Nickel(2+) dicyanide
C2N2Ni
nickel(2+) dicyanide
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Identification
- CAS Number
- 557-19-7
- EC Number
- 209-160-8
- UN Number
- 1653
- Index Number
- 028-034-00-1
- PubChem CID
- 6093189
Physical-chemical properties
- Molecular Formula
- C2N2Ni
- Molar Mass
- 110.73 g/mol
- IUPAC Name
- nickel(2+) dicyanide
Chemical Identifiers
- InChI
- InChI=1S/2CN.Ni/c2*1-2;/q2*-1;+2
- InChI Key
- NLEUXPOVZGDKJI-UHFFFAOYSA-N
Overview
Nickel(2+) dicyanide (CAS 557-19-7) is an inorganic coordination compound containing nickel in the +2 oxidation state with two cyanide ligands. This crystalline compound, with the molecular formula C2N2Ni and a molecular weight of 110.73 g/mol, represents an important member of the transition metal cyanide family. Nickel(2+) dicyanide is classified under EC number 209-160-8 and falls into ADR class 6.1 due to its toxic properties. The compound exhibits significant health and environmental hazards, requiring careful handling protocols in industrial applications. The substance presents multiple serious health risks, including carcinogenic properties (Carc. 1A), specific target organ toxicity following repeated exposure (STOT RE 1), and both respiratory and skin sensitization potential. These hazard classifications necessitate the use of GHS08 (health hazard) and GHS09 (environmental hazard) pictograms, along with the signal word "Danger" on safety documentation. The compound also poses acute and chronic aquatic toxicity risks, making environmental protection measures essential during handling and storage. In industrial applications, nickel(2+) dicyanide serves primarily in electroplating processes where controlled nickel deposition is required. The compound finds use in specialized catalyst preparations and as a precursor in the synthesis of other nickel-containing materials. Unlike related compounds such as nickel(2+) sulfite, which has different coordination chemistry, nickel dicyanide offers specific advantages in applications requiring cyanide ligands. The material requires specialized storage conditions and comprehensive safety protocols due to its toxic nature and environmental impact potential. OYSI maintains technical-grade nickel(2+) dicyanide inventory to support European industrial customers requiring this specialized coordination compound.
Safety & Classification
Carc. 1A; STOT RE 1; Resp. Sens. 1; Skin Sens. 1; Aquatic Acute 1; Aquatic Chronic 1
GHS Pictograms
HHazard Statements (H-Statements)
Describe the nature and severity of the hazard
Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).
First Aid Measures
Inhalation
Measures if vapours or dust are inhaled
First Aid Actions
- +P304IF INHALED:
- +P340Remove person to fresh air and keep comfortable for breathing.
- +P311Call a POISON CENTER/doctor.
Related hazard statements:
Skin Contact
Measures if substance contacts the skin
First Aid Actions
- +P302IF ON SKIN:
- +P352Wash with plenty of water.
- +P361Take off immediately all contaminated clothing.
- +P313Get medical advice/attention.
Related hazard statements:
General Measures
Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)
First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.
Transport (ADR)
| UN Number | 1653 |
| ADR Class | 6.1 |
| Packing Group | II |
| Tunnel Code | D/E |
| Proper Shipping Name | Nickelcyanid, fest |
| Marine Pollutant | No |
Frequently Asked Questions
What is nickel(2+) dicyanide?
Nickel(2+) dicyanide is an inorganic chemical compound with the molecular formula C2N2Ni and CAS number 557-19-7. This nickel cyanide salt has a molecular weight of 110.73 g/mol and appears as a crystalline solid. It is classified as a highly hazardous substance due to its carcinogenic properties, respiratory and skin sensitization potential, and environmental toxicity. The compound is primarily used in specialized industrial applications requiring nickel-based chemistry.
What are the physicochemical properties of nickel(2+) dicyanide?
