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ANTIFROGEN N

ANTIFROGEN N

Antifrogen® N is a liquid, tinted pale yellow, for use as a heat transfer medium in closed hot water heating systems, heat pumps and as cooling brine in industrial refrigeration equipment. Antifrogen® N is not suitable for the use in food or pharmaceutical applications. Alternatively, the use of Antifrogen® L is recommended. The product is inhibited without the use of nitrites-, amines-, borates-, silicates- and phosphates. The optimization of the corrosion inhibition system was performed without the use of CMR-substances (cancerogenic, mutagenic, reprotoxic).

 
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Certification and Approvals

SAFETY & HANDLING

Flash point (DIN51758)  °C   119  
Ignition temperature (DIN 51794)  °C 410
Temperature class (DIN/VDE 0165)    T2 

Antifrogen® N was developed for use as a heat transfer and refrigerating medium. Its antifreeze action is based on monoethylene glycol, which with its high boiling point of about 198 °C prevents loss by evaporation.
The frost resistance of the mixture does not change even after many years use, provided the Antifrogen® N concentration remains constant. Furthermore phase separation of Antifrogen® N/water mixtures does not occur.

  1. Hot water heating systems
  2. Heat pump systems
  3. Heat recovery systems
  4. Refrigeration circuits
  5. Gravity systems

Antifrogen N was developed for use as a heat transfer and refrigerating medium. Its antifreeze action is based on monoethylene glycol, which with its high boiling point of about 198 °C prevents loss by evaporation.

The lethal dose for humans can be assumed to be 100 ml taken at once. In the majority of reported cases of poisoning cerebral damage and pulmonary edemas in particular have been observed besides renal damage. 
Ethylene glycol, the product on which Antifrogen® N is based, is classified in water hazard class WGK 1 (slightly water-polluting) according to the list of water-polluting substances (VwVwS from 17.05.1999). This also applies to mixtures of Antifrogen® N with water. 
In concentrations up to 1000 mg/l, Antifrogen® N/water mixtures show no acute harmful effects on fish and bacteria. They are readily biodegradable.

Density at 20°C (DIN 51757) g/cm⊃3; 1.1
Refractive index at 20°C (DIN 51423, Part 2) '' 1.434
pH-Value undiluted (DIN 51369) '' approx 8.5   
Reserve alcalinity (ASTIM D 1121) ml c (HCI) 0.1m   at least 4
Boiling point at 1013mbar (ASTM D 1120) °C Approx 166
Pour point (DIN 51597) °C Approx -32
Kinematic viscosity (DIN 51562) mm⊃;2;/s Approx 20
Specific heat KJ/Kg *K Approx 2.4
Thermal conductivity W/mK Approx .29