• May Contain: Iron Oxides (CI 77499), Ferric Ammonium Ferrocyanide (CI 77510). (ulta.com)
  • Treatment of ferrocyanide with ferric-containing salts gives the intensely coloured pigment Prussian blue (sometimes called ferric ferrocyanide and ferrous ferricyanide). (wikipedia.org)
  • Ferrocyanide reversibly oxidized by one electron, giving ferricyanide: [Fe(CN)6]4− ⇌ [Fe(CN)6]3− + e− This conversion can be followed spectroscopically at 420 nm, since ferrocyanide has negligible absorption at this wavelength while ferricyanide has an extinction coefficient of 1040 M−1 cm−1. (wikipedia.org)
  • Ferrocyanide and its oxidized product ferricyanide cannot freely pass through the plasma membrane. (wikipedia.org)
  • Ferricyanide is consumed in the process, thus any increase in ferrocyanide can be attributed to secretions of reductants or transplasma membrane electron transport activity. (wikipedia.org)
  • Potassium ferricyanide, K 3 Fe(NC)s, red prussiate of potash, is obtained by oxidizing potassium ferrocyanide with chlorine, bromine, &c., 2K 4 Fe(NC) 6 + C1 2 = 2K 3 Fe(NC) 6 + 2KC1. (yourdictionary.com)
  • Using methylviologen as electron acceptor, ferrocyanide oxidation can be measured as O 2 uptake, as ferricyanide formation, or as H + consumption (2 Fe 2+ + 2H + + O 2 → 2 Fe 3+ + H 2 O 2 ). (illinois.edu)
  • Using methylviologen as electron acceptor, ferrocyanide oxidation can be measured as O2 uptake, as ferricyanide formation, or as H+ consumption (2 Fe2+ + 2H+ + O2 → 2 Fe3+ + H2O2). (illinois.edu)
  • Preparation of ferrocyanide/ferricyanide reaction, a redox pair solution for electrochemical testing. (sigmaaldrich.com)
  • Sodium ferrocyanide is a common anti-caking agent. (wikipedia.org)
  • and by heating a mixture of magnesium ferrocyanide and sodium carbonate, the double cyanide formed being then decomposed by heating it with metallic zinc. (yourdictionary.com)
  • Of the principal workers in this field we may notice Friedrich Hoffmann, Andreas Sigismund Marggraf (who detected iron by its reaction with potassium ferrocyanide , and potassium and sodium by their flame colorations), and especially Carl Scheele and Torbern Olof Bergman. (yourdictionary.com)
  • The crystal structure of a ferrocyanide-bound HbA(2) at 1.88 A resolution is also presented here, which throws light on the location and the mode of binding of ferrocyanide anion with hemoglobin, predominantly using the residues involved in DPG binding. (rcsb.org)
  • Potassium hexacyanoferrate(II) trihydrate, commonly known as potassium ferrocyanide, is a commonly used anticaking agent. (sigmaaldrich.com)
  • Potassium ferrocyanide gives a precipitate even in very dilute solution. (yourdictionary.com)
  • potassium ferrocyanide gives a brown precipitate, and, if the solution be very dilute, a brown colour is produced. (yourdictionary.com)
  • Then steryldimethylbenzylammonium chloride is added to precipitate ferrocyanide, and finally, ferric sulfate is added as a sweep floc and sequestrant for heavy metals. (cdc.gov)
  • For this reason ferrocyanide has been used as a probe of extracellular electron acceptor in the study of redox reactions in cells. (wikipedia.org)
  • The latest refinement is to replace toxic bromine with harmless ferrocyanide - used in food additives. (telegraph.co.uk)
  • Ferric Ferrocyanide is a flat blue pigment also known as Iron Blue and Prussian Blue. (tkbtrading.com)
  • The dominant use of ferrocyanides is as precursors to the Prussian blue pigments. (wikipedia.org)
  • Ruiz-Bermejo, M, Osuna-Esteban, S & Zorzano, M-P 2013, ' Role of Ferrocyanides in the Prebiotic Synthesis of α-Amino Acids ', Origins of Life and Evolution of Biospheres , vol. 43, pp. 191-203. (elsevierpure.com)
  • Potassium ferrocyanide yellow (T) is used, among other things, to detect iron compounds. (hekserij.nl)
  • We conclude that ferrocyanides and related compounds may have played a significant role as intermediate products in the prebiotic formation of amino acids and oxyhydroxides, such as those that are found in iron-containing soils and that the aerosol cycle of the primitive ocean may have enhanced the yield of the amino acid production. (elsevierpure.com)
  • The soluble salts are removed by lixiviation, and the residue is boiled with lime to form the soluble calcium ferrocyanide , which is finally converted into the potassium salt by potassium chloride or carbonate. (yourdictionary.com)
  • The ferrocyanide solution is standardized by dissolving i gramme of pure zinc in 6 cc. of hydrochloric acid, adding ammonium chloride, and titrating as before. (yourdictionary.com)
  • they also form precipitates on the addition of platinic chloride and potassium ferrocyanide . (yourdictionary.com)