Nickel(2+) dicyanide is a solid crystalline compound at room temperature, typically appearing as a green to yellow-green powder or crystals. The compound has limited solubility in water and is relatively stable under normal conditions. Its molecular structure consists of nickel(II) ions coordinated with cyanide groups. The substance exhibits typical properties of transition metal cyanides, including thermal stability up to moderate temperatures and potential for complex formation with other ligands.
What is nickel(2+) dicyanide used for?
Nickel(2+) dicyanide is primarily used in electroplating applications, particularly for decorative and protective nickel coatings on metal surfaces. It serves as a nickel source in specialized chemical synthesis and catalyst preparation. The compound is also utilized in certain analytical chemistry procedures and research applications involving nickel chemistry. Due to its hazardous classification, its use is restricted to professional industrial settings with appropriate safety controls and expertise.
How to handle nickel(2+) dicyanide safely?
Safe handling of nickel(2+) dicyanide requires comprehensive personal protective equipment including respiratory protection, chemical-resistant gloves, safety goggles, and protective clothing. Work must be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Avoid skin contact and ingestion completely. Personnel should be trained in handling carcinogenic substances and emergency procedures. Regular health monitoring may be required for workers with potential exposure to this sensitizing and carcinogenic compound.
How to store nickel(2+) dicyanide correctly?
Nickel(2+) dicyanide must be stored in tightly sealed, labeled containers in a cool, dry, well-ventilated area away from incompatible materials. Storage areas should be secure and accessible only to trained personnel due to the compound's carcinogenic classification. Avoid storage near acids, oxidizing agents, and heat sources. Containers should be kept upright and inspected regularly for damage. Emergency spill cleanup materials and safety equipment should be readily available in storage areas.
What to do in case of contact with nickel(2+) dicyanide?
In case of skin contact with nickel(2+) dicyanide, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. If inhaled, move the person to fresh air immediately and seek medical attention. For eye contact, flush with clean water for at least 15 minutes. If ingested, do not induce vomiting and seek immediate medical attention. Always inform medical personnel about the specific substance and its hazardous properties, particularly its carcinogenic classification.
How to dispose of nickel(2+) dicyanide appropriately?
Nickel(2+) dicyanide disposal must comply with local and national hazardous waste regulations due to its classification as a carcinogenic and environmentally hazardous substance. The compound cannot be disposed of in regular waste streams and requires treatment by licensed hazardous waste disposal facilities. Containers should be properly labeled and segregated from other waste types. Small quantities may require specialized chemical treatment to neutralize cyanide content before final disposal through authorized channels.
How to transport nickel(2+) dicyanide?
Nickel(2+) dicyanide is classified under ADR as Class 6.1 (toxic substances), Packing Group II, indicating significant transport hazards. Transportation requires appropriate UN-specification packaging, proper labeling with GHS08 and GHS09 pictograms, and documentation including safety data sheets. Vehicles must comply with ADR regulations for toxic substance transport, including appropriate placarding and emergency equipment. Only trained personnel should handle loading, transport, and unloading operations following established dangerous goods protocols.
Is nickel(2+) dicyanide subject to specific regulations?
Nickel(2+) dicyanide is subject to comprehensive chemical regulations including REACH registration requirements in Europe and CLP classification as Carcinogen 1A with multiple hazard categories. Its use may be restricted under various national and international chemical safety frameworks. Workplace exposure limits apply, and employers must implement strict occupational health measures. The compound requires safety data sheets, hazard communication, and may be subject to reporting requirements due to its carcinogenic and environmental hazard classifications.
Where to buy nickel(2+) dicyanide in Europe?
Nickel(2+) dicyanide is available through OYSI, a specialized European distributor of technical chemicals with expertise in hazardous substances. OYSI provides comprehensive support including proper documentation, safety data sheets, and regulatory compliance assistance for this controlled substance. Due to the compound's hazardous classification, purchases are typically restricted to qualified industrial users with appropriate handling capabilities and safety infrastructure. Contact OYSI directly for availability, specifications, and regulatory requirements for your specific application.
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Data Sources
Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.