Calcium dicyanide

C2CaN2

calcium dicyanide

CAS592-01-8
GHS06 Gefahrensymbol: Giftig – Totenkopf mit Knochen
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

Consulting for Calcium dicyanide

Our experts support you with application, dosage, and compliance.

Request Consultation

Identification

CAS Number
592-01-8
EC Number
209-740-0
UN Number
1575
Index Number
020-002-00-5
PubChem CID
6093192

Physical-chemical properties

Molecular Formula
C2CaN2
Molar Mass
92.11 g/mol
IUPAC Name
calcium dicyanide

Chemical Identifiers

InChI
InChI=1S/2CN.Ca/c2*1-2;/q2*-1;+2
InChI Key
ZQULWKDLLXZZSP-UHFFFAOYSA-N

Overview

Calcium dicyanide (CAS 592-01-8) is an inorganic cyanide salt with high acute toxicity and significant environmental hazard potential. This crystalline compound, with the molecular formula C2CaN2 and a molecular weight of 92.11 g/mol, represents one of the more hazardous calcium-based chemical compounds used in industrial applications. The substance is classified under European CLP regulations with multiple serious hazard classifications, including Acute Toxicity Category 2 and both acute and chronic aquatic toxicity Category 1, reflecting its potential for severe harm to both human health and aquatic ecosystems. The compound's toxicological profile places it in the same high-risk category as other highly toxic substances such as sodium azide, requiring stringent handling protocols and specialized safety equipment. Like other cyanide compounds, calcium dicyanide releases highly toxic hydrogen cyanide gas under acidic conditions, making proper storage and handling conditions critical for workplace safety. Key safety characteristics include its classification under ADR Class 6.1 (toxic substances) for transport purposes, with mandatory GHS06 (skull and crossbones) and GHS09 (environmental hazard) pictograms. The "Danger" signal word indicates the highest level of hazard severity under the globally harmonized system. Primary industrial applications include metal extraction processes, particularly in gold and silver mining operations where cyanide compounds are used for ore processing, specialized chemical synthesis as an intermediate, and certain electroplating applications requiring precise cyanide chemistry. These applications demand extensive safety protocols and environmental monitoring due to the compound's extreme toxicity. OYSI maintains availability of calcium dicyanide for qualified industrial customers with appropriate safety certifications and handling capabilities.

Safety & Classification

Danger
Classification:

Acute Tox. 2 *; Aquatic Acute 1; Aquatic Chronic 1

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H300

Fatal if swallowed.

H400

Very toxic to aquatic life.

H410

Very toxic to aquatic life with long lasting effects.

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

Ingestion

Fatal

Measures if substance is accidentally swallowed

First Aid Actions

  • +P301IF SWALLOWED:
  • +P330Rinse mouth.
  • +P331Do NOT induce vomiting.
  • +P310Immediately call a POISON CENTER/doctor.

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 Number1575
ADR Class6.1
Packing GroupI
Tunnel CodeC/E
Proper Shipping NameCalciumcyanid
Marine PollutantNo

Frequently Asked Questions

What is calcium dicyanide?

Calcium dicyanide is a highly toxic chemical compound with the molecular formula C2CaN2 and CAS number 592-01-8. This inorganic salt has a molecular weight of 92.11 g/mol and belongs to the cyanide family of compounds. It is classified as acutely toxic (Category 2) and presents severe hazards to aquatic environments. The substance requires careful handling due to its dangerous properties and is subject to strict safety regulations under European chemical legislation.

What are the physicochemical properties of calcium dicyanide?

Calcium dicyanide is typically a white to off-white crystalline solid at room temperature. The compound is highly soluble in water, which contributes to its toxicity profile and environmental hazard classification. Like other cyanide compounds, it may release toxic hydrogen cyanide gas under acidic conditions or when heated. Its molecular structure consists of calcium ions bonded to cyanide groups, making it extremely dangerous for human health and aquatic ecosystems.

What is calcium dicyanide used for?

Calcium dicyanide is primarily used in specialized industrial applications, particularly in metallurgy and chemical synthesis processes. It serves as a source of cyanide ions in certain extraction processes and can be used in specialized chemical reactions where controlled release of cyanide is required. Due to its extreme toxicity, its use is highly restricted and limited to professional industrial settings with appropriate safety measures and regulatory compliance.

How to handle calcium dicyanide safely?

Calcium dicyanide requires extreme safety precautions due to its acute toxicity. Personnel must wear full personal protective equipment including chemical-resistant gloves, safety goggles, and respiratory protection. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Only trained professionals should handle this substance, following strict safety protocols. Emergency procedures and antidotes should be readily available, and all local safety regulations must be strictly observed.

How to store calcium dicyanide correctly?

Calcium dicyanide must be stored in a cool, dry, well-ventilated area away from incompatible materials such as acids, oxidizing agents, and moisture sources. Storage containers should be tightly sealed and made of compatible materials. The storage area must be secured with restricted access limited to authorized personnel only. Temperature should be controlled to prevent decomposition, and the area should be equipped with appropriate safety equipment including eyewash stations and emergency ventilation systems.

What to do in case of contact with calcium dicyanide?

Calcium dicyanide exposure requires immediate emergency response due to its acute toxicity. In case of skin contact, immediately flush with copious amounts of water for at least 15 minutes and remove contaminated clothing. For eye contact, rinse immediately with water for at least 15 minutes. If inhaled, move the person to fresh air immediately and seek urgent medical attention. For ingestion, do not induce vomiting and seek immediate medical help. Always contact emergency services promptly.

How to dispose of calcium dicyanide appropriately?

Calcium dicyanide disposal must comply with strict hazardous waste regulations due to its acute toxicity and environmental hazard classification. The substance cannot be disposed of through regular waste streams and requires specialized hazardous waste treatment facilities. Disposal must be carried out by licensed waste management companies with appropriate permits. All disposal activities must be documented and reported according to local environmental regulations and REACH requirements for hazardous chemical waste management.

How to transport calcium dicyanide?

Calcium dicyanide is classified under ADR Class 6.1 (toxic substances) Packing Group I, indicating its high toxicity level. Transportation requires specialized packaging meeting UN specification standards and appropriate hazard labeling including GHS06 and GHS09 pictograms with 'Danger' signal word. Only certified carriers with proper training and equipment can transport this substance. All transport documentation must comply with ADR regulations, and emergency response information must accompany shipments.

Is calcium dicyanide subject to special regulations?

Calcium dicyanide is subject to comprehensive European chemical regulations including REACH registration requirements and CLP classification obligations. While not currently listed as a Substance of Very High Concern (SVHC), its acute toxicity classification subjects it to strict handling, labeling, and safety data sheet requirements. Users must comply with occupational exposure limits, environmental discharge restrictions, and specialized training requirements. Import and use may require specific permits depending on application and quantities involved.

Where to buy calcium dicyanide in Europe?

Calcium dicyanide is available through specialized chemical distributors in Europe, including OYSI, which serves as a reliable supplier of technical chemicals across European markets. Due to its highly toxic nature and regulatory requirements, purchases are typically restricted to qualified industrial customers with appropriate handling capabilities and permits. Buyers must demonstrate legitimate use, proper safety infrastructure, and compliance with applicable regulations before orders can be processed and delivered.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.