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Potassium ferricyanide

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Potassium ferricyanide

EINECS 237-323-3
CAS No. 13746-66-2 Density 1.85 g/cm3
PSA 142.74000 LogP 0.09818
Solubility water: 464 g/L (20 °C) Melting Point °Cd ec.)
Formula K3Fe.(CN)6 Boiling Point 25.7oC at 760 mmHg
Molecular Weight 329.27 Flash Point N/A
Transport Information N/A Appearance orange to red crystals
Safety 50A-36 Risk Codes 32-20/21/22
Molecular Structure Molecular Structure of 13746-66-2 (Red prussiate) Hazard Symbols HarmfulXn

Potassium ferricyanide gr;Ferrate(3-),hexakis(cyano-kC)-,tripotassium,(OC-6-11)-;Potassium hexacyano-ferrate(III);Hexacyanoferrate(3-) tripotassium;Potassium ferricyanide ( red prussiate of potash );Potassium Ferricyanide Crystal;Potassium iron(III) cyanide;potassium hexacyanidoferrate(3-);Kaliumhexazyanoferrat(III);


Potassium ferricyanide Specification

The Potassium ferricyanide, with the CAS registry number 13746-66-2, is also known as Ferrate(3-), hexakis(cyano-C)-, tripotassium, (OC-6-11)-. It belongs to the product categories of Inorganics; Catalysis and Inorganic Chemistry; Chemical Synthesis; IronVolumetric Solutions; N - R; Salt Solutions. Its EINECS registry number is 237-323-3. This chemical's molecular formula is C6FeK3N6 and molecular weight is 329.24. Its IUPAC name is called Potassium hexacyanoferrate(III). What's more, this chemical's classification code is Mutation data.

Physical properties of Potassium ferricyanide: (1)H-Bond Donor: 0; (2)H-Bond Acceptor: 12; (3)Rotatable Bond Count: 0; (4)Exact Mass: 328.844507; (5)MonoIsotopic Mass: 328.844507; (6)Topological Polar Surface Area: 143; (7)Heavy Atom Count: 16; (8)Formal Charge: 0; (9)Complexity: 127; (10)Isotope Atom Count: 0; (11)Defined Atom StereoCenter Count: 0; (12)Undefined Atom StereoCenter Count: 0; (13)Defined Bond StereoCenter Count: 0; (14)Undefined Bond StereoCenter Count: 0; (15)Covalently-Bonded Unit Count: 10.

Preparation: Potassium ferricyanide is manufactured by passing chlorine through a solution of potassium ferrocyanide. Potassium ferricyanide separates from the solution:

2 K4[Fe(CN)6] + Cl2 → 2 K3[Fe(CN)6] + 2 KCl

Uses of Potassium ferricyanide: The compound has widespread use in blueprint drawing and in photography (Cyanotype process). Potassium ferricyanide is used as an oxidizing agent to remove silver from negatives and positives, a process called dot etching. In color photography, potassium ferricyanide is used to reduce the size of color dots without reducing their number, as a kind of manual color correction. The compound is also used to harden iron and steel, in electroplating, dyeing wool, as a laboratory reagent, and as a mild oxidizing agent in organic chemistry. It is also used in black and white photography with sodium thiosulfate (hypo) to reduce the density of a negative or gelatin silver print where the mixture is known as Farmer's reducer; this can help offset problems from overexposure of the negative, or brighten the highlights in the print. Potassium ferricyanide is often used in physiology experiments as a means of increasing a solution's redox potential. Sodium dithionite is usually used as a reducing chemical in such experiments. Potassium ferricyanide is used in many amperometric biosensors as an electron transfer agent replacing an enzymes natural electron transfer agent such as oxygen as with the enzyme glucose oxidase. It is used as this ingredient in many commercially available blood glucose meters for use by diabetics.

When you are using this chemical, please be cautious about it.
This chemical may cause damage to health. It is harmful by inhalation, in contact with skin and if swallowed. Contact with acids, it will liberate very toxic gas. Whenever you will contact it, please wear suitable protective clothing.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: [C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[K+].[K+].[K+].[Fe+3]
(2)InChI: InChI=1S/6CN.Fe.3K/c6*1-2;;;;/q6*-1;+3;3*+1

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 oral 2970mg/kg (2970mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 51(4), Pg. 23, 1986.
rat LDLo oral 1600mg/kg (1600mg/kg)   Kodak Company Reports. Vol. 21MAY1971,

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