请输入您要查询的百科知识:

 

词条 Uranyl formate
释义

  1. See also

  2. References

{{Chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 470620113
| ImageFile =
| ImageSize =
| ImageAlt =
| IUPACName =
| OtherNames =
|Section1={{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 78394
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/2CH2O2.2O.U/c2*2-1-3;;;/h2*1H,(H,2,3);;;
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = SFIHWLKHBCDNCE-UHFFFAOYSA-N
| CASNo_Ref = {{cascite|changed|??}}
| CASNo = 16984-59-1
| PubChem = 86897
| SMILES = O=CO.O=CO.O=[U]=O
}}
|Section2={{Chembox Properties
| Formula = (UO2(CHO2)2·H2O)
| MolarMass = 378.08 g/mol
| Appearance = fine yellow powder
| Density =
| MeltingPtC = 110
| BoilingPt =
| Solubility = }}
|Section3={{Chembox Hazards
| MainHazards =
| FlashPt =
| AutoignitionPt =
}}

Uranyl formate (UO2(CHO2)2·H2O) is a fine yellow free-flowing powder occasionally used in transmission electron microscopy.

It is occasionally used as a 0.5% or 1% aqueous negative stain in transmission electron microscopy (TEM) because it shows a finer grain structure than uranyl acetate. However, uranyl formate does not easily go into solution, and once dissolved, has a rather limited lifetime as a stain. It is quite sensitive to light, especially ultraviolet light, and will precipitate if exposed.

See also

  • electron microscope

References

  • 2SPI.com, compound information, retrieved May 3, 2011.
{{Uranium compounds}}{{Inorganic-compound-stub}}

3 : Uranyl compounds|Nuclear materials|Formates

随便看

 

开放百科全书收录14589846条英语、德语、日语等多语种百科知识,基本涵盖了大多数领域的百科知识,是一部内容自由、开放的电子版国际百科全书。

 

Copyright © 2023 OENC.NET All Rights Reserved
京ICP备2021023879号 更新时间:2024/11/14 1:44:51