbere neagră / maro
numar CAS	20667-12-3
Numărul EINECS	243-957-1
PubChem	9794626
DrugBank	DB15668
ZÂMBETE	[O-2].[Ag+].[Ag+]
Proprietăți fizico-chimice
Densitate (g / cm 3 , în cs )	7,14 g / cm3
Solubilitate în apă	0,0025 g / 100 ml
Temperatură de topire	280 ° C (descompunere)
Proprietăți termochimice
Δ f H 0 (kJ mol −1 )	−31,1 kJ · mol −1
C 0 p, m (J K −1 mol −1 )	65,9 J mol −1 K −1
Informații de siguranță
Simboluri de pericol chimic
Pericol
Fraze H	271 - 318 - 410
Sfaturi P	220 - 273 - 280 - 305 + 351 + 338 - 501 [1] [2]
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Silver (I) , oxid este un compus chimic cu formula Ag ₂ O care apare ca o pulbere neagră.

Reacție chimică pentru obținerea oxidului de argint (I):

${\displaystyle \mathrm{<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">2</span></span>}\text{<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;">Ag</span></span>}<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">+</span></span>\frac{\mathrm{<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">1</span></span>}}{\mathrm{<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">2</span></span>}}{\text{<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;">SAU</span></span>}}_{\mathrm{<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">2</span></span>}}^{}<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">⟶</span></span>{\text{<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;">Ag</span></span>}}_{\mathrm{<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">2</span></span>}}^{}\text{<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;">SAU</span></span>}}${\ displaystyle {\ ce {2Ag + 1/2 O_2 -> Ag_2O}}}

Este adesea folosit pentru a produce alte săruri de argint, datorită rezistenței sale scăzute la acizi conform reacției

${\displaystyle {\text{<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;">Ag</span></span>}}_{\mathrm{<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">2</span></span>}}^{}\text{<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;">SAU</span></span>}<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">+</span></span>\mathrm{<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">2</span></span>}\text{<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;">HX</span></span>}<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">⟶</span></span>\mathrm{<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">2</span></span>}\text{<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;">AgX</span></span>}<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">+</span></span>{\text{<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;">H.</span></span>}}_{\mathrm{<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">2</span></span>}}^{}\text{<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;">SAU</span></span>}}${\ displaystyle {\ ce {Ag2O + 2 HX -> 2 AgX + H2O}}}

unde X reprezintă elementul care dă numele acidului. În cazul HCl, de exemplu, reacția ar fi

${\displaystyle {\text{<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;">Ag</span></span>}}_{\mathrm{<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">2</span></span>}}^{}\text{<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;">SAU</span></span>}<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">+</span></span>\mathrm{<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">2</span></span>}\text{<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;">acid clorhidric</span></span>}<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">⟶</span></span>\mathrm{<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">2</span></span>}\text{<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;">AgCl</span></span>}<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">+</span></span>{\text{<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;">H.</span></span>}}_{\mathrm{<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">2</span></span>}}^{}\text{<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;">SAU</span></span>}}${\ displaystyle {\ ce {Ag2O + 2 HCl -> 2 AgCl + H2O}}}

care dă clorură de argint ca produs final.

Notă

Alte proiecte

• Wikimedia Commons conține imagini sau alte fișiere pe oxid de argint

linkuri externe

• ( EN ) Oxid de argint , în Encyclopedia Britannica , Encyclopædia Britannica, Inc.

