Chlorine
Chlorine
Formula: Cl2
CAS No: 7782-50-5
Chlorine (Cl2) is a greenish-yellow gas with a sharp, pungent odor. It is highly reactive, toxic, and a powerful oxidizing agent. Due to its strong reactivity, chlorine is a critical chemical in a wide range of industrial processes, including chemical synthesis, materials treatment, and electronics manufacturing.
Applications include:
- Etching and cleaning of semiconductor wafers in microelectronics manufacturing for precise pattern transfer and surface preparation.
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Disinfection of municipal drinking water, wastewater, and industrial process water to eliminate harmful microorganisms.
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Oxidation and bleaching in pulp, paper, and textile manufacturing to remove color, whiten materials, and prepare fibers.
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Synthesis of chlorinated chemicals, solvents, and polymers, including polyvinyl chloride (PVC), chlorinated solvents, and pharmaceutical/agrochemical intermediates.
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Treatment of metals and other surfaces for cleaning, passivation, and removal of contaminants prior to coating or further fabrication.
EFC Gases & Advanced Materials supplies high-purity chlorine gas to meet the stringent quality requirements of critical chemical, electronics, and industrial applications. Our production, packaging, and analytical capabilities ensure consistent purity, safe handling, and reliable delivery.
Applications
Specifications
Further Specifications
Cylinder Sizes
- Etch and clean semiconductor wafers.
- Disinfect drinking water, wastewater, and process water.
- Oxidize and bleach in pulp, paper, and textile production.
- Synthesize chlorinated chemicals, solvents, and polymers.
- Treat metals and surfaces for cleaning and passivation.
| Grade 4 | Grade 5 | Grade 5.5 | |
|---|---|---|---|
| Purity | 99.99% | 99.999% | 99.9995% |
| Oxygen | < 50 ppmv | < 1 ppmv | < 1 ppmv |
| Nitrogen | < 50 ppmv | < 2 ppmv | < 2 ppmv |
| Carbon Dioxide | < 30 ppmv | < 4 ppmv | < 3 ppmv |
| Carbon Monoxide | < 5 ppmv | < 0.5 ppmv | < 0.5 ppmv |
| Methane | < 1 ppmv | < 0.1 ppmv | < 0.1 ppmv |
| Water | < 1 ppmv |
| Chemical & Physical Properties | |
|---|---|
| Molecular Weight | 71.91 |
| Sp. Volume | 5.4 cu.ft/lb |
| Pressure @ 70°F | 85.3 psig |
| Valve Outlet | CGA 660 DISS 728 |
| Shipping Information | |
|---|---|
| DOT Name | Chlorine |
| Hazard Class | 2.3 |
| DOT No. | UN 1017 |
| DOT Label | Inhalation Hazard, Corrosive Gas |
| CAS No. | 7782-50-5 |
| Cylinder Sizes | Fill Weight (lb) |
|---|---|
| 1 Ton | 1100 |
| 44L/Size 200 | 110 |
Moisture level guaranteed only when EFC Gases & Advanced Materials prepares the cylinders.
All concentrations are on a mol/mol basis unless otherwise stated.
