Chemistry:Silver stearate

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Silver stearate
Silver stearate.svg
Names
Other names
silver octadecanoate
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 222-505-7
UNII
Properties
C18H36AgO2
Molar mass 392.3
Appearance white powder
Boiling point 359.4 °C (678.9 °F; 632.5 K)
insoluble
Hazards
GHS Signal word Warning
H302, H312, H315, H319, H332, H335
Flash point 162.4 °C (324.3 °F; 435.5 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Tracking categories (test):

Silver stearate is a metal-organic compound with the chemical formula C18H36AgO2. The compound is classified as a metallic soap, i.e. a metal derivative of a fatty acid (stearic acid).[1][2][3]

Synthesis

Silver stearate can be obtained by the reaction of sodium stearate and silver nitrate.

Also by the reaction of stearic acid and silver nitrate in presence of DBU.[4]

Physical properties

Silver stearate forms white powder.[5]

Silver stearate crystals are of triclinic crystal system; cell parameters a = 0.5431 nm, b = 4.871 nm, c = 0.4120 nm, α = 90.53°, β = 122.80°, γ = 90.12°, Z = 2.

The compound is insoluble in water, ethanol, diethyl ether.

References

  1. Lin, Bin; Dong, Jingshan; Whitcomb, David R.; McCormick, Alon V.; Davis, H. Ted (1 October 2004). "Crystallization of Silver Stearate from Sodium Stearate Dispersions" (in en). Langmuir 20 (21): 9069–9074. doi:10.1021/la048793g. PMID 15461488. https://pubs.acs.org/doi/10.1021/la048793g. Retrieved 7 February 2023. 
  2. Nyam-Osor, M; Soloviov, D V; Kovalev, Yu S; Zhigunov, A; Rogachev, A V; Ivankov, O I; Erhan, R V; Kuklin, A I (30 March 2012). "Silver behenate and silver stearate powders for calibration of SAS instruments". Journal of Physics: Conference Series 351 (1): 012024. doi:10.1088/1742-6596/351/1/012024. Bibcode2012JPhCS.351a2024N. 
  3. Diamond, Arthur S. (8 October 2018) (in en). Handbook of Imaging Materials. CRC Press. p. 515. ISBN 978-1-4822-7736-4. https://books.google.com/books?id=w2K1DwAAQBAJ&dq=silver+stearate&pg=PA515. Retrieved 7 February 2023. 
  4. Basel, Siddhant; Bhardwaj, Karishma; Pradhan, Sajan; Pariyar, Anand; Tamang, Sudarsan (31 March 2020). "DBU-Catalyzed One-Pot Synthesis of Nearly Any Metal Salt of Fatty Acid (M-FA): A Library of Metal Precursors to Semiconductor Nanocrystal Synthesis". ACS Omega 5 (12): 6666–6675. doi:10.1021/acsomega.9b04448. PMID 32258902. 
  5. "Silver stearate (CAS 3507-99-1) | Glentham Life Sciences" (in en). glentham.com. https://www.glentham.com/en/products/product/GK5303/.