CSP Heat Transfer Fluid

Baysolar can provide thermo oil with excellent quality, if you need some sample for testing, please contact us.

Operation Temperature:

  • Liquid phase: 12-400°C
  • Vapor phase: 257-400°C
  • Maximum Film Temperature: 427°C
  • Crystallizing Point: 12°C

Typical Properties:

  • Kinematic Viscosity
    • @ 40 °C: 2.48 mm2/s
    • @ 100 °C: 0.99 mm2/s
  • Flash Point: 124 °C
  • Fire Point: 129 °C 
  • Auto-ignition Temperature: 621 °C
  • Normal Boiling Point: 257 °C
  • Heat of Fusion: 23.25 kcal/ kg
  • Pseudocritical Temperature: 499 °C
  • Pseudocritical Pressure: 480.3 psia (33.1 bar)
  • Volume Contraction Upon Freezing: 6.3 %
  • Surface Tension in Air @ 25 °C: 36.6 dyn/cm
  • Volume Expansion Upon Melting: 6.66 % 
  • Specific Resistivity @ 20 °C: 6.4 x 1011ohm-cm
  • Moisture Content: 300 ppm
  • Average Molecular Weight: 166
  • Density @ 25 °C: 1066 kg/m2
  • Specific Gravity @ 25 °C: 1.044 – 1.066

Lei Ming
CSP Sales Director
l.ming@baysolar.ag