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IOTA BJ1000 Phenyl Silicone Oils

IOTA BJ1000 Phenyl Silicone Oils
Product description

IOTA BJ1000 Silicone fluid is a clear, colorless, and odorless polydimethylsiloxane with a high proportion of phenyl groups.
Application
- heat transfer fluid
- pressure transfer fluid
- dielectric in capacitors and transformers
- base fluid of heat resistant lubricants
For practical purposes, the useful temperature range of IOTA BJ1000 is between -35 °C and +200 °C. However, this presupposes that heat-stressing of the fluid occurs under "chemically pure" conditions.

Even trace amounts of acids, alkalis, mineral oils, organometallic compounds, metal salts or metal oxides can seriously reduce the service life.
The flash point of the silicone fluid may be changed by heat-stressing. It is therefore particularly important in open systems to check the flash point at least once a year and more often if operating conditions demand.
Storage
The 'Best use before end' date of each batch is shown on the product label.
Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.
Product data

Typical general characteristics

Inspection Method

Value Appearance

clear, colorless  

Viscosity, dynamic at 25 °C  

900-1100 mPa.s

Refractive index (25°C)

DIN 51423

approx.1.5

Density at 25 °C

DIN 51757

approx.1.09 g/cm³

Volatility

5g/4h/250°C

< 1.0 %

Thermal conductivity at 50 °C

approx.0.14 Wm-¹K -¹

Specific heat at 25 °C

approx.1.46 Jg-¹K -¹

Coefficient of thermal expansion at 0 -180 °C

85 - 82 x 10-5 mLmL-¹K -¹

Dielectric constant at 25°C and 100 Hz

approx.2.9

Dielectric strength

approx.20 kVmm-¹

Flash point

ISO 2592

approx.280 °C

Ignition temperature (liquids)

DIN 51794

> 400 °C




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