Potassium Ferricyanide


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potassium ferricyanide

[pə′tas·ē·əm ‚fer·ə′sī·ə‚nīd]
(inorganic chemistry)
K3Fe(CN)6 Poisonous, water-soluble, bright-red crystals; decomposes when heated; used in calico printing and wool dyeing. Also known as red potassium prussiate; red prussiate of potash.

Potassium Ferricyanide

 

potassium hexacyanoferriate, K3[Fe(CN)6], a complex iron (III) compound; dark red crystals. Density, 1.86 g/cm3.

Potassium ferricyanide is obtained by the oxidation of potassium ferrocyanide. With Fe2+ ions it forms a dark blue precipitate of TurnbulFs blue, Fe3 [Fe(CN)6]2, which is of use inanalytical chemistry. Potassium ferricyanide is also used as areducer in photography.

References in periodicals archive ?
Three membrane pore sizes, 0.10, 0.45, and 5.00 [micro]m, were tested on this platform; 80 [micro]L of 1.2% potassium ferricyanide in deionized water was used as the diffusion solution.
Five milliliters of homogenates were mixed with 100 [micro]L of 0.04 M ammonium sulfamate, 200 [micro]L of 0.5 M lead acetate, and 2.5 mL of 20% (w/v) TCA and then made up to total volume of 10 mL with DW following incubation with 2 mL of 5 mM potassium ferricyanide in an ice under the dark for 60 min.
Potassium carbonate and potassium ferricyanide were used as a secondary oxidant in tert-butyl alcohol-water mixture (1: 1).
The reducing power of yerba mate tea was examined using a mixture of 1mL of phosphate buffer (0.2 M, pH 6.6), 1mL of potassium ferricyanide (1% by weight), and 1 mL of tested sample [24].
Figure 6 shows the cyclic voltammogram behaviour of polyaniline and various NDC electrodes in 0.01 M potassium ferricyanide and hexaammineruthenium (III) in 0.1 M potassium nitrate solution.
The each sample amounting to about 0.5 ml was added to 2.5 ml 0.2 M phosphate buffer (pH 6.6) and 2.5 ml potassium ferricyanide (1%).
To each tube 1ml of methanol, 2.5ml of phosphate buffer and 2.5ml of 1% potassium ferricyanide were added and incubated for 20minutes at 50 [degrees]C.
Analytically pure sodium hydroxide (NaOH) and potassium ferricyanide were supplied by Xiaoshan Chemistry Co.
Before injection onto the column, samples were derivatized by addition of 50 [micro]L of freshly prepared potassium ferricyanide in 15% sodium hydroxide (Fig.
The other chamber, the cathode, was filled with potassium ferricyanide, a chemical that acts as an oxidizing agent to round out the electrical circuit.
1, 1-Diphenyl-2-picrylhydrazyl (DPPH), deoxyribose, thiobarbituric acid (TBA), trichioroacetic acid (TCA), Fe[Cl.sub.2], Fe[Cl.sub.3], potassium ferricyanide ([K.sub.3]Fe[CN.sub.6]), and Folin-Ciocalteu reagent were purchased from Sigma Chemical (St.
The third is the standard version of Murakami's reagent (10g potassium hydroxide, 10g potassium ferricyanide and 100 mL distilled water) used at 122F (50c) for 3 min to color iron phosphide dark yellow or brown and leave the cementite and ferrite colorless.

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