ACI · Advancing Chemistry Inc.
CT-COOL Immersion Cooling Fluid

Single-phase immersion cooling fluid for data centers: food-grade purity, PFAS-free and low volatility, from our partner ACI (Advancing Chemistry Inc.).
CT-COOL immersion cooling fluid cools servers and other electrical equipment by transferring heat away from them far more effectively than air. Compared to energy-intensive air cooling, it reduces overall power consumption and energy costs, and protects equipment from overheating and failure.
Server performance: conducts heat better than air to remove the excess heat generated by equipment.
Reliability: helps keep equipment running smoothly with fewer breakdown interruptions.
Reduced energy usage: effective heat transfer lowers energy costs.
Safety: food-grade purity and PFAS-free (no intentionally added fluorocarbons), with low volatility and no contribution to global warming.
Typical properties
| Thermal conductivity @ 50 °C | 0.1213 W/m·K (ASTM D7896) |
|---|---|
| Specific heat @ 50 °C | 1935 J/kg·K (ASTM E1269) |
| Dielectric constant, 40 GHz, 70 °C | 2.14 (split cylinder resonator) |
| Loss tangent, 40 GHz, 70 °C | 0.00053 (split cylinder resonator) |
| Dielectric strength (1 mm gap) | 20.8 kV (ASTM D1816) |
| Volume resistivity @ 60 °C | 61,000 GΩ·m (ASTM D1169) |
| Volumetric expansion | 0.00066 1/°C (ASTM D1903) |
| FOM1 @ 25 °C | 33 (OCP) |
| FOM1 @ 50 °C | 41 (OCP) |
| Sulfur | 0.24 ppm (ASTM D5453) |
| Flash point (closed cup) | 187 °C (ASTM D93) |
| Autoignition point | 320 °C (ASTM E659) |
| Fire point | 211 °C (ASTM D92) |
| Pour point | -29 °C (ASTM D97) |
| Acid number | 0.01 mg KOH/g (ASTM D664) |
| Kinematic viscosity @ 40 °C | 12.1 cSt (ASTM D7042) |
| Kinematic viscosity @ 100 °C | 3.0 cSt (ASTM D7042) |
| Density @ 50 °C | 813 kg/m³ (ASTM D4052) |
| Vapor pressure @ 70 °C | <0.13 mbar (ASTM D2879) |
| Color, Saybolt | 30 (ASTM D156) |
| FDA food contact | Pass, 21 CFR 178.3620 Direct (a) |
Typical values, not specifications. Full datasheet (PDF)