V · D · M Compuși de argint
Argintiu (0, I)	Ag 2 F
Argint (I)	Piste AGN 3 · Ag 3 N · Ag 2 Dacă · Ag 2 Te · Ag 2 O · Ag 2 S · AgF · AgBr · AgCl · AgI Ternare AgBrO 3 · AgBF 4 · Ag 2 CrO 4 · Ag 2 MoO 4 · AgClO · AgClO 2 · AgClO 3 · AgClO 4 · Ag 2 SO 3 · confortabil 3 · AgMnO 4 · Ag 2 S 2 O 3 · Ag 2 SO 4 · AgNO 2 · AgNO 3 · Ag 2 SeO 3 · Ag 3 AsO 4 · Ag 3 PO 4 · RbAg 4 5 · Ag 2 N 2 O 2 · agreus & nomios 4 · AGPF 6 Alții Ag (NH 3) 2 NO 3 · AgHSO 4 · Compusi organici AgC 2 H 3 O 2 · AgC 22 H 43 O 2 · AGC 4 H 3 N 2 NSO 2 C 6 H 4 NH 2 · Ag 2 C 2 O 4 · Ag 2 C 2 · Ag 2 CO 3 · AgCF 3 SO 3 · KAG (CN) 2 · AgSCN · AgCNO · AGCN
Argint (II)	AgF 2
Argint (III)	Ag 2 O 3 · AgF 3 · Ag 2 S 3
Argint (I, III)	Ag 4 O 4

V · D · M Oxizi

D 2 O H 2 O El Li 2 O BeO B 2 O 3 CO CO 2 C 2 O 3 NU · NU 2 N 2 O · N 2 O 3 N 2 O 4 · N 2 O 5 SAU F 2 O Nici Na 2 O MgO La 2 O 3 Da o SiO2 PO · P 2 O 3 P 2 O 4 · P 4 O 10 SO 2 SO 3 ClO2 · Cl 2 O Cl 2 O 3 · Cl 2 O 4 Cl 2 O 6 · Cl 2 O 7 Ar K 2 O CaO Sc 2 O 3 TiO Ti 2 O 3 TiO 2 V 2 O 3 VO 2 V 2 O 5 CrO · Cr 2 O 3 CrO 2 · CrO 3 MnO · Mn 3 O 4 Mn 2 O 3 · Mn 5 O 8 MnO 2 · MnO 3 Mn 2 O 7 FeO Fe 2 O 3 Fe 3 O 4 Gânguri Co 3 O 4 Co 2 O 3 NiO Cu 2 O CuO ZnO Ga 2 O Ga 2 O 3 GeO GeO 2 Ca 2 O 3 Ca 2 O 5 SeO 2 SeO 3 BrO 2 Br 2 O 3 Br 2 O 5 Kr Rb 2 O SrO Y 2 O 3 ZrO 2 NbO NbO 2 MoO 2 MoO 3 Mo 2 O 3 Tc 2 O 7 Ru 2 O 3 · RuO 2 RuO 3 · RuO 4 Rh 2 O 3 RhO 2 PdO În urmă CdO În 2 sau 3 SnO SnO 2 Sb 2 O 3 TeO TeO 2 TeO 3 2 O 4 · I 2 O 5 2 O 6 · 4 O 9 XeO 3 Cs 2 O 3 BaO * HfO 2 Ta 2 O 5 W 2 O 3 · WO 2 WO 3 · W 2 O 5 ReO 2 ReO 3 Regele 2 sau 7 OsO 2 OsO 4 IrO 2 IrO 4 PtO 2 Au 2 O 3 Hg 2 O HgO Tl 2 O Tl 2 O 3 PbO PbO 2 Pb 3 O 4 Bi 2 O 3 BiO 2 Bi 2 O 5 PoO PoO 2 PoO 3 La Rn Pr Ra ** Rf Db Sg Bh Hs Mt. Ds Rg Cn Nh Fl Mc Lv Ts Og ↓ * Cele 2 sau 3 Ce 2 O 3 Ce 3 sau 4 CeO 2 Pr 2 O 3 PrO 2 Pr 6 O 11 Nd 2 O 3 Pm 2 sau 3 Sm 2 O 3 Eu 2 O 3 Gd 2 O 3 Tb 2 O 3 Tb 4 O 7 TbO 2 Dy 2 O 3 Am 2 sau 3 Er 2 O 3 Tm 2 O 3 Yb 2 O 3 Lu 2 O 3 ** Ac 2 O 3 ThO ThO 2 PaO 2 Pa 2 O 5 UO 2 · U 2 O 5 U 3 O 8 · UO 3 UO 4 · Unitatea 6 NpO 2 PuO 2 Am 2 O 3 AmO 2 2 sau 3 cm CmO 2 Bk 2 O 3 Cf 2 O 3 CfO 2 Ex Fm Md Nu Lr

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