Uranyl formate

Uranyl formate  Identifiers

CAS Number

* 16984-59-1 N

3D model (JSmol)

* Interactive image

ChemSpider |

* 78394 Y

PubChem CID

* 86897

InChI

* InChI=1S/2CH2O2.2O.U/c2*2-1-3;;;/h2*1H,(H,2,3);;; Y

Key: SFIHWLKHBCDNCE-UHFFFAOYSA-N Y

SMILES

* O=CO.O=CO.O=[U]=O

Properties

Chemical formula

| (UO2(CHO2)2·H2O)
Molar mass | 378.08 g/mol
Appearance  | fine yellow powder
Melting point |  110 °C (230 °F; 383 K)

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

N verify (what is YN ?)
Infobox references

Uranyl formate (UO2(CHO2)2·H2O) is a salt that exists as 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.

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Uranium compounds

U(II)|

* UB2
* US

U(III)|

* UF3
* UCl3
* UI3
* UP
* U(OH)3
* UH3
* UN

| Organouranium(III) compounds|

* U(C5H5)3

|

U(IV)|

* U(BH4)4
* UCl4
* UF4
* UBr4
* UI4
* UO2
* USi2
* US2
* U(SO4)2

| Organouranium(IV) compounds|

* U(C8H8)2
* U(C5H5)4
* U(C5H5)3Cl

|

U(IV,V)|

* U2N3

U(V)|

* UCl5
* UF5
* UBr5
* UI5
* U2O5

U(V,VI)|

* U3O8

U(VI)|

* (NH4)2U2O7
* Na2U2O7
* UCl6
* UF6
* U(PO4)2
* UO3
* UO4
* UO2(CH3COO)2
* UO2(CHO2)2
* UO2CO3
* UO2CO3·2(NH4)2CO3
* UO2Cl2
* UO2F2
* UO2(NO3)2
* UO2(OH)2
* UO2(SO4)2
* ZnUO2(CH3COO)4
* UN2
* H2UO4
* UO6 (hypothetical)

U(XII)|

* UO6 (hypothetical)

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