Silicone 705 – fill fluid
- 英文名稱：DOWSIL SH 705 Diffusion Pump Fluid
- 發布日期： 2023-04-10
- 更新日期： 2026-03-03
產品詳請
| 貨號 |
DC705
|
| 品牌 |
DOW
|
| 是否危險化學品 |
否
|
| 型號 |
DC705
|
| 產品等級 |
一級品
|
| CAS編號 |
|
| 純度 |
99%
|
| 別名 |
Silicone 705 – fill fluid
|
| 密度 |
0.98g/cm3
|
| 產地/廠商 |
DOWSIL
|
Silicone 705 is a specialty silicone fill fluid intended for use in applications with higher operating
temperatures beyond the maximum limit of Silicone 704. Silicone 705 has a higher molecular
weight than Silicone 704, which extends seal operating temperatures. Its primary limitation is
high viscosity, so heat tracing of capillaries or use of the Rosemount Thermal Ranger Expander is
often needed for acceptable response time. The 0.03-in. (0.7 mm) ID capillary is not allowed for
Silicone 705 because of its higher viscosity.
For applications below 14.7 psia (1 bar-a) use Silicone 705 for Vacuum Applications found in
Section 1.7.
類型 單一組分硅材料
物理形式 流體
特性 熱穩定性、低水汽壓力和低回流率、抗氧化、水解和輻射
主要用途 用于制造超高和超潔凈真空
特性
DOW CORNING 705的性能參數
極限真空度 托 無阱 10-9-10-10
有阱 到10-11
分子類型 Penta phenyltri-methyltrisiloxane
分子重量 546
蒸汽壓力方程式 log10P=A-B/T(P:蒸汽壓力,托;T:*溫度,°K) A=12.31B=6490
利益
