Silver citrate

Structural formula
General
Surname	Silver citrate
other names	Silver (I) citrate; Trisilver 2-hydroxy-1,2,3-propane tricarboxylate;
Molecular formula	C 6 H 5 Ag 3 O 7
Brief description	white crystalline substance
External identifiers / databases
EC number	204-786-8
ECHA InfoCard	100.004.352
PubChem	101599
Wikidata	Q2974473
properties
Molar mass	512.71 g mol −1
Physical state	firmly
Melting point	170 ° C (decomposition)
solubility	poorly soluble in water; soluble in nitric acid , ammonia solution and citric acid ;
safety instructions
GHS labeling of hazardous substances hydrate Caution
H and P phrases	H: 315-319-335
	P: 261-305 + 351 + 338
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Silver citrate is a salt of citric acid . It is composed of the Ag ⁺cation and the citrate anion , C ₆ H ₅ O ₇³⁻ .

properties

Silver citrate is a heavy, white crystalline powder. The compound is sensitive to light and must therefore be stored away from light. Silver citrate is insoluble in water, but soluble in nitric acid and ammonia water .

Manufacturing

Silver citrate is obtained as a white precipitate at room temperature when mixing silver nitrate solution with sodium citrate solution .

{\ displaystyle \ mathrm {3 \ AgNO_ {3} + Na_ {3} C_ {6} H_ {5} O_ {7} \ longrightarrow Ag_ {3} C_ {6} H_ {5} O_ {7} \ downarrow + \ 3 \ NaNO_ {3}}}

When silver nitrate solution is boiled with sodium citrate, silver nanoparticles are formed under reduction .

use

In combination with citric acid, silver citrate has an antiperspirant and bactericidal effect and is therefore used in deodorant sprays and odor-inhibiting foot sprays.

Individual evidence

^ ^A ^b ^c Franz von Bruchhausen: Hager's handbook of pharmaceutical practice . 1930, ISBN 3-540-52688-9 , pp. 610 ( limited preview in Google Book Search).

↑ ^a ^b ^c data sheet Silver citrate hydrate from Sigma-Aldrich , accessed on May 25, 2017 ( PDF ).

^ Hager's Handbook of Pharmaceutical Practice

↑ Stojan Djokic: Synthesis and Antimicrobial Activity of Silver Citrate Complexes . In: Bioinorganic Chemistry and Applications . Vol. 2008, October 6, 2008, pp. 1-7 , doi : 10.1155 / 2008/436458 (English).

↑ J. Diendorf: Silver nanoparticles - synthesis, stability and biological effects , dissertation, Duisburg, Essen (2012), accessed on August 14, 2014 ( PDF ).

↑ Patent DE102009027052A1 : Antiperspirant compositions with silver citrate.

[Franz_von_Bruchhausen-1] A ^b ^c Franz von Bruchhausen: Hager's handbook of pharmaceutical practice . 1930, ISBN 3-540-52688-9 , pp. 610 ( limited preview in Google Book Search).

[Sigma-2] ta sheet Silver citrate hydrate from Sigma-Aldrich , accessed on May 25, 2017 ( PDF ).

[3] Hager's Handbook of Pharmaceutical Practice

[4] Stojan Djokic: Synthesis and Antimicrobial Activity of Silver Citrate Complexes . In: Bioinorganic Chemistry and Applications . Vol. 2008, October 6, 2008, pp. 1-7 , doi : 10.1155 / 2008/436458 (English).

[5] J. Diendorf: Silver nanoparticles - synthesis, stability and biological effects , dissertation, Duisburg, Essen (2012), accessed on August 14, 2014 ( PDF ).