Product name: Silicone Diffusion Pump Fluids 274

Model name:NV-SiF274

Main components:Tetramethyltetraphenyl trisiloxane

Formula：

     C6H5      CH3      C6H5

        ︱         ︱         ︱

CH3—Si—〔—Si—〕n—Si—CH3

        ︱         ︱         ︱

     C6H5       CH3      C6H5     （ n＝1）

CAS number: 3982-82-9

Technique Data:

Appearances: Colorless transparent liquid

viscosity（25℃） mm²/s :36 ± 4

refractive index（25℃）:  1.550-1.560

Flash point（°C）:  ≥ 210

Freezing point（°C）:  ≤－35

Special property:

1.High vacuum degree.For high vacuums of 10-6 to 10-8 torr (untrapped) and 10-10 to  10-11 torr (trapped).

2.Oxidation Resistance .

3. Excellent resistance to explosion.

4. Rapid Cycling.

5. Low vapor pressure.

6. Good resistance to gamma radiation.

7. Long service life: Thermal and chemical stability of silicone fluids allows exceptionally long runs without deterioration or contamination.

Usage:

1.It can be used as high vacuum diffusion pump oil in the electronic, metallurgical, instrument and other industries.

2.High temperature heat carrier and transfer fluid in electronic instruments.

Storage and transportation:

1.Put in clean, dry and neutral tinplate.

2. Be stored in the warehouse which is moisture-proof and sunlight proof,the indoor temperature is allowed to be - 40 ~ 50 ℃.

3. Be transported and stored as non-dangerous goods.