Benzyl Cyanide

• Part No.
• 0510010100
• Manuf. No.
• Standard Pack Quantity
• 1

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Description

Cyanidation
The process of extracting gold from ore with cyanide is called cyanidation. The reaction, known as Elsner's Equation, is:
                                   4 Au + 8 CN- + O₂ + 2 H₂O = 4 Au(CN)_2- + 4 OH^-
Although the affinity of cyanide for gold is such that it is extracted preferentially, cyanide will also form complexes with other metals from the ore, including copper, iron and zinc. The formation of strongly bound complexes such as those with iron and copper will tie up cyanide that would otherwise be available to dissolve gold.
Copper cyanides are moderately stable; their formation can cause both operational and environmental concerns, as wastewater or tailings from such operations may have significantly higher cyanide concentrations than would otherwise be present in the absence of copper.
High copper concentrations in the ore increase costs and lower recovery efficiencies by requiring higher cyanide application rates to compensate for reagent that complexes with copper rather than gold.
Cyanidation is also adversely affected by the presence of free sulfur or sulfide minerals in the ore. Cyanide will preferentially leach sulfide minerals and will react with sulfur to produce thiocyanate. These reactions will also enhance the oxidation of reduced sulfur species, increasing the requirement for lime addition to control the pH at a sufficient level to avoid the volatilization of hydrogen cyanide (HCN).
Cyanide chemistry is complex, and those seeking additional information may find the list of reference materials found at the Code's website helpful:

Detailed Product Description
Benzyl Cyanide
1.Assay at least 99.5%
2.Pharmaceutical Intermediate
3.organic intermediates
4.ISO 9001:2008
Benzyl Cyanide

CAS	140-29-4
Molecular Formula:	C8H7N
Molecular Weight	117.15
Melting point:	-23.8°C
Boiling point	233.5°C
Assay	≥99.5%
Water	≤0.2%
Use	used to product medicine,pedtcide intermediates ,Can be used in theproduction of phenyl acetic acid ,phenyl amide ,diphenyl acetonitrile ,phoxim and so on
Packing	200kg plastic pail.