Dichlorozinc
Cl2Zn
dichlorozinc
Consulting for Dichlorozinc
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Identification
- CAS Number
- 7646-85-7
- EC Number
- 231-592-0
- UN Number
- 2331
- Index Number
- 030-003-00-2
- PubChem CID
- 5727
Physical-chemical properties
- Molecular Formula
- Cl2Zn
- Molar Mass
- 136.30 g/mol
- IUPAC Name
- dichlorozinc
Chemical Identifiers
- InChI
- InChI=1S/2ClH.Zn/h2*1H;/q;;+2/p-2
- InChI Key
- JIAARYAFYJHUJI-UHFFFAOYSA-L
Overview
Dichlorozinc (CAS 7646-85-7) is an inorganic zinc halide compound with high solubility and strong corrosive properties. Dichlorozinc, also known by its IUPAC name dichlorozinc, represents a fundamental inorganic compound in industrial chemistry applications. This white crystalline solid, with the molecular formula Cl2Zn and molecular weight of 136.3 g/mol, serves as an essential intermediate in various chemical processes and manufacturing operations. The compound exhibits exceptional water solubility, forming highly concentrated solutions that release significant heat upon dissolution, making it valuable in applications requiring rapid zinc ion delivery. From a safety perspective, dichlorozinc presents multiple hazard classifications requiring careful handling protocols. The compound carries Danger signal word designation with GHS pictograms including GHS07, GHS05, and GHS09, indicating acute toxicity, corrosive properties, and environmental hazards. Its Skin Corr. 1B classification demands strict personal protective equipment usage, while its Aquatic Acute 1 and Aquatic Chronic 1 ratings necessitate controlled environmental release prevention. The ADR Class 8 transport classification reflects its corrosive nature during shipping and storage operations. Industrial applications of dichlorozinc span across galvanizing operations, catalyst preparation, and specialized chemical synthesis processes. The compound serves as a zinc source in electroplating baths and metal treatment solutions, where its high solubility provides advantages over less soluble zinc compounds. Unlike complex organic compounds such as N-cyclohexylcyclohexanamine used in corrosion inhibition, dichlorozinc offers direct metal ion availability for surface treatment applications. Additionally, it functions as a precursor in producing zinc-based catalysts and serves in textile processing operations requiring zinc coordination chemistry. OYSI maintains reliable supply chains for dichlorozinc, ensuring consistent availability for European industrial customers requiring this essential inorganic chemical.
Safety & Classification
Acute Tox. 4 *; Skin Corr. 1B; 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
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:
Eye Contact
Measures if substance gets into the eyes
First Aid Actions
- +P305IF IN EYES:
- +P351Rinse cautiously with water for several minutes.
- +P338Remove contact lenses, if present and easy to do. Continue rinsing.
- +P313Get medical advice/attention.
Related hazard statements:
Ingestion
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 Number | 2331 |
| ADR Class | 8 |
| Packing Group | III |
| Tunnel Code | E |
| Proper Shipping Name | Zinkchlorid, wasserfrei, fest |
| Marine Pollutant | No |
Frequently Asked Questions
What is dichlorozinc?
Dichlorozinc is an inorganic chemical compound with the molecular formula Cl2Zn and CAS number 7646-85-7. This zinc halide has a molecular weight of 136.3 g/mol and appears as a white crystalline solid. It is classified as a corrosive substance with acute toxicity properties and significant environmental hazards. Dichlorozinc is highly soluble in water and hygroscopic, meaning it readily absorbs moisture from the air. The compound is primarily used in industrial applications requiring zinc chloride chemistry and serves as an important intermediate in various chemical processes.
What are the physicochemical properties of dichlorozinc?
Dichlorozinc is a white crystalline solid that is highly soluble in water and exhibits hygroscopic properties, readily absorbing atmospheric moisture. The compound has no characteristic odor in its pure form but may develop a slight acidic smell when exposed to humid conditions due to hydrolysis. It has a melting point around 290°C and is also soluble in alcohols and other polar solvents. The substance forms acidic aqueous solutions and can release hydrogen chloride gas under certain conditions, contributing to its corrosive nature.
