For faster navigation, this Iframe is preloading the Wikiwand page for 氧化镝.

氧化镝

氧化镝
识别
CAS号 1308-87-8  checkY
PubChem 159370
ChemSpider 3296880
SMILES
 
  • O=[Dy]O[Dy]=O
InChI
 
  • 1/2Dy.3O/rDy2O3/c3-1-5-2-4
InChIKey NLQFUUYNQFMIJW-XDEDGNAWAZ
性质
化学式 Dy2O3
摩尔质量 372.998 g/mol g·mol⁻¹
外观 白色粉末
密度 7.80 g/cm3
熔点 2408 °C[1]
溶解性 难溶
结构
晶体结构 立方晶系cI80
空间群 Ia-3, No. 206[2]
危险性
MSDS External MSDS
主要危害 无毒
致死量或浓度:
LD50中位剂量
>1000 mg/kg (大鼠经口)[3]
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

氧化镝,化学式Dy2O3

性质

[编辑]

白色结晶粉末,不溶于水,溶于乙醇。露置于空气中时易吸收二氧化碳而转变为碳酸镝

制备

[编辑]

硝酸镝溶液与氢氧化钠溶液反应生成氢氧化镝,经分离后进行灼烧,得到氧化镝。

用途

[编辑]

用于制造新型光源镝灯,具有亮度高、光色好的优点。还用作核反应堆的控制材料、钇铁钇铝石榴石的添加元素。因有阳极发射能力,故也用作阳极涂层。

参考资料

[编辑]
  1. ^ Webelements Dysprosium trioxide. [2009-11-27]. (原始内容存档于2009-10-21). 
  2. ^ Curzon A.E., Chlebek H.G. The observation of face centred cubic Gd, Tb, Dy, Ho, Er and Tm in the form of thin films and their oxidation. J. Phys. F. 1973, 3: 1–5. doi:10.1088/0305-4608/3/1/009. 
  3. ^ MSDS
{{bottomLinkPreText}} {{bottomLinkText}}
氧化镝
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?