फेरोसाइनाइड के ऑक्सीकरण द्वारा प्राप्त फेरिकियन एसिड का नमक

ferricyanide's Usage Examples:

By oxidizing potassium benzene iso-diazotate with alkaline potassium ferricyanide, E.

Hydroferricyanic acid, H 3 Fe(NC)s, obtained by adding concentrated hydrochloric acid to a cold saturated solution of potassium ferricyanide, crystallizes in brown needles, and is easily decomposed.

Turnbull's blue, Fe5(NC)12 or Fe3[Fe(NC)6]2, ferrous ferricyanide, is best obtained by adding a hot solution of potassium ferricyanide to a ferrous salt, and allowing the mixture to stand some time in the presence of an iron salt: 2K 3 Fe(NC)s+3FeSO 4 = Fe3[Fe(NC)s]z+ 3K 2 SO 4.

With silver nitrate it gives an orange red precipitate of silver ferricyanide, Ag 3 Fe(NC)s.

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.

Soluble Prussian blue, K2Fe2[Fe(NC)6]2, potassium ferric ferrocyanide, is formed when a solution of potassium ferrocyanide is added to an insufficiency of a solution of a ferric salt (t), or when potassium ferricyanide is added to a ferrous salt (2): (t) 2K 4 Fe(NC) 6 + 2FeC1 3 = 6KC1 + K2Fe2[Fe(NC)6]2 (2) 2K 3 Fe(NC)s + 2FeC1 2 = 4KC1 -{- K2Fe2[Fe(NC)s]z.

It is also formed by oxidizing bismuth trioxide suspended in caustic potash with chlorine, the pentoxide being formed simultaneously; oxidation and potassium ferricyanide simply gives the tetroxide (Hauser and Vanino, Zeit.

26) has shown that the solution is hastened by many oxidizing agents, especially sodium and manganese dioxides and potassium ferricyanide.

They combine readily with the alkyl iodides to form alkyl acridinium iodides, which are readily transformed by the action of alkaline potassium ferricyanide to N-alkyl acridones.

On oxidation with chromic or nitric acids, or potassium permanganate, it yields nicotinic acid or (3-pyridine carboxylic acid, C 5 H 4 N CO 2 H; alkaline potassium ferricyanide gives nicotyrine, C10H10N2, and hydrogen peroxide oxynicotine, C10H14N20.

ferricyanide's Meaning':

salt of ferricyanic acid obtained by oxidation of a ferrocyanide

Synonyms:

salt,

Antonyms:

dull,