Octamethylcyclotetrasiloxane HC-802 CAS 556-67-2

Chemical Name:Octamethylcyclotetrasiloxane


CAS No.:556-67-2


Product Categories:Organic Chemistry


Molecular Formula:C8H24O4Si4


Formula Weight:318.25


Appearance:Colorless transparent liquid


Packaging Method:25KG/200L Plastic Drum


Type Of Transportation:By Air/By Sea/By Train/By Express


Sample:Available


Octamethylcyclotetrasiloxane HC-802 CAS 556-67-2

Product Description Of

Octamethylcyclotetrasiloxane HC-802 CAS 556-67-2
  • Boiling Point: 175 °C
  • Melting Point: 17.5 °C
  • Refractive Index: 1.396~1.398
  • Viscosity: Low viscosity, excellent fluidity
  • Solubility: Insoluble in water, miscible with hydrocarbon solvents and silicone oils
  • Stability: Good thermal stability, chemically inert, not easy to oxidize
  • Volatility: Moderate volatility, easy to spread and volatilize quickly
  • Odor: Slight characteristic odor, nearly odorless after dilution


Chemical Properties Of

Octamethylcyclotetrasiloxane HC-802 CAS 556-67-2
chemical nameOctamethylcyclotetrasiloxane
abbreviation
colourcolorless clear liquid
Purity (%)99%
Density (25℃)1.03-1.10
Refractive index (25℃)1.4100-1.4200



Safety Information Of

Octamethylcyclotetrasiloxane HC-802 CAS 556-67-2
dangerous markT+
Hazard Category code21/22-26-34-42
safety instructions23-26-28-36/37/39-45
Dangerous goods transportation numberUN 3390 6.1/PG 1
WGK Germany3
RTECS
VV6691000



Product Application Of

Octamethylcyclotetrasiloxane HC-802 CAS 556-67-2

Primary raw material for synthesis of various linear silicone oils, silicone rubber and silicone resin.

Key monomer for producing high molecular weight polydimethylsiloxane.

Widely used in cosmetics and personal care products as smoothness enhancer.

Used as carrier solvent, leveling agent and slip agent in daily chemical formulas.

Applied in textile softening, waterproof finishing and fabric smoothing treatment.

Used as lubricant, release agent and insulating agent in electronic and electrical industry.

Suitable for compounding silicone defoamers, paint additives and plastic modifiers.

Used in leather finishing agent to improve surface smoothness and soft touch.

Applied in high-temperature resistant additives and chemical intermediates synthesis.

Serve as diluent and viscosity regulator in silicone auxiliary formulas.


Packaging Method Of

Octamethylcyclotetrasiloxane HC-802 CAS 556-67-2
  • Galvanized-iron-drum
  • Galvanized-iron-drum-2
  • Galvanized-iron-drum-3
  • Galvanized-iron-drum-4

Factory Show

  • Galvanized-iron-drum-4
  • 34
  • 3m-4
  • 2-4