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磷酸银

磷酸银
IUPAC名
Silver(I) phosphate
识别
CAS号 7784-09-0  ☒N
PubChem 159913
ChemSpider 140592
SMILES
 
  • [O-]P(=O)([O-])[O-].[Ag+].[Ag+].[Ag+]
InChI
 
  • 1S/3Ag.H3O4P/c;;;1-5(2,3)4/h;;;(H3,1,2,3,4)/q3*+1;/p-3
InChIKey FJOLTQXXWSRAIX-UHFFFAOYSA-K
EINECS 232-049-0
性质[2]
化学式 Ag3O4P
摩尔质量 418.58 g·mol−1
外观 黄色固体
密度 6.370 g/cm3
熔点 849 °C
沸点 158 [1]
溶解性 不溶
溶解性 溶于硝酸
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

磷酸银,或正磷酸银原磷酸银,是对光敏感的,黄色的,不溶于水的化合物,由磷酸根离子组成,化学式为Ag3PO4或Ag3O4P [1]

合成,反应和特性

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磷酸银作为一种黄色沉淀,可由可溶性银化合物(如硝酸银)与可溶性磷酸盐的反应制备。[3]它的溶度积为8.89×10−17 mol4dm−12[4][5]这个反应沉淀非常显著[6],可用于定性或定量检测磷酸盐。

该化合物溶于硝酸或氨。[3]随着磷酸银氨溶液中的氨逐渐消失,它也可以形成大的晶体;该反应可用于磷酸根离子的定量分析。[7]根据不同晶形的磷酸银的准备方法,可以产生出相同的晶格结构。[7]

用途

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磷酸银沉淀不仅在分析化学中有重要地位,它也被用在银染生物材料上(之后将银还原)—作为磷酸盐的指示。[8]

在早期摄影中,磷酸银也被发现可以作为一种光敏剂使用。[9]

在2010年,有报告称,作为可见光分解水中的光催化剂,磷酸银具有高量子产率(90%),也可用于以相同方法生产活性氧。[10][11]

磷酸银也是一种潜在的材料,可将银离子的抗菌性能加入其他材料。[12]

其他银的磷酸盐

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焦磷酸银(Ag4P2O7)(CAS号:13465-97-9)[13]可由银(I)和焦磷酸根离子生成沉淀制得。就像磷酸银一样,它对光敏感。磷酸银暴露在光线下会变成红色。[14]密度为5.306g/cm3,熔点为585 °C.[15]水合物也存在,分解温度为110 °C.[15]

偏磷酸银(AgPO3)(CAS号:13465-96-8)[16]是一种白色固体,密度为6.370g/cm3,熔点为482 °C。水合物也存在,分解温度为240 °C。[15]

参考

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  1. ^ 1.0 1.1 1.2 原磷酸银. 化工百科. [2015-05-28]. [永久失效連結]
  2. ^ Weast, Robert C. (编). CRC Handbook of Chemistry and Physics 62nd. Boca Raton, FL: CRC Press. 1981: B-145. ISBN 0-8493-0462-8. .
  3. ^ 3.0 3.1 Phosphates 互联网档案馆存檔,存档日期2010-08-28. www.1911encyclopedia.org
  4. ^ Ksp solubility constant for common salts页面存档备份,存于互联网档案馆www.solubilityofthing.com
  5. ^ SOLUBILITY PRODUCT CONSTANTS 互联网档案馆存檔,存档日期2012-06-15. www.ktf-split.hr
  6. ^ Inorganic chemistry , Egon Wiberg, Nils Wiberg, Arnold Frederick Holleman , Academic Press , 2001] p.721 Google Books excerpt页面存档备份,存于互联网档案馆
  7. ^ 7.0 7.1 F.H. Firsching. Precipitation of Silver Phosphate from Homogenous Solution. Anal. Chem. 1961, 33 (7): 873. doi:10.1021/ac60175a018. 
  8. ^ Taichman, Russell S.; Hauschka, Peter V. Effects of interleukin-1 and tumor necrosis factor- on osteoblastic expression of osteocalcin and mineralized extracellular matrix in vitro (PDF). Inflammation (Springer Nature). 1992, 16 (6): 587–601 [2013-01-25]. ISSN 0360-3997. doi:10.1007/bf00919342. (原始内容存档 (PDF)于2012-03-02). 
  9. ^ Cassell's cyclopaedia of photography , Bernard Edward Jones , Ayer Publishing , 1973 , p.401 'Phosphate plates and papers' , googlebooks link页面存档备份,存于互联网档案馆
  10. ^ Yi, Zhiguo; Ye, Jinhua; Kikugawa, Naoki; Kako, Tetsuya; Ouyang, Shuxin; Stuart-Williams, Hilary; Yang, Hui; Cao, Junyu; Luo, Wenjun; Li, Zhaosheng; Liu, Yun; Withers, Ray L. An orthophosphate semiconductor with photooxidation properties under visible-light irradiation. Nature Materials (Springer Nature). 2010-06-06, 9 (7): 559–564. ISSN 1476-1122. doi:10.1038/nmat2780. 
  11. ^ Discovery of a Novel High Activity Photocatalyst Material: A Great Step Toward the Realization of Artificial Photosynthesis页面存档备份,存于互联网档案馆) Discovery of a Revolutionary Oxidation Property in Silver Phosphate with Quantum Yield of Approximately 90% in Visible Light , 2010/06/07 , press release , National Institute for Materials Science (NIMS) Japan , www.nims.go.jp
  12. ^ Nanocoated film as a bacteria killer页面存档备份,存于互联网档案馆) 23/1/2009 , www.nanowerk.com
  13. ^ Silver pyrophosphate页面存档备份,存于互联网档案馆www.chemicalbook.com
  14. ^ Silver Compounds页面存档备份,存于互联网档案馆) p.5 , section 2.22 , from Kirk-Othmer Encyclopedia of Chemical Technology , Authors: SAMUEL F. ETRIS (The Silver Institute), C. ROBERT CAPPEL (Eastman Kodak Company) , via www.scribd.com
  15. ^ 15.0 15.1 15.2 Bulletin of the National Research Council , National Research Council (U.S.A) , 1950 , pp.56-57 google books link页面存档备份,存于互联网档案馆
  16. ^ Silver metaphosphate页面存档备份,存于互联网档案馆www.chemicalbook.com
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磷酸银
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