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The Thermal Bath Fluids

The Thermal Bath Fluids
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The Thermal Bath Fluids

Product catalog summary
General Information
JULABO Thermal Bath Fluids are designed for optimal performance with JULABO units, being chemically inert and stable for at least 12 months. They require regular inspection and replacement every 2-3 months when used near temperature limits. Silicone-based fluids should not be used with silicone hoses.
Types of Bath Fluids
  • Silicone-Based Fluids: Include Thermal HS, HY, H5, H10, and H20S, known for high stability and good heat conductivity but unsuitable for silicone hoses.
  • Water-Glycol Based Fluids: Thermal G and HL30 offer excellent thermal properties and anti-freeze protection, requiring regular checks of the water-to-glycol ratio.
Specific Bath Fluids
  • Thermal G: Suitable for -30°C to +80°C, with high stability and low viscosity.
  • Thermal M: Alcohol ethoxylate-based, suitable for +70°C to +170°C.
  • Thermal HS: Silicone-based, suitable for +50°C to +250°C.
  • Thermal HY: Silicone-based, suitable for -80°C to +55°C.
  • Thermal H5: Silicone-based, suitable for -50°C to +105°C.
  • Thermal H10: Silicone-based, suitable for -20°C to +180°C.
  • Thermal H20S: Silicone-based, suitable for 0°C to +220°C.
  • Thermal HL30: Water-glycol based, suitable for -30°C to +90°C.
Recommendations
Choosing the right bath fluid is crucial for optimal temperature control. Consider the working temperature range and consult JULABO experts if needed. Regularly check the mixing ratios for water-glycol fluids.
Specifications and Properties
  • Thermal HL30: Water-glycol mixture with a 50:50 ratio, suitable for -30°C to +90°C.
  • Thermal HL60: Silicone-based, suitable for -60°C to +250°C.
  • Thermal HL90: Silicone-based, suitable for -90°C to +200°C.
  • Thermal H250S: Silicone-based, suitable for +20°C to +250°C.
  • Thermal H350: Hydrocarbon-based, suitable for +50°C to +350°C.
  • AQUA STABIL: Water disinfectant for open baths.
Safety and Usage Recommendations
  • Regularly check the mixing ratio of water to glycol in Thermal HL30.
  • Observe safety data sheets for handling instructions.
  • Use appropriate tubing for silicone-based fluids.
  • For Thermal H350, reduce heater capacity during initial heating.
Advantages
  • High stability, low viscosity, good heat conductivity, and long fluid life.
  • Wide temperature ranges for different JULABO units.
Additional Information
  • Terminology explanations for specific heat capacity, viscosity, and other terms.
  • JULABO offers a range of temperature control solutions and global support.
See more

Catalog excerpts

The Thermal Bath Fluids-1

The Temperature Control Company

 Open the catalog to page 1
The Thermal Bath Fluids-2

General information on JULABO Bath Fluids JULABO Thermal Bath Fluids are carefully chosen and long-term tested media. They are highly suitable for temperature applications in JULABO units and guarantee safe and reliable operation. JULABO Thermal Bath Fluids based on silicone... ...are chemically inert substances which do not affect metals like iron, copper, zinc, aluminum, chrome or nickel. Compared to other fluids, JULABO Thermal fluids have an extraordinarily low electrical conductivity. When properly stored, the fluid will keep for at least 12 months as they are not susceptible to climatic influences....

 Open the catalog to page 2
The Thermal Bath Fluids-3

Content Which Bath Fluid do I need? The choice of the suitable bath fluid is crucial for optimal temperature control results. The most important criteria for your reliable choice is the working temperature range in which you operate your application. All other properties of the JULABO Thermal Bath Fluids like viscosity, oxidation behavior and heat conductivity are ideally matched for their use with JULABO temperature control instruments. If you need assistance when choosing the bath fluid, a JULABO expert will be glad to support you. Bath fluid Working temperature range -100 °C Open Systems Closed...

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The Thermal Bath Fluids-4

The Temperature Control Company Bath fluid Thermal G JULABO Thermal G is a bath fluid based on water-glycol and features excellent thermal properties. In addition, JULABO Thermal G supplies anti-freeze protection and thus it is most suitable for applications below the freezing point of water. Check the mixing ratio! When using Thermal G for long time periods, the mixing ratio of water to glycol must be checked regularly (50:50). In case of increased glycol content, the Thermal G may become flammable. Conversely, increased water content may cause the Thermal G to freeze at low temperatures. Please...

