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Product Code:SP8016

Product Name:OCTAMETHYLCYCLOTETRASILOXANE

Product Introduction:

Octamethylcyclotetrasiloxane (D4) is a volatile cyclic siloxane composed of alternating silicon-oxygen atoms with methyl substituents. It serves as a key monomer and intermediate in the production of polydimethylsiloxane (PDMS) and other silicone polymers. This colorless, low-viscosity liquid is widely used in sealants, lubricants, personal care products, and as a solvent carrier.

Basic Information

  • Chinese name:八甲基环四硅氧烷
  • CAS number:[556-67-2]
  • Molecular formula:C₈H₂₄O₄Si₄

Structural formula

Physical properties

  • Appearance:Colorless clear liquid

Product standard

  • GB/T 20435-2006

Technical indicators

Project Indicator
Appearance Colorless clear liquid
Purity,% ≥99.0

Characteristic advantages

  • Ring-opening polymerization activity
  • Low surface tension & hydrophobicity
  • Unique volatile characteristics
  • Good compatibility
  • Core raw material for silicone polymers

Application field

  • Personal care & cosmetics
  • Automotive & industrial cleaning
  • Rubber & composites
  • Surface treatment & material modification
  • Electronics industry & scientific research

Safe handling

  • Wear eye protection and protective gloves as required while handling the product
  • Use the product in a well ventilated area
  • Please consult our MSDS

Use storage

  • When stored in its original container below 40°C and unopened, the shelf life is 2 years. It can still be used after re-inspection
  • Store in a cool and dry place out of direct sunlight
  • Keep out of the reach of children

Packaging Information

  • Available in 25KGS drum, 200KGS drum or 1000KGS IBC