SCHULTZ®S759
SCHULTZ®S759
Temperature-25℃~300℃
SCHULTZ® S759 is an exceptional synthetic heat transfer fluid characterized by ultra-low viscosity, low pour point, outstanding thermal stability, and oxidation resistance. It can operate stably within a wide temperature range of -50°C to 320°C for extended periods. SCHULTZ® S759 is a comparable alternative to THERMINOL® 59 and can be mixed in any proportion.
Product temperature

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Product Features
Superior Thermal Stability & Anti-Coking Performance‌
SCHULTZ® S759 exhibits excellent thermal stability, strong oxidation resistance, and effectively prevents coke deposition and solid particle formation.
01
‌Exceptional Low-Temperature Performance
SCHULTZ® S759 features an extremely low pour point (-68°C) and crystallization point (<-50°C), ensuring easy system startup even in frigid environments without additional heating assistance.
02
‌Outstanding Pumpability
At -40°C, SCHULTZ® S759 maintains a low viscosity of only 301 mm²/s, while at 300°C, its viscosity remains significantly lower (0.332 mm²/s) compared to other heat transfer fluids, making it suitable for both heating and cooling applications.
03
‌Non-Corrosive‌
SCHULTZ® S759 is non-corrosive to ferrous and non-ferrous metals commonly used in industrial equipment.
04
Typical data
Appearancelight yellow  transparent liquid
Flash Point(Closed Cup) / ℃134
Flash Point (open Cup) / ℃146
Autoignition Temperature / ℃406
Pour Point / ℃-68
Normal Boiling Point / ℃289
Acid Number(KOH) / (mg/g)0.01
Chlorine / (mg/kg)1.78
Moisture Content / (mg/kg)150
Molecular Weight (average)207
Coefficient of Thermal Expansion (200℃) / ℃0.000946
Minimum liquid temperatures for fully developed turbulent ffow (NRe > 10,000) 
10 ft/s, 1-in. tube (3.048 m/s, 2.54-cm tube) /  ℃17
20 ft/s, 1-in. tube (6.096 m/s, 2.54-cm tube) /  ℃0
Minimum  liquid   temperatures  for  transitional   region  ffow (NRe > 2,000) 
10 ft/s, 1-in. tube (3.048 m/s, 2.54-cm tube) /  ℃-16
20 ft/s, 1-in. tube (6.096 m/s, 2.54-cm tube) /  ℃-24
Heat of vaporization at maximum use temperature / kJ/kg226.9
Pumpability / ℃       2000 mm2/s-50
Pumpability / ℃        300 mm2/s-40
Pseudocritical temperature/ ℃514
Pseudocritical pressure/bar22.3
Pseudocritical density / kg/m3287
Copper corrosion (ASTM D-130)<1a
Dielectric constant @ 23°C (ASTM D-924)2.52
Optimum Use Range / ℃-50~320
Maximum Bulk Temperature / ℃320
Maximum Film Temperature / ℃345

Note: The above data are based upon test samples in the laboratory and not guaranteed for all products. For full specifications of SCHULTZ®S759 , please contact our sales dept.

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