Product overview
Octamethylcyclotetrasiloxane (D4) is a cyclic siloxane used primarily as an intermediate for silicone polymers, elastomers, fluids and resins. Buyers should define cyclic purity, water, trace metals and residual D3/D5 limits and verify destination-market restrictions before supply.
Function & Usage
- Applications
Provides functional performance in the following evaluated uses: Silicone polymer and elastomer manufacturing, Silicone resin and fluid intermediates, Specialty formulation carrier subject to destination-market restrictions, Validated electronic-process applications by high-purity grade. Final suitability depends on grade, formulation testing and destination-market requirements.
Product information
- Primary category:
- Fine Chemicals, Plastic & Rubber Additives, Electronics & Electrical Materials
- Subcategory:
- Cyclic Siloxanes & Silicone Intermediates
- CAS No.:
- 556-67-2
- Form:
- Clear colorless volatile liquid
- Content / Grade:
- Silicone-intermediate / industrial grade; assay ≥99.0% or ≥99.5%; water and D3/D5 cyclic-siloxane limits by grade
- Applications:
- Silicone polymer and elastomer manufacturing, Silicone resin and fluid intermediates, Specialty formulation carrier subject to destination-market restrictions, Validated electronic-process applications by high-purity grade
- Hazard / Transport:
- Suspected of damaging fertility and very toxic to aquatic life with long-lasting effects. It is a volatile combustible liquid; environmental restrictions and transport status must be confirmed for the exact grade and destination market.
- Storage:
- Keep tightly closed in a cool, dry and well-ventilated flammable-material area. Protect from heat, sparks, direct sunlight, moisture and strong oxidizing agents; ground and bond containers during transfer.