Purity Chlorine(cl2)

Specifications
- CAS No.: 7782-50-5
- UN No.: 2037
- EINECS No.: 231-959-5
- Molecular Weight: 70.90 g/mol
- Appearance: Colorless
- Melting Point: -101 ℃
- Boiling Point: -34℃
- Density: 3.21kg/m³
- Hazard Class (DOT): 2.3 & 8
- Label: Non-flammable Gas
High-purity chlorine (Cl₂) gas supplied from China for water treatment, chemical synthesis, and industrial processing.
High-purity chlorine (Cl₂) for water disinfection, chemical intermediate production, bleaching applications, and pharmaceutical synthesis.
Chlorine is a yellow-green, highly reactive gas with a choking, asphyxiating odor. As a member of the halogen family, it is denser than air, soluble in water and alkaline solutions, and readily dissolves in organic solvents such as carbon disulfide and carbon tetrachloride. It is easily compressed into a yellow-green liquid for storage and transport. Chlorine serves as a powerful oxidizing agent and a key raw material in the chlor-alkali industry, widely used for water and wastewater disinfection, production of organic and inorganic chemicals (including PVC, solvents, and pharmaceuticals), and as a bleaching agent in pulp and textile industries. It is typically transported as a liquefied compressed gas under pressure.
Global Shipping & Export Compliance
Chlorine (UN 2037) is classified as a toxic and corrosive compressed gas and must be handled under strict hazardous materials regulations.
- Sea freight (FCL / LCL) – standard export method
- Air freight – limited availability (regulatory controlled)
Required Export Documents
- Material Safety Data Sheet (MSDS)
- Certificate of Analysis (COA)
- Dangerous Goods Declaration (DGD)
- UN-certified cylinder documentation
- Commercial invoice & packing list
How to Order Chlorine Gas from China
- Send technical requirements (purity, cylinder specification, application)
- Receive quotation (EXW / FOB / CIF options)
- Confirm cylinder specification & compliance
- Review COA, MSDS, and certification documents
- Production, filling, and quality inspection
- Hazardous goods shipping arrangement
- Delivery and final inspection at destination
Common Mistakes When Buying Chlorine Gas
- Choosing suppliers only based on lowest price
- Ignoring cylinder certification and pressure rating
- Not verifying moisture and impurity levels
- Skipping third-party inspection before shipment
- Overlooking export documentation compliance
- Underestimating safety requirements for toxic and corrosive gas handling
- Not accounting for hydrogen content (mixtures with >5% H₂ can be explosive under strong light)
Packaging
| Cylinder Capacity | Valve | Quantity |
|---|---|---|
| 47L | DISS634 | 50kg |
Industrial Grade Purity Chlorine(Cl2) 99.999%
| Specification | >99.999% |
|---|---|
| H2O | 0.172ppmv |
| O2+Ar | < 0.01ppmv |
| N2 | < 0.01ppmv |
| H2 | < 0.02ppmv |
| CO | < 0.01ppmv |
| CO2 | 0.04 |
| CH4 | < 0.01ppmv |
| Fe | 0.041 |
| Cr | 0.019 |
| Cu | < 0.010 |
| Zn | < 0.010 |
Frequently Asked Questions