What is dichlorozinc used for?
Dichlorozinc is primarily used as a catalyst and intermediate in organic synthesis reactions, particularly in pharmaceutical and fine chemical manufacturing. It serves as a Lewis acid catalyst in various chemical transformations and is employed in the production of other zinc compounds. The substance finds applications in electroplating processes, textile treatment, and as a dehydrating agent in certain industrial processes. Additionally, it is used in the synthesis of organozinc compounds and as a source of zinc ions in specialized chemical reactions requiring controlled zinc content.
How to handle dichlorozinc safely?
Dichlorozinc must be handled with appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing due to its Skin Corr. 1B classification. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation of dust or vapors. Avoid contact with skin, eyes, and clothing as the substance can cause severe chemical burns. Use non-sparking tools when handling and ensure emergency eyewash stations and safety showers are readily accessible. Always follow proper hygiene practices and wash hands thoroughly after handling.
How to store dichlorozinc correctly?
Dichlorozinc should be stored in a cool, dry place away from moisture due to its hygroscopic nature. Keep containers tightly sealed in original packaging and store in areas with controlled temperature and humidity. The substance should be kept away from incompatible materials such as strong bases, aluminum, and certain metals that may react violently. Storage areas must be well-ventilated and equipped with appropriate spill containment measures. Ensure storage locations are accessible only to trained personnel and are clearly labeled with appropriate hazard warnings and safety information.
What to do in case of contact with dichlorozinc?
Dichlorozinc contact requires immediate action due to its corrosive properties. For skin contact, immediately remove contaminated clothing and flush the affected area with plenty of water for at least 15 minutes, then seek medical attention. In case of eye contact, rinse immediately with water for at least 15 minutes while holding eyelids open and get emergency medical care. If inhaled, move the person to fresh air and seek medical attention if respiratory irritation occurs. For ingestion, do not induce vomiting and seek immediate medical attention while rinsing the mouth with water.
How to dispose of dichlorozinc appropriately?
Dichlorozinc disposal must comply with local and national hazardous waste regulations as it is classified as environmentally hazardous (Aquatic Acute 1, Aquatic Chronic 1). The substance cannot be disposed of in regular waste streams and requires treatment by licensed hazardous waste management companies. Small quantities should be neutralized carefully by qualified personnel before disposal, while larger amounts need professional hazardous waste collection. Always consult local environmental authorities for specific disposal requirements and maintain proper documentation of waste disposal activities to ensure regulatory compliance.
How to transport dichlorozinc?
Dichlorozinc is classified under ADR Class 8 (Corrosive substances) Packing Group III for transportation purposes. It must be packaged in appropriate containers that meet UN specification requirements and are compatible with corrosive materials. Shipping documentation must include proper shipping names, hazard labels, and emergency response information. Vehicles transporting this substance require appropriate placarding and drivers need ADR certification. The transport must comply with routing restrictions and quantity limitations specified in dangerous goods regulations, and emergency equipment must be available during transport.
Is dichlorozinc subject to specific regulations?
Dichlorozinc is subject to various European chemical regulations including REACH registration requirements and CLP classification obligations. The substance is not currently listed as an SVHC (Substance of Very High Concern) under REACH. However, due to its corrosive and environmental hazard classifications, it falls under strict labeling and safety data sheet requirements. Users must comply with occupational exposure limits, environmental discharge restrictions, and proper classification and labeling according to GHS pictograms GHS05, GHS07, and GHS09. Industrial users may need additional permits for environmental releases.
Where to buy dichlorozinc in Europe?
Dichlorozinc is available through OYSI, a European distributor specializing in technical chemical products. As an established chemical supplier, OYSI can provide dichlorozinc with proper documentation, safety data sheets, and regulatory compliance support throughout Europe. The company offers technical grade materials suitable for industrial applications and research purposes. For procurement, contact OYSI directly to discuss specific requirements, quantities, packaging options, and delivery arrangements. OYSI ensures all products meet European chemical regulations and provides comprehensive customer support for safe handling and application guidance.
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Data Sources
Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.