Zinc Cyanide (Zn(CN)₂): Legal, Safe, and Transaction-Ready Guide for Researchers and Industry
Introduction
Zinc Cyanide is an industrial inorganic chemical with critical applications in electroplating, chemical synthesis, and materials research. Due to its extreme toxicity, it is tightly regulated worldwide. This guide helps labs, industrial users, and educational institutions navigate sourcing, legal compliance, and safe usage of Zinc Cyanide.
Key Chemical Information
| Property | Description |
|---|---|
| Chemical Name | Zinc Cyanide |
| Formula | Zn(CN)₂ |
| CAS Number | 557-21-1 |
| Appearance | White crystalline powder |
| Density | 2.05 g/cm³ |
| Solubility | Slightly soluble in water, soluble in acids |
| Decomposition | Releases HCN when in contact with acids |
| Molar Mass | 97.44 g/mol |
Industrial and Research Applications
- Electroplating: Provides zinc ions for corrosion-resistant metal coatings.
- Organic & Inorganic Synthesis: Reagent for cyanide-containing compounds and metal complexes.
- Materials Science: Used in metal-organic frameworks (MOFs) and coordination polymers.
- Analytical Chemistry: Reference for cyanide coordination studies.
Legal and Regulatory Overview
| Jurisdiction | Regulatory Details |
|---|---|
| USA (OSHA/EPA) | Strict exposure limits; handling requires PPE and ventilated hoods. |
| EU (REACH) | Classified as a hazardous chemical; only licensed distributors may sell. |
| International Transport | UN 1689: hazardous material; special shipping protocols required. |
| Institutional Guidelines | Must comply with IBC, GLP, and chemical inventory tracking. |
Important: Only licensed research institutions, industrial facilities, or certified labs are authorized to handle Zinc Cyanide.
Safe Handling and Storage Guidelines
- PPE Requirements: Lab coat, gloves, goggles, respirator.
- Work Environment: Conduct all manipulations in a fume hood with cyanide emergency protocols in place.
- Storage: Airtight containers, dry environment, away from acids and moisture.
- Emergency Measures: Cyanide antidotes (e.g., hydroxocobalamin) must be available.
- Waste Disposal: Follow local hazardous waste regulations; do not pour into drains.
Step-by-Step Acquisition Guide for Licensed Institutions
| Step | Action |
|---|---|
| 1. Assess Research Needs | Determine the quantity and purity of Zinc Cyanide required for specific experiments or industrial processes. |
| 2. Verify Licensing Requirements | Ensure your institution or company holds licenses to handle hazardous cyanide compounds. |
| 3. Identify Accredited Suppliers | Only purchase from certified industrial chemical distributors (Sigma-Aldrich, Thermo Fisher, Alfa Aesar). |
| 4. Request Documentation | Obtain COA (Certificate of Analysis), SDS (Safety Data Sheet), and purity certifications. |
| 5. Place Order through Approved Channels | Use institutional procurement systems for proper tracking. |
| 6. Receive & Inspect Shipment | Check for container integrity, labeling, and temperature control. |
| 7. Store Safely | Lock storage areas; segregate from acids and incompatible chemicals. |
| 8. Maintain Inventory & Usage Logs | Record batch numbers, quantities, and disposal details for regulatory compliance. |
Analytical and Research Tools
- X-ray Crystallography: Determine Zn-CN bonding geometry.
- IR Spectroscopy: Detect CN stretching vibrations.
- UV-Vis Spectroscopy: Study metal-ligand interactions.
- Titration/Cyanide Analysis: Quantify cyanide safely.
- TGA/DSC: Assess thermal decomposition and stability.
Tip: Always use validated analytical methods when handling toxic cyanide compounds.
Keywords & Tags
Keywords: Zinc Cyanide, Zn(CN)₂, industrial cyanide, electroplating chemicals, MOFs precursor, hazardous chemical handling, licensed chemical suppliers, chemical inventory, lab safety, cyanide regulations.
Tags: #ZincCyanide #ZnCN2 #IndustrialChemicals #LabSafety #Electroplating #MOFResearch #ChemicalHandling #HazardousMaterials #LicensedSuppliers #ResearchCompliance
Conclusion
Zinc Cyanide is a powerful industrial chemical with significant applications in electroplating, organic synthesis, and materials research. Safe use requires:
- Licensed suppliers
- Strict adherence to regulatory guidelines
- Robust lab safety protocols
This guide provides a clear roadmap for commercial, navigational, and research use, making it easy for institutions to source, handle, and use Zinc Cyanide legally and safely.
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Zinc Cyanide Structural Information (CAS-557-21-1)
The molecular formula for zinc cyanide is Zn(CN)2. In its structure, zinc atoms are coordinated in a tetrahedral environment, with cyanide ligands acting as bridges between the zinc centers. This configuration forms two “interpenetrating” frameworks, often described as an “expanded diamondoid” structure. The cyanide group can exhibit head-to-tail disorder, where each zinc atom may be surrounded by a varying number of carbon and nitrogen atoms, ranging from one to four. Notably, zinc cyanide has one of the most significant negative coefficients of thermal expansion, surpassing zirconium tungstate, the previous record holder.
Chemical Properties of Zinc Cyanide (CAS-557-21-1)
Zinc cyanide, typical of inorganic polymers, exhibits low solubility in most solvents. However, it can be dissolved or degraded in aqueous solutions containing basic ligands such as hydroxide, ammonia, or additional cyanide, resulting in the formation of anionic complexes.
Synthesis of Zinc Cyanide (CAS-557-21-1)
Zinc cyanide is synthesized easily by reacting aqueous solutions of cyanide and zinc ions. A common preparation method involves a d
- Zinc Cyanide Plating Solutions (Classic Reprint by William Blum)
Packaging and Availability:
Zinc cyanide is typically available in powder form, with packaging options ranging from 25 to 50 kg, depending on customer requirements. Bulk orders and customized packaging are also available.
For more information or to place an order for Zinc Cyanide(CAS-557-21-1), contact us today to receive the latest pricing and delivery options.









