Noun:

ஒரு வகை நேர் சேர்மம்,

cyanide's Usage Examples:

- This includes compounds of cyanogen such as hydrocyanic (prussic) acid, cyanides of potassium, sodium, 'c.

dissolving the gold in potassium cyanide solution, and then precipitating the metal; 5.

In the Transvaal the operation occupies 32 to 4 days for fine sands, and up to 14 days for coarse sands; the quantity of cyanide per ton of tailings varies from 0.

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.

They are soluble in water and give characteristic precipitates with platinic and auric chlorides, and with potassium ferrocyanide.

When cyanogen is prepared by heating mercuric cyanide, a residue known as para-cyanogen, (CN)x, is left; this is to be regarded as a polymer of cyanogen.

Thus the cell - copper I potassium cyanide solution I potassium sulphate solution - zinc sulphate solution I zinc - gives a current which carries copper into solution and deposits zinc.

The ferrocyanide solution is standardized by dissolving i gramme of pure zinc in 6 cc.

Potassium cyanide may be obtained by fusing potassium ferrocyanide either alone - K4Fe(NC)64KNC+ FeC2+N2 - or with potassium carbonate [V.

Potassium ferricyanide, K 3 Fe(NC)s, red prussiate of potash, is obtained by oxidizing potassium ferrocyanide with chlorine, bromine, 'c.

Mercuric sulphocyanide.

Aurous sulphide, Au 2 S, is a brownishblack powder formed by passing sulphuretted hydrogen into a solution of potassium aurocyanide and then acidifying.

Synonyms:

potassium cyanide, salt, sodium cyanide,

Antonyms:

dull,