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The Thermal Bath Fluids-5

Specific heat capacity kJ /(kg × K) 3.7 3.6 3.5 3.4 3.3 3.2 measured range calculated range

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The Thermal Bath Fluids-6

The Temperature Control Company Bath fluid Thermal M JULABO Thermal M is a bath fluid based on alcohol ethoxylate. Please note: Usage of the fluid below the lowest mentioned working temperature may result in temperature fluctuation or high temperature alarm due to hot fluid areas around the heater. Recommendation: Reduce the heater capacity during heating up until the lowest mentioned working temperature is reached. Please observe the information in our safety data sheet. You can download the safety data sheet at www.julabo.com or request it from JULABO. Advantages: • High stability • Low viscosity...

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The Thermal Bath Fluids-7

Specific heat capacity kJ /(kg x K) +300 °C | measured range calculated range

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The Thermal Bath Fluids-8

Bath fluid Thermal HS JULABO Thermal HS is a bath fluid based on silicone. Please note: Usage of the fluid below the lowest mentioned working temperature may result in temperature fluctuation or high temperature alarm due to hot fluid areas around the heater. Recommendation: Reduce the heater capacity during heating up until the lowest mentioned working temperature is reached. Viscosity (kinematic at 20 °C) mm2/s Do not use with silicone hoses! Silicone-based bath fluids can swell and dissolve silicone hoses. Therefore use JULABO metal tubing or JULABO Viton tubing or JULABO PTFE tubing for the temperature...

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The Thermal Bath Fluids-9

Specific heat capacity kJ /(kg × K) 1.6 1.2 0.8 measured range

 Open the catalog to page 9
The Thermal Bath Fluids-10

The Temperature Control Company Bath fluid Thermal HY JULABO Thermal HY is a bath fluid based on silicone. Do not use with silicone hoses! Silicone-based bath fluids can swell and dissolve silicone hoses. Therefore use JULABO metal tubing or JULABO Viton tubing or JULABO PTFE tubing for the temperature control of external systems. Please observe the information in our safety data sheet. You can download the safety data sheet at www.julabo.com or request it from JULABO. Property ■. 'o,Va I u e Working temperature °C -80 ... +55 Advantages: • High stability • Good heat conductivity • Minimal odor...

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The Thermal Bath Fluids-11

Specific heat capacity kJ /(kg × K) measured range calculated range

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The Thermal Bath Fluids-12

Bath fluid Thermal H5 JULABO Thermal H5 is a bath fluid based on silicone. Do not use with silicone hoses! Silicone-based bath fluids can swell and dissolve silicone hoses. Therefore use JULABO metal tubing or JULABO Viton tubing or JULABO PTFE tubing for the temperature control of external systems. • High stability Thermal expansion coefficient [g/(ml × K)] Please observe the information in our safety data sheet. You can download the safety data sheet at www.julabo.com or request it from JULABO. • Low viscosity • Good heat conductivity Specific volume resistivity [Ohm × cm] • Minimum odor • Long...

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The Thermal Bath Fluids-13

Viscosity Specific heat capacity kJ /(kg x K) 1.8 1.6 1.4 1.2 1 | measured range calculated range

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The Thermal Bath Fluids-14

The Temperature Control Company JULABO Thermal H10 is a bath fluid based on silicone. Extended temperature range: Thermal H10 can be used within the temperature range from -40°C to +180°C with circulators of the TopTech and HighTech series as well as CF31 and CF41. Property ■. i,Va I u e Working temperature °C (-40) -20 ... +180 Do not use with silicone hoses! Silicone-based bath fluids can swell and dissolve silicone hoses. Therefore use JULABO metal tubing or JULABO Viton tubing or JULABO PTFE tubing for the temperature control of external systems. Please observe the information in our safety...

 Open the catalog to page 14
The Thermal Bath Fluids-15

Physical properties of Thermal H10 Density g/cm3 1 0.9 Specific heat capacity kJ /(kg × K) 1.6 1.2 0.8 0.4 measured range 0 -50

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The Thermal Bath Fluids-16

The Temperature Control Company JULABO Thermal H20S is a bath fluid based on silicone. Do not use with silicone hoses! Silicone-based bath fluids can swell and dissolve silicone hoses. Therefore use JULABO metal tubing or JULABO Viton tubing or JULABO PTFE tubing for the temperature control of external systems. Please observe the information in our safety data sheet. You can download the safety data sheet at www.julabo.com or request it from JULABO. Property ^ Value Working temperature °C 0...+220 Advantages: • With additional stabilizer • Good heat conductivity • Minimum odor • Long fluid life...

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