Potassium ferricyanide
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Potassium ferricyanide
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CAS No:
13746-66-2
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Formula:
C6FeN6.3K
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Chemical Name:
Potassium ferricyanide
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Synonyms:
Ferrate(3-),hexakis(cyano-κC)-,potassium (1:3),(OC-6-11)-;Ferrate(3-),hexacyano-,tripotassium;Ferrate(3-),hexakis(cyano-C)-,tripotassium,(OC-6-11)-;Ferrate(3-),hexakis(cyano-κC)-,tripotassium,(OC-6-11)-;Potassium ferricyanide;Tripotassium hexacyanoferrate;Tripotassium ferricyanide;Tripotassium hexacyanoferrate(3-);Potassium ferricyanate;Potassium hexacyanoferrate (K3Fe(CN)6);Potassium hexacyanoferrate(III);Tripotassium ferric hexacyanide;Potassium hexacyanoferrate(3-);Tripotassium iron hexacyanide;Potassium ferricyanide (K3Fe(CN)6);Red prussiate;Iron potassium cyanide (FeK3(CN)6);Potassium cyanoferrate (K3Fe(CN)6);Potassium iron cyanide (K3Fe(CN)6);409-16-5;2002-18-8;1419873-89-4
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CAS No:
Description
Also known as red potassium prussiate and red prussiate of potash, K3Fe(CN)6 is poisonous, bright red,water-soluble crystals that decompose when heated. Used in calico printing and wool dyeing. Red prussiate (IUPAC name Potassium hexacyanoferrate(III), also known as red prussiate of Potash, Prussian red, and potassium ferricyanide) occurs as bright red crystals which are soluble in water. Potassium ferricyanide is manufactured by passing chlorine into a solution of potassium ferrocyanide. It i
RED CRYSTALLINE POWDER.
Potassium hexacyanoferrate(3-) is a potassium salt and a hexacyanoferrate(3-) salt.
Characteristics
143
0.09818
Orange to red fine crystals
1.822 g/cm3
°Cd ec.)
25.7ºC at 760 mmHg
H2O: 464 g/L (20 ºC)
Store at RT.
Safety Information
UN 3077 9 / PGIII
2
32-20/21/22
50A-36
LJ8225000
Xn
Separated from acids. Dry.
Stable. Incompatible with ammonia, strong acids, strong oxidizing agents. Reaction with acids yields toxic gas. May discolour on exposure to light.
P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P322, P330, P332+P313, P337+P313, P362, P363, P403+P233, P405, P501
H302
Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.
|Warning|H302 (43.64%): Harmful if swallowed [Warning Acute toxicity, oral]|P201, P202, P261, P264, P270, P271, P273, P280, P281, P301+P312, P302+P352, P304+P340, P305+P351+P338, P308+P313, P312, P321, P330, P332+P313, P337+P313, P362, P391, P403+P233, P405, and P501|Aggregated GHS information provided by 179 companies from 11 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
In case of fire in the surroundings, use appropriate extinguishing media.
Personal protection: P2 filter respirator for harmful particles. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.
Separated from acids. Dry.
A nuisance-causing concentration of airborne particles can be reached quickly when dispersed, especially if powdered.
The substance is mildly irritating to the eyes, skin and respiratory tract.
Avoid inhalation of dust.
Protective gloves.
Wear safety spectacles.
Drug Information
Fresh air, rest.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
K3Fe(CN)6
The substance can be absorbed into the body by inhalation and by ingestion.
Cough. Sore throat.
Redness. Pain.
Redness. Pain.
Potassium ferricyanide Use and Manufacturing
Chlorine Oxidation Method The yellow blood salt potassium hot solution is oxidized under the action of chlorine gas at about 60-65°C to produce red blood salt potassium. When the pH value of the reaction liquid is controlled to be 6-7, stop the introduction of chlorine gas, then add a saturated solution of potassium permanganate, and test it as brownish red with ammonium ferric sulfate. Adjust the acidity and alkalinity of the material with hydrochloric acid so that the pH value is 7-8. After the reaction, the material is settled, filtered, and evaporated in vacuo to a relative density of 1.2, and then cooled and crystallized, centrifuged, and dried to obtain the finished product of red blood salt and potassium. The 2K4Fe(CN)6+C12→2K3Fe(CN)6+2KCl3K4Fe(CN)6+KMnO4+2H2O→3K3Fe(CN)6+MnO2+4KOH electrolysis method electrolyzes the saturated solution of yellow blood potassium salt below 60℃ , So that the yellow blood salt potassium will undergo an auto-redox reaction to produce red blood salt potassium and by-product potassium hydroxide. When the content of potassium ferricyanide in the electrolyte reaches 320/L, the cooling and crystallization starts, and the concentration is reduced to 280g/L, and the separation and drying are performed to obtain the finished product of potassium erythrocyte salt. Its 2K4Fe(CN)6+2H2O→2K3Fe(CN)6+2KOH+H2↑
Chiefly for blueprints; in photography; also for staining wood, dyeing wool, calico printing, as etching liquid (Mercer's liquor), tempering iron and steel; in electroplating; as a mild oxidizing agent in organic synthesis; in analytical chemistry.
Ferrate(3-), hexakis(cyano-.kappa.C)-, potassium (1:3), (OC-6-11)-: ACTIVE
Computed Properties
Molecular Weight:329.24
Hydrogen Bond Acceptor Count:12
Exact Mass:328.844499
Monoisotopic Mass:328.844499
Topological Polar Surface Area:143
Heavy Atom Count:16
Complexity:127
Covalently-Bonded Unit Count:10
Compound Is Canonicalized:Yes
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