A ferricyanide

Treverton, J. A. and Davies N. C. XPS Studies of a Ferricyanide Accelerated chromate Paint PretreatmenI Film on an Aluminium Surface , Surf. Interfacial Ana ., 3, 194-200 (1981)... 

These data are from Coulson and Heath (10) The 0 doses were delivered for short times (5 min in Part A, and 1 min in Parts B S C) to prevent breakage of the plastids. In Part C, the intact plastids were treated as in B and then osmotically checked by resuspension in a solution containing no osmoticium, before assaying as in Part A. Ferricyanide reduction was measured spectrophotometrically. 

The pigments Prussian blue and TurnbulFs blue are made by addition of ferrous ion to a ferricyanide solution or ferric ion to a ferrocyanide solution. The pigments which precipitate have the approximate composition KFeFe(CN)g HoO. They have a brilliant blue color. Ferrous ion and ferrocyanide ion produce a white precipitate of KoFeFe(CN)6, whereas ferric ion and ferricyanide ion do not form a precipitate, but only a brown solution,... 

The iron compounds have been known for several centuries and valued as pigments. The name Prussian (Berlin) blue is given to the compound formed from a solution of a ferric salt and a ferrocyanide, while that obtained from a ferrous salt and a ferricyanide has been known as Turnbull s blue. It appears from Mbssbauer studies that both of these compounds are (hydrated) Fe4 [Pe (CN)6]3. with high-spin Fe and low-spin Fe in the ratio 4 3. There is also a soluble Prussian blue with the composition KFe[Fe(CN)6] which is also a ferrocyanide. Most, if not all, of the compounds we are discussing are hydrated we consider the water of hydration later. 

Fig. 6.10. Time dependence of curvature fluctuations of a giant lipid vesicle with stress-sensitive alamethicin channels in its membrane. Inside the vesicle there is a ferricyanide solution undergoing a photochemical reaction under illumination, which produces a pH gradient and a photopotential across the membrane. The graph shows the second Legendre polynomial amplitude of the angular autocorrelation function of the vesicle radius as a function of time. Brief episodes (peaks) of extensive thermal fluctuations in a tension-free membrane are separated by long periods of a tensed, non-fluctuating vesicle membrane. (V. Vitkova, A.G. Petrov, unpublished.)...

Substances on polyamide layers may be detected by spraying with a ferricyanide-ferric sulphate reagent (similar to No. 111). The hmit of detection of BHT is about 1 (xg (on silica gel). 

Schweinzer, E., and Goldenberg, H., 1993, Monodehydroascorbate reductase activity in the surface membrane of leukemic cells. Characterization by a ferricyanide-driven redox cycle, Eur. J. Bio-chem. 218 1057-1062. 

Fig. 6.18 Two different tubular upflow reactor designs using ferricyanide cathodes. (A) Schematic and (B) photograph of an upflow system with the reactor packed with reticuiated vitreous carbon (RVC), with the CEM separating the two chambers He et al. 2005). (B) Schematic of a reactor packed with granuiar activated carbon (GAC) with a tube made of a CEM and packed with GAC, that contains a ferricyanide solution (He et al. 2006). (Reprinted with permission of the American Chemical Society.)...

Fig. 6.20 Three different stack MFCs. (A) Reactor used by Aelterman et al. (2006) with a ferricyanide catholyte. (Reprinted with permission from the American Chemicai Society.) (B) Oxygen cathode MFC us by Shin et al. (2006) (6 = cathode chamber with grooves for air, 7 = anode...

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