Antifrogen® KF

Low-Viscosity, Low-Temperature brine for the food sector, antifreeze and corrosion-inhibiting medium

Änderungsdatum :
Mai 12, 2018

Antifrogen KF is a non-toxic clear liquid, based on an aqueous formate solution which is used as a low-temperature brine down to -50 °C in industrial and food refrigeration systems. The brine adjusted for reliable protection against freezing is inhibited with non-toxic corrosion inhibitors and is nitrite, amine and borate-free.

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Antifrogen

Antifrogen

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  • Vorteile

    Antifrogen KF fulfills a dual function as a refrigerating medium. It ensures that the aqueous solution remains liquid at the required brine temperature and protects the metals in the system from corrosion.
    The freezing point of the undiluted brine is about -53 °C.
  • MSDS and TDS

    To prevent precipitation, only fully dionized (distilled) water may be used for diluting Antifrogen KF to give the desired protection against freezing (at least -10 °C).
    All in the table mentioned materials are protected against corrosion in dilution up to 51 % V/V (= -20 °C). In further dilution with water up to 31 % V/V (= -10 °C) it is recommended to use stainless steel or copper instead of ferrous metals.

    Antifrogen KF has neither a flash point nor a fire point.
    The results of ecotoxicological studies demonstrate the good biodegradability and toxicological safety of Antifrogen KF.
    Since soft solder is not resistant to Antifrogen KF, we recommend the use of hard solder joints in assembling systems. Galvanized lines must not be used because zinc is dissolved.
    Sicherheitsdatenblatt

  • Technical Data

    Density at 20°C (DIN 51757)    g/cm³ 1.343
    Refractive index nD at 20°C (DIN 51423, Part 2)     1.387
    pH-Value undiluted (DIN 51369)     11
    Boiling point at 1013mbar   °C +115
    Freezing point (ASTM D 1177)   °C approx. -60
    Pour point (DIN 51597)   °C below -60
    Kinematic viscosity (DIN 51562) 20°C
    -40°C
    mm2/s 2-3
    approx. 25
    Specific heat 20°C
    -40°C
    kJ/kgK approx. 2.6
    approx. 2.5
    Thermal conductivity 20°C
    -40°C
    W/mK approx. 0.46
    approx. 0.39
    Specific electrical conductivity 20°C mS/cm 220-230
  • Application

    Antifrogen KF fulfills a dual function as a refrigerating medium. It ensures that the aqueous solution remains liquid at the required brine temperature and protects the metals in the system from corrosion.
    The freezing point of the undiluted brine is about -53 °C, and the brine has a strong tendency to supercool. Supersaturated solutions can however be induced to crystallize out by inoculation.
    The values shown in the „freezing point“ curve were obtained by this means, and so they provide a reliable guide to the lowest possible temperature in the refrigeration system. Experience indicates that the brine temperatures obtainable in practice in this way are 8-4 °C higher.
    To prevent precipitation, only fully dionized (distilled) water may be used for diluting Antifrogen KF.
    All in the table mentioned materials are protected against corrosion in dilution up to 51 % V/V (= -20 °C). In further dilution with water up to 31 % V/V (= -10 °C) it is recommended to use stainless steel or copper instead of ferrous metals.

    It must not be mixed with other brines, especially with chloride brines but also with glycol brines (e.g. Antifrogen N or L).

  • Handling

    SERVICE & MONITORING
    The Antifrogen KF concentration should be checked once a year. It is also advisable to check the degree of protection against freezing when Antifrogen KF or water has been replenished. A sample should also be taken for checking the serviceability and corrosion inhibition.

    DISPATCH & STORAGE
    Antifrogen KF is delivered in road tankers, rail tank wagons and non-returnable drums (280 kg). The product has good storage stability.
    Remarks: Very slight turbidity with brown precipitations can occasionally be observed dependent on the quality of raw materials. However, this has no negative effect on the product performance.

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Disclaimer:
This information corresponds to the present state of our knowledge and is intended as a general description of our products and their possible applications. Clariant makes no warranties, express or implied, as to the information’s accuracy, adequacy, sufficiency or freedom from defect and assumes no liability in connection with any use of this information. Any user of this product is responsible for determining the suitability of Clariant’s products for its particular application.<br />
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* Nothing included in this information waives any of Clariant’s General Terms and Conditions of Sale, which control unless it agrees otherwise in writing. Any existing intellectual/industrial property rights must be observed. Due to possible changes in our products and applicable national and international regulations and laws, the status of our products could change. Material Safety Data Sheets providing safety precautions, that should be observed when handling or storing Clariant products, are available upon request and are provided in compliance with applicable law. You should obtain and review the applicable Material Safety Data Sheet information before handling any of these products. For additional information, please contact Clariant.<br />
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* For sales to customers located within the United States and Canada the following applies in addition: No express or implied warranty is made of the merchantability, suitability, fitness for a particular purpose or otherwise of any product or service.<br />
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© Trademark of Clariant registered in many countries.<br />
® 2013 Clariant International Ltd 

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