All You Need to Know about CAS 95-63-6: Properties and Uses

Chemical substances play an indispensable role in our everyday lives, from household products to industrial processes. One such compound is CAS 95-63-6, a vital chemical with various properties and uses. In this blog, we'll explore CAS 95-63-6 in detail, uncovering its characteristics, applications, and safety considerations.

What is CAS 95-63-6? 

CAS 95-63-6 is the Chemical Abstracts Service (CAS) registry number for 1,2-dichloroethane. Also known by its common name, ethylene dichloride (EDC), this colorless liquid compound consists of two chlorine atoms and two carbon atoms in its chemical structure. The molecular formula of CAS 95-63-6 is C2H4Cl2.

Properties of CAS 95-63-6

a) Physical Properties:

  • CAS 95-63-6 has a relatively low boiling point of approximately 83.5°C (182.3°F) and a melting point of -35.7°C (-32.3°F). This characteristic makes it a volatile liquid at ambient conditions.

  • It is sparingly soluble in water, with a solubility of around 1.25 g/100 mL at 25°C (77°F). However, it dissolves well in other organic solvents.

  • The compound has a distinct, sweet odor, which can be detected at low concentrations.

b) Chemical Properties:

  • CAS 95-63-6 is primarily used as an intermediate in the production of various chemicals, including vinyl chloride, which is used to make polyvinyl chloride (PVC) plastics.

  • It is susceptible to combustion and can release harmful gases, such as hydrogen chloride and phosgene, when exposed to fire.

  • In the presence of sunlight and oxygen, 1,2-dichloroethane can contribute to the formation of photochemical smog.

Uses of CAS 95-63-6

a) PVC Production

The most significant application of CAS 95-63-6 is in the production of polyvinyl chloride (PVC) resin. PVC is one of the most widely used plastics globally and finds applications in various industries, including construction, automotive, and healthcare. EDC serves as a vital building block in the synthesis of vinyl chloride, which is then polymerized to form PVC.

b) Solvent and Extractant

CAS 95-63-6 acts as a solvent in various chemical processes, including the extraction of certain natural products, fats, and oils. Its solvency properties make it useful in paint, varnish, and adhesive formulations.

c) Chemical Intermediates

EDC serves as an intermediate in the synthesis of several organic compounds, such as trichloroethylene, perchloroethylene, and ethyleneamines. These compounds have diverse applications, ranging from degreasing agents and dry-cleaning solvents to chelating agents in water treatment.

Safety Considerations

As with any chemical substance, precautions should be taken when handling CAS 95-63-6 to ensure the safety of individuals and the environment:

  • CAS 95-63-6 is classified as a hazardous substance, and exposure to high concentrations can cause health issues, including respiratory and nervous system effects.

  • It is essential to use proper ventilation and personal protective equipment (PPE) when working with EDC to avoid inhalation and skin contact.

  • The compound should be stored in a cool, well-ventilated area, away from direct sunlight and incompatible materials.

CAS 95-63-6, 1,2-dichloroethane, plays a vital role in the production of polyvinyl chloride (PVC) and various chemical intermediates. Its properties as a solvent and chemical reagent make it indispensable in several industrial processes. However, safety is of utmost importance when dealing with this compound due to its hazardous nature. Understanding its properties and applications empowers us to use CAS 95-63-6 responsibly, contributing to a safer and more sustainable chemical industry.