potassium cyanide, C(NK), is a powerful reducing agent (see p. 89).
This is a sign that the bath is deficient in potassium cyanide.
They are then dipped for a moment in a boiling solution of potassium cyanide.
May be killed by chloroform, or potassium cyanide, or drowned.
potassium cyanide is a white solid characterized by its poisonous properties, and must be used with extreme caution.
Silver which has been blackened by silver sulphide may be laid in a warm 2% solution of potassium cyanide.
It is insoluble in dilute acids, but is readily soluble in excess of potassium cyanide.
Potash solution converts it into a mixture of potassium cyanide and cyanate.
One gram of potassium cyanide will require 1.3076 gram of silver nitrate.
A portion was gently warmed with a few drops of a strong solution of potassium cyanide and two drops of sodium hydroxide.