Description

Sodium Cyanide CAS NO 25596-52-5 is a highly reactive inorganic salt widely recognized for its role as a powerful complexing agent for precious metals. Its primary commercial value lies in its critical function within the gold and silver mining industry for the efficient extraction of these metals from ore via the cyanidation process. This essential chemical is also indispensable in electroplating operations and serves as a key precursor in the synthesis of various organic chemicals, including chelating agents, pharmaceuticals, and dyes.

Application

• Gold and Silver Mining (Cyanidation): The predominant global application, used to leach precious metals from ores by forming stable, water-soluble complexes.
• Electroplating: Serves as a complexing agent in baths for the electrodeposition of metals such as gold, silver, copper, and zinc, ensuring smooth, adherent coatings.
• Chemical Synthesis: A vital reagent in organic chemistry for the production of nitriles, cyanohydrins, and other intermediates used in pharmaceuticals, agrochemicals, and dyes.
• Metal Cleaning and Hardening: Employed in surface treatment processes for case hardening of steel and in specialized metal cleaning formulations.
• Chelating Agent Production: Used in the manufacture of chelating agents like EDTA, which are critical for water treatment, food preservation, and detergent formulations.
• Fumigant (Historical/Specialized): Used in controlled, specialized fumigation applications, though heavily regulated.

Basic Information

Product Name	Sodium Cyanide
CAS No.	25596-52-5
Molecular Formula	NaCN
Molecular Weight	49.01 g/mol
Synonyms	Cyanide of Sodium; Cyanobrik; Cyanogran; Cymag; Hydrocyanic Acid, Sodium Salt; Sodium Cyanide, Anhydrous; Sodium Cyanide, Solid; White Cyanide
EINECS	247-138-4

Quality Control

Our Sodium Cyanide is manufactured under stringent process controls to ensure consistent high purity and reliability for industrial applications. Quality is verified through a comprehensive battery of tests including assay, moisture content, and impurity profile analysis. While we supply standard industrial and mining grades, our quality management system ensures traceability and compliance with relevant global safety and transportation regulations (e.g., UN1689). A detailed Certificate of Analysis (COA) is provided with each shipment.

Storage

Preserve in a tightly closed, clearly labeled container, protected from light and moisture. Store in a cool, dry, well-ventilated, dedicated area away from incompatible materials such as acids, strong oxidizers, and moisture. The storage area must be secure, access-controlled, and equipped for emergency response in accordance with all local and international regulations for highly toxic substances. Maintain storage temperature between 15°C and 25°C.

Specification

Item	Specification
Appearance	White crystalline solid or powder
Identification (IR)	Conforms
Assay (NaCN)	≥ 98.0 %
Moisture (Karl Fischer)	≤ 1.0 %
Insolubles in Water	≤ 0.5 %
Chloride (as Cl)	≤ 0.5 %
Sulfate (as SO₄)	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.