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Sodium ferrocyanide is produced industrially from hydrogen cyanide, ferrous chloride, and calcium hydroxide, the combination of which affords Ca 2 [Fe(CN) 6]·11H 2 O.A solution of this salt is then treated with sodium salts to precipitate the mixed calcium-sodium salt CaNa 2 [Fe(CN) 6] 2, which in turn is treated with sodium carbonate to give the tetrasodium salt.
Ferrocyanide is the name of the anion [Fe 6] 4−. Salts of this coordination complex give yellow solutions. It is usually available as the salt potassium ferrocyanide , which has the formula K 4 Fe(CN) 6 .
The principal process used to manufacture cyanides is the Andrussow process in which gaseous hydrogen cyanide is produced from methane and ammonia in the presence of oxygen and a platinum catalyst. [21] [22] 2 CH 4 + 2 NH 3 + 3 O 2 → 2 HCN + 6 H 2 O. Sodium cyanide, the precursor to most cyanides, is produced by treating hydrogen cyanide with ...
Ferrocyanides are used for table salt. [1] The following anticaking agents are listed in order by their number in the Codex Alimentarius by the Food and Agriculture Organization of the UN. 341 tricalcium phosphate; 460(ii) powdered cellulose; 470b magnesium stearate; 500 sodium bicarbonate; 535 sodium ferrocyanide; 536 potassium ferrocyanide
The pigment is used in paints, it became prominent in 19th-century aizuri-e (藍摺り絵) Japanese woodblock prints, and it is the traditional "blue" in technical blueprints. In medicine, orally administered Prussian blue is used as an antidote for certain kinds of heavy metal poisoning, e.g., by thallium(I) and radioactive isotopes of caesium.
Sodium nitroprusside (SNP), sold under the brand name Nitropress among others, is a medication used to lower blood pressure. [3] This may be done if the blood pressure is very high and resulting in symptoms , in certain types of heart failure , and during surgery to decrease bleeding . [ 3 ]
Sodium cyanide is a compound with the formula Na C N and the structure Na + − C≡N. It is a white, water-soluble solid. Cyanide has a high affinity for metals, which leads to the high toxicity of this salt .
Sodium ferrocyanide – Na 4 [Fe(CN) 6] Sodium fluoride – NaF; Sodium fluorosilicate – Na 2 [SiF 6] Sodium formate – HCOONa; Sodium hydride – NaH; Sodium hydrogen carbonate (Sodium bicarbonate) – NaHCO 3; Sodium hydrosulfide – NaSH; Sodium hydroxide – NaOH; Sodium hypobromite – NaOBr; Sodium hypochlorite – NaOCl; Sodium ...
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