Precious metal extract

Appearance: White crystalline powder.
Solubility: Highly soluble in water, soluble in liquid ammonia, slightly soluble in ethanol, ether, and benzene.
Reactivity: Reacts readily with acids, even weak acids, to release hydrogen cyanide gas. Metals such as iron, zinc, nickel, copper, cobalt, silver, and cadmium dissolve in sodium cyanide solutions to form corresponding cyanides. In the presence of oxygen, it dissolves precious metals like gold and silver to form complex salts.
Hazardous Characteristics: Highly toxic. Decomposes in moist air or water, releasing small amounts of hydrogen cyanide. Thermal decomposition in oxygenated environments produces hydrogen cyanide, carbon monoxide, carbon dioxide, and nitrogen oxide fumes. Reacts violently with nitrates, nitrites, and chlorates, posing an explosion risk.
Harmful Decomposition Products: (CN)₂, nitrogen oxides, carbon monoxide.

Appearance: White crystalline powder
Odor: Slight bitter almond smell
Properties: Hygroscopic, highly toxic. Can cause fatal poisoning upon skin contact with wounds, inhalation, or ingestion, even in small amounts.

Chemical Industry:
As a key basic raw material, it is used for producing inorganic cyanides, hydrocyanic acid, and various organic compounds like polymethyl methacrylate, synthetic materials, nitrile rubber, and copolymers.

Metallurgy:
Extracting precious metals such as gold and silver.

Electroplating:
Main component in electroplating copper, silver, cadmium, and zinc. Enhances anodic polarization to stabilize plating solutions and achieve uniform coatings.

Textile Industry:
Used as a mordant and in liquid carburizing and nitriding of steel.

Medical Industry:
For manufacturing intermediates like methyl cyanoacetate and diethyl malonate.

Dye Industry:
For producing cyanuric chloride, a precursor for reactive dyes and brighteners.

Direct Derivatives of Sodium Cyanide:
Inorganic compounds: Sodium ferrocyanide, potassium ferrocyanide, potassium cyanide, zinc cyanide, barium cyanide, cuprous cyanide, sodium thiocyanate, and potassium thiocyanate.

Organic compounds:
Cyanoacetic acid, malononitrile, methionine, benzyl cyanide, and cyanuric chloride.

Products via hydrogen cyanide synthesis:
Methyl methacrylate, butyl methacrylate, methylacrylic acid, azobisisobutyronitrile, azobisisoheptanonitrile, nitrilotriacetic acid, hydroxyacetonitrile.
This product description highlights sodium cyanide’s versatility across industries while emphasizing its toxicity and safe handling requirements.

Packaging: 50 kg drum