For faster navigation, this Iframe is preloading the Wikiwand page for 砷酸银.

砷酸银

砷酸银
IUPAC名
trisilver;trioxido(oxo)-λ5-arsane
别名 砷酸三银
识别
CAS号 13510-44-6  checkY
PubChem 166835
SMILES
 
  • [O-][As](=O)([O-])[O-].[Ag+].[Ag+].[Ag+]
InChI
 
  • 1S/3Ag.AsH3O4/c;;;2-1(3,4)5/h;;;(H3,2,3,4,5)/q3*+1;/p-3
InChIKey IMGNYAPMSDUASV-UHFFFAOYSA-K
EINECS 236-841-7
性质
化学式 Ag3AsO4
摩尔质量 462.52 g/mol g·mol⁻¹
外观 棕色固体
密度 6.657 g/cm3
熔点 830 °C(1103 K)
溶解性 0.64 mg/L
溶解性 可溶于酸、氨水
结构
晶体结构 cubic
热力学
ΔfHm298K -634 kJ/mol
危险性
欧盟分类 未列出
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

砷酸银是一种无机化合物,化学式为Ag3AsO4[1]它可用于鉴别磷酸盐砷酸盐溶液的定性分析。(Ag3PO4为黄色沉淀)[2]

制备及性质

[编辑]

砷酸银可用下述反应制备:

3 AgNO3 + Na2HAsO4 → Ag3AsO4↓ + 2 NaNO3 + HNO3

砷酸银难溶于水(Ksp = 1.0×10−22)。可溶于酸或氨水。

参考文献

[编辑]
  1. ^ American elements. [2018-03-10]. (原始内容存档于2015-04-05). 
  2. ^ Godfrey, S.M.; et al. Chapter 3. Norman, N.C. (编). Chemistry of Arsenic, Antimony and Bismuth. Blackie Academic and Professional. 1998. ISBN 0 7514 0389 X. 
{{bottomLinkPreText}} {{bottomLinkText}}
砷酸银
Listen to this article

This browser is not supported by Wikiwand :(
Wikiwand requires a browser with modern capabilities in order to provide you with the best reading experience.
Please download and use one of the following browsers:

This article was just edited, click to reload
This article has been deleted on Wikipedia (Why?)

Back to homepage

Please click Add in the dialog above
Please click Allow in the top-left corner,
then click Install Now in the dialog
Please click Open in the download dialog,
then click Install
Please click the "Downloads" icon in the Safari toolbar, open the first download in the list,
then click Install
{{::$root.activation.text}}

Install Wikiwand

Install on Chrome Install on Firefox
Don't forget to rate us

Tell your friends about Wikiwand!

Gmail Facebook Twitter Link

Enjoying Wikiwand?

Tell your friends and spread the love:
Share on Gmail Share on Facebook Share on Twitter Share on Buffer

Our magic isn't perfect

You can help our automatic cover photo selection by reporting an unsuitable photo.

This photo is visually disturbing This photo is not a good choice

Thank you for helping!


Your input will affect cover photo selection, along with input from other users.

X

Get ready for Wikiwand 2.0 🎉! the new version arrives on September 1st! Don't want to wait?