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What is pure benzene (CAS 71-43-2)?

Sep 03, 2025Leave a message

What is pure benzene (CAS 71-43-2)?

Benzene, a molecule with the chemical structure of C6H6, has a molar mass of just over 78 grams/mole. At room temperature, it tends to exist in a liquid state. It is colorless and has a very distinctive gasoline-like odor. Pure benzene is soluble in water and has a melting point of 5.33 degrees Celsius. It also has a boiling point of 80.1 degrees Celsius. Benzene CAS 71-43-2 is used to make plastics, resins, synthetic fibers, rubber lubricants, dyes, detergents, drugs and pesticides.

 

CAS No.: 71-43-2
EC No.: 200-753-7
Linear Formula: C₆H₆l
Molecular Weight: 78.11
Appearance: Transparent Liquid
Melting Point: 5.5 °C (lit.)
Density: 0.874 g/mL at 25 °C (lit.)
Chemical Structure:  cas-71-43-2.jpg

 

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Benzene C6H6 Organic Chemical CAS 71-43-2

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What is benzene CAS 71-43-2 used for?

The physicochemical properties of benzene CAS 71-43-2 enable its application in numerous manufacturing processes. Globally, this compound is used to produce dyes, fibers, and plastics. Its applications also include:

 

  • Phenol (a component of fungicides and herbicides)
  • Synthetic resins
  • Plasticizers
  • paints
  • Aniline (an essential raw material for dye and rocket propellant production)
  • Pesticides
  • Household chemicals (cleaning agents and detergents)

 

The use of benzene is extremely widespread. It should be noted that due to its hazards to human health, the use of benzene in household chemicals is gradually decreasing. This substance was once used extensively as a solvent and engine fuel! Today, we no longer use such substances in detergents or engines; they have been replaced by compounds with lower toxicity.

 

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