Silver thiosulfate

Silver thiosulfate (STS, chemical formula Ag2S2O3) is an inorganic chemical that can promote early flower growth and promote flower duration in a variety of plants.[2][3]

Silver thiosulfate
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
ECHA InfoCard 100.041.311
EC Number
  • 245-458-4
  • InChI=1S/2Ag.H2O3S2/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
    Key: BLZGNFOLSIAOSQ-UHFFFAOYSA-L
  • [O-]S(=O)(=S)[O-].[Ag+].[Ag+]
Properties
Ag2O3S2
Molar mass 327.85 g·mol−1
Hazards
GHS labelling:[1]
Warning
H315, H319, H335
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

An aqueous solution of silver thiosulfate can be prepared by mixing solutions of sodium thiosulfate and silver nitrate. When used for plant assays, it is prepared using excess thiosulfate, giving the [Ag(S2O3)2]3– complex ion.[4]

References


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