A gas is classified as toxic when a median lethal concentration in air of more than 200 ppm but not more than 2,000 ppm by volume of gas or vapor, when administered by continuous inhalation for 1 hour or less can lead to death of albino rats.

Chlorine

Chlorine is a highly reactive, greenish-yellow gas with a pungent odor. It is a chemical element with the symbol Cl and atomic number 17. Chlorine is a key component in a wide range of industrial applications due to its disinfectant properties, ability to form various compounds, and role as an oxidizing agent.

Application:

  • Water Treatment:

    Chlorine is widely used as a disinfectant in water treatment processes to kill bacteria, viruses, and other microorganisms. It is added to drinking water, swimming pools, and wastewater to ensure microbiological safety and prevent waterborne diseases.

  • Chemical Manufacturing:

    Chlorine serves as a precursor in the production of numerous chemicals, including PVC (polyvinyl chloride), chlorinated solvents, pesticides, and pharmaceuticals. It is used in the synthesis of chlorinated intermediates, such as chloroform, carbon tetrachloride, and chlorobenzene.

  • Bleaching:

    Chlorine is utilized in the bleaching of pulp and paper to remove lignin and brighten the color of paper products. It is also used in textile bleaching to remove stains and impart whiteness to fabrics.

  • Sanitization and Disinfection:

    Chlorine-based compounds, such as sodium hypochlorite (bleach) and calcium hypochlorite, are widely used for sanitization and disinfection purposes. They are employed in household cleaning products, surface disinfectants, and industrial sanitation processes.

  • Polymer Manufacturing:

    Chlorine is a key ingredient in the production of PVC, one of the most widely used thermoplastic polymers. PVC is used in construction materials, pipes, window frames, flooring, and a variety of other applications.

  • Pharmaceuticals:

    Chlorine is used in the synthesis of various pharmaceutical compounds, including antibiotics, antiseptics, and disinfectants. It is also employed in the production of chloroquine, a medication used to treat malaria and certain autoimmune conditions.

  • Solvent Extraction:

    Chlorinated solvents, such as carbon tetrachloride and chloroform, are used in solvent extraction processes for the separation and purification of organic compounds.

  • Metal Extraction:

    Chlorine is used in the extraction of metals from ores, particularly in the production of titanium and magnesium.

CAS No. 7782-50-5
Molecular Weight 70.90
Phase at STP Gas
Appearance Greenish -Yellow gas
Odour Pungent , Suffocating Odour
Taste Bitter , Metallic
Category Oxidizer , Toxic , Irritant , Environmental Hazard
Specification
Purity 99.8 %
Moisture < 0.01ppm
Packing 900 KG Tonners 100 KG Tonners

Anhydrous Hydrogen Chloride

Anhydrous hydrogen chloride, often abbreviated as HCl, is a colorless, highly corrosive gas with a sharp, pungent odor. It is a compound of hydrogen and chlorine, existing as a diatomic molecule (HCl) at standard temperature and pressure.

Application:

  • Chemical Synthesis:

    Anhydrous hydrogen chloride is widely used in the chemical industry as a precursor or reagent in various synthesis processes. It is used in the production of chlorinated compounds such as vinyl chloride, which is a precursor to PVC (polyvinyl chloride), and chloroform.

  • Pharmaceutical Manufacturing:

    Hydrogen chloride gas is utilized in pharmaceutical synthesis for the production of pharmaceutical intermediates and active pharmaceutical ingredients (APIs). It is used in the synthesis of drugs such as chloroquine, which is used to treat malaria, and in the manufacture of various pharmaceutical formulations.

  • Waste Water Treatment:

    Anhydrous hydrogen chloride is sometimes used in wastewater treatment processes to adjust pH levels and neutralize alkaline wastewater streams. It can also be used to remove heavy metals and precipitate metal hydroxides from wastewater through precipitation reactions.

  • Laboratory Applications:

    Hydrogen chloride gas is commonly used in laboratories as a reagent for various chemical reactions and as a source of gaseous chlorine. It is used in analytical chemistry for acid digestion, pH adjustment, and as a titrant in acid-base titrations.

  • Etching and Cleaning:

    Anhydrous hydrogen chloride is used in the semiconductor industry for etching silicon wafers and in the production of microelectronics. It is also used in the metalworking industry for cleaning and surface treatment of metals prior to plating or coating.

  • Acid Chloride Formation:

    In organic synthesis, anhydrous hydrogen chloride is used to convert carboxylic acids into acid chlorides through the Fischer esterification reaction. Acid chlorides are important intermediates in organic chemistry and are used in the synthesis of various organic compounds.

  • Food and Beverage Industry:

    Anhydrous hydrogen chloride is used in the food industry for pH adjustment, acidification, and as a flavoring agent in certain food products.

CAS No. 7646-01-0
Molecular Weight 36.46
Phase at STP Gas
Appearance Slightly yellow
Odour Sharp irritating odour
Taste Faintly bitter
Category Toxic, Corrosive
Grade Special
Packing Compressed Gas Cylinders & Manifold Coupled Pallets
Grades Special
Phase Gas
Specification
Purity 99.7%
Moisture <10 ppm
Chlorinated > Hydrocarbons <500 ppm
Chlorine <100 ppm
Other Impurities <2400 ppm
Packing Compressed Gas Cylinders
Manifold Coupled Pallet