  • As with potassium ferrocyanide red, a poisonous gas can be formed in combination with acids. (hekserij.nl)
  • Newswire Online) Shiv Shankar Gupta, activist and Chairman of Godhum Grains and Farms who recently took up the issue of toxic contents in premium salt brands sold in India, has urged the people to undergo regular health checkups in order to gauge the adverse effects of regularly using iodized salt of premium brands which contain poisonous substances such as potassium ferrocyanide. (newswireonline.com)
  • He mentioned as an important exception the case of ferric ferrocyanide , which, when dissolved in oxalic acid, transmits the rays in great abundance, though the same rays be absorbed both by ferrocyanides and by ferric salts. (yourdictionary.com)
  • Nickel ferrocyanide (Ni2Fe(CN)6) is also used as catalyst in electro-oxidation (anodic oxidation) of urea. (wikipedia.org)
  • Ferrocyanide and I - are also chemically distinct from other Photosystem II donors in that their oxidation does not involve proton release. (illinois.edu)
  • On the small scale it may be prepared by adding an acid solution of a ferrous salt to a solution of potassium ferrocyanide . (yourdictionary.com)
  • It is now prepared from the calcium ferrocyanide formed in gas purifiers (see above) by decomposition with ferrous' sulphate. (yourdictionary.com)
  • Experiments with membranes of copper ferrocyanide have verified this result for solutions of cane-sugar of moderate dilutions. (yourdictionary.com)
  • P. Pfeffer (Osmotische Untersuchungen, Leipzig, 1877) was the first to obtain satisfactory measurements of osmotic pressures of cane-sugar solutions up to nearly I atmosphere by means of semi-permeable membranes of copper ferrocyanide . (yourdictionary.com)
  • Izawa, S & Ort, DR 1974, ' Photooxidation of ferrocyanide and iodide ions and associated phosphorylation in NH 2 OH-treated chloroplasts ', BBA - Bioenergetics , vol. 357, no. 1, pp. 127-143. (illinois.edu)
  • It was found, for instance, that a film of insoluble copper ferrocyanide , deposited in the walls of a porous vessel by the inward diffusion and meeting of solutions of copper sulphate and potassium ferrocyanide , would allow water to pass, but retained sugar dissolved in that liquid. (yourdictionary.com)
  • and by heating potassium ferrocyanide with a large excess of concentrated sulphuric acid, K 4 Fe(CN) 6 -i-6H2S04+6H20=2K2S04+FeS04+3(NH4)2S04+6C0. (yourdictionary.com)
  • It is prepared by oxidizing potassium ferrocyanide with a diluted nitric acid. (yourdictionary.com)
  • The inhibition efficiency of potassium ferrocyanide in phosphoric acid solution against the corrosion of mild steel has been investigated. (sigmaaldrich.com)
  • Potassium ferrocyanide yellow (T) is a substance for experiments for education, development, research and entertainment. (hekserij.nl)
  • It is usually available as the salt potassium ferrocyanide, which has the formula K4Fe(CN)6. (wikipedia.org)
  • Finally, potassium ferrocyanide yellow can be used in cyanotype or blueprint. (hekserij.nl)
  • Potassium ferrocyanide yellow (T) is classified as a hazardous substance (REACH/CLP). (hekserij.nl)
  • TATA Salt recently confessed that they are using potassium ferrocyanide within the permissible limit. (newswireonline.com)
  • People should not use salt that contains potassium ferrocyanide, as it is poison even if the companies claim that the amount is within the permissible limit," he said, adding that the same drug component has been prohibited in the US and the UK, making the TATA Salt's claim mischievous. (newswireonline.com)
  • It was found that people using regular iodized salt with potassium ferrocyanide are more at the risk of high blood pleasure, leading to various kinds of life-threatening diseases, said Gupta, who is also known as father of the Indian gemstone industry. (newswireonline.com)
  • By not regulating properly, the Salt Commissioner has ensured that Indians are fed vacuum salt, which is very harmful, said Gupta adding that no doctors on earth can certify that potassium ferrocyanide is good for health. (newswireonline.com)
  • Other names include potassium hexacyanoferrate(II), potassium ferrocyanide and potassium hexacyanoferrate(II). (hekserij.nl)
  • Not to be confused with potassium ferrocyanide red, the names are very similar with sometimes only one letter difference. (hekserij.nl)
  • the presence of the slightest excess of potassium ferrocyanide is shown by a brownish tint being imparted by the solution to a drop of uranium nitrate. (yourdictionary.com)
  • NH 2 OH-treated, non-water oxidizing chloroplasts are shown to be capable of oxidizing ferrocyanide and I - via Photosystem II at appreciable rates (≥ 200 μequiv/h per mg chlorophyll). (illinois.edu)