Zinc cyanide
CAS 557-21-1
EC 209-162-9
Formula C2N2Zn
MW 117.42 g/mol
Salts & Minerals Mining & MetalsElectronicsPlastics & Polymers CatalysisSurface Modification & Wetting
Description
Zinc cyanide (CAS 557-21-1, EC 209-162-9, formula C2N2Zn) is an inorganic salt also referenced as Zn(CN)2, Dicyanozinc, and Zinkcyanid. It carries no assigned E-code. The compound is classified under HS code 28371990 and falls within the Salts & Minerals category.
In electroplating and surface finishing, zinc cyanide serves as a source of complexed zinc ions, enabling controlled deposition of uniform zinc coatings onto metal substrates. It also functions as a catalyst and ligand precursor in polymer synthesis, where its coordination chemistry facilitates specific reaction pathways. The mining sector applies it in selective metal recovery processes.
Zinc cyanide is supplied as a crystalline solid or fine white powder and is subject to REACH regulation given its classification as a highly toxic substance requiring strict handling controls. Procurement must account for applicable transport and storage restrictions under ADR. Packaging formats and available grades are confirmed on request.
In electroplating and surface finishing, zinc cyanide serves as a source of complexed zinc ions, enabling controlled deposition of uniform zinc coatings onto metal substrates. It also functions as a catalyst and ligand precursor in polymer synthesis, where its coordination chemistry facilitates specific reaction pathways. The mining sector applies it in selective metal recovery processes.
Zinc cyanide is supplied as a crystalline solid or fine white powder and is subject to REACH regulation given its classification as a highly toxic substance requiring strict handling controls. Procurement must account for applicable transport and storage restrictions under ADR. Packaging formats and available grades are confirmed on request.
Physical Properties
| Melting Point | 800 °C (decomp) |
| Density | 1.852 g/cm³ @ Temp: 20 °C |
| Appearance | Colorless crystalline solid or white powder. Slight, bitter almond odor. Sinks in water; insoluble. |
| Color | White to off-white |
| Form | Powder |
| Water Solubility | Soluble in alkalies, potassium cyanide and ammonia. Insoluble in water and most solvents. |
| Vapor Pressure | 0Pa at 25℃ |
| Log P | -2.31 at 25℃ |
Trade & Regulatory
| HS Code | 28371990 |
| Storage Class | 6.1B - Non-combustible acute toxic Cat. 1 and 2 very toxic hazardous materials |
| WGK (Germany) | 3 |
Other Names
Zn(CN)2ai3-28752ZinkcyanidZinccyanideDicyanozinczincdicyanidecyanuredezinc
Related Products
Raw Materials
Derivatives
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