Trikaliumhexacyanoferrat

1.89 g/cm³

1.85 @25 °C

Ruby red crystals; [Merck Index]

RED CRYSTALLINE POWDER.

This chemical does not meet GHS hazard criteria for 4.9% (14 of 285) of reports.

Warning

H302 (25.3%): Harmful if swallowed [Warning Acute toxicity, oral]；H315 (10.5%): Causes skin irritation [Warning Skin corrosion/irritation]；H319 (62.8%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]；H335 (10.2%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]；H361 (14.7%): Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]；H411 (45.3%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

P203, P261, P264, P264+P265, P270, P271, P273, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P318, P319, P321, P330, P332+P317, P337+P317, P362+P364, P391, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 285 reports by companies from 12 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.；Reported as not meeting GHS hazard criteria per 14 of 285 reports by companies.；There are 10 notifications provided by 271 of 285 reports by companies with hazard statement code(s).；Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

Chemical: Ferrate(3-), hexakis(cyano-C)-, tripotassium, (OC-6-11)-

Status: Active Update: 16-04-2020 https://echa.europa.eu/registration-dossier/-/registered-dossier/27573

Potassium ferricyanide: Does not have an individual approval but may be used under an appropriate group standard

Decomposes when heated, producing hydrogen cyanide; Produces cyanides when reacts with acids; Mild irritant to skin and eyes; [ICSC] Toxic by ingestion, but not as toxic as the simple cyanides; [Sax] The compound has low toxicity unless heated to decomposition; [Hawley]

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.

Rinse mouth. Give one or two glasses of water to drink.

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.

12 [mg/m3]

54 [mg/m3]

320 [mg/m3]

Antidotes to cyanide poisoning include hydroxocobalamin and sodium nitrite, which release the cyanide from the cytochrome system, and rhodanase, which is an enzyme occurring naturally in mammals that combines serum cyanide with thiosulfate, producing comparatively harmless thiocyanate. Oxygen therapy can also be administered. (L97)

Exposure to high levels of cyanide for a short time harms the brain and heart and can even cause coma, seizures, apnea, cardiac arrest and death. Chronic inhalation of cyanide causes breathing difficulties, chest pain, vomiting, blood changes, headaches, and enlargement of the thyroid gland. Skin contact with cyanide salts can irritate and produce sores. (L96, L97)

The substance can be absorbed into the body by inhalation and by ingestion.

Inhalation (L96) ; oral (L96) ; dermal (L96)

Cyanide is an inhibitor of cytochrome c oxidase in the fourth complex of the electron transport chain (found in the membrane of the mitochondria of eukaryotic cells). It complexes with the ferric iron atom in this enzyme. The binding of cyanide to this cytochrome prevents transport of electrons from cytochrome c oxidase to oxygen. As a result, the electron transport chain is disrupted and the cell can no longer aerobically produce ATP for energy. Tissues that mainly depend on aerobic respiration, such as the central nervous system and the heart, are particularly affected. Cyanide is also known produce some of its toxic effects by binding to catalase, glutathione peroxidase, methemoglobin, hydroxocobalamin, phosphatase, tyrosinase, ascorbic acid oxidase, xanthine oxidase, succinic dehydrogenase, and Cu/Zn superoxide dismutase. Cyanide binds to the ferric ion of methemoglobin to form inactive cyanmethemoglobin. (L97)

Cough. Sore throat.

Redness. Pain.

Redness. Pain.

Abdominal pain. Nausea. Vomiting.

Cyanide poisoning is identified by rapid, deep breathing and shortness of breath, general weakness, giddiness, headaches, vertigo, confusion, convulsions/seizures and eventually loss of consciousness. (L96, L97)

Chemical: Ferrate(3-), hexakis(cyano-C)-, tripotassium, (OC-6-11)-

Status: Active Update: 16-04-2020 https://echa.europa.eu/registration-dossier/-/registered-dossier/27573

Potassium ferricyanide: Does not have an individual approval but may be used under an appropriate group standard

Cyanide is rapidly alsorbed through oral, inhalation, and dermal routes and distributed throughout the body. Cyanide is mainly metabolized into thiocyanate by either rhodanese or 3-mercaptopyruvate sulfur transferase. Cyanide metabolites are excreted in the urine. (L96)

Used in photography, electroplating, steel tempering, and production of pigments; [ILO Encyclo: Cyano Compounds] Has been used mainly in blueprints; Also in photography, wood staining, wool dyeing, calico printing, steel tempering, electroplating; Used in Mercer's liquor for etching; [Merck Index]

Steel Producing [Category: Industry]；Electroplating [Category: Plate]；Photographic Processing [Category: Other]；Textiles (Printing, Dyeing, or Finishing) [Category: Industry]

Applying metallic patinas [Category: Hobbies]

Potassium ferricyanide is used to produce the pigment Prussian blue, in blueprint drawing, in photography, to temper iron and steel, in electroplating, for dyeing wool, and as a common laboratory reagent. (L103)