Chemical Name: Octamethylcyclotetrasiloxane
CAS No.:556-67-2
Molecular Formula: C8H24O4Si4
Molecular Weight: 296.62
Appearance: Colorless Clear Liquid
Octamethylcyclotetrasiloxane CAS 556-67-2
Description
Octamethylcyclotetrasiloxane Details
Chemical Name: Octamethylcyclotetrasiloxane
Other name: Cyclomethicone 4
CAS No.: 556-67-2
Molecular Formula: C8H24O4Si4
Molecular Weight:296.62
Molecular Structure:
Appearance: Colorless Clear Liquid
Typical Properties
| Appearance | Colorless Clear Liquid |
| Purity | 99.999999% |
| Density | 0.956 g/mL at 25 °C(lit.) |
| M.P. | 17-18 °C(lit.) |
| B.P. | 175-176 °C(lit.) |
| Refractive Index | n20/D 1.396(lit.) |
| Flash Point | 140 °F |
Octamethylcyclotetrasiloxane Usage
1. As a high-purity ALD/CVD precursor product, it is one of the core source materials of the entire electronic industry system.
2. It is widely used in many aspects of electronic device manufacturing such as computer chips, solar cells, mobile communications, satellite navigation, and spacecraft.
Packaging and Shipping
Packing: bottle or drum
Delivery: within 5-7 working days
Octamethylcyclotetrasiloxane Storage
Stored in a cool dry place(2-8° C)out of direct sunlight.