Antioxidant Liquid For Gasoline

RXSOL Antioxidant Liquid  is a versatile antioxidant that can be used in both gasoline and biodiesel. It inhibits gum formation in FCC gasoline and catalyzes inhibitor-sweetening reactions in sour gasolines. It is approved for both civilian and military gasolines. Furthermore, it helps inhibit oxidation and loss of stability in a wide variety of biodiesel feedstocks.

RXSOL Antioxidant Liquid  is most effective in gasoline having a low level of olefins, i.e. below about 10 percent by volume. The most important  RXSOL Antioxidant Liquid having good antioxidant activity in gasoline have sterically hindered hydroxyl groups due to the presence of alkyl groups in ditert-butylphenol, 2,4-dimethyl-9-6-tert-butylphenol and 2,6-ditert-butyl phenol. These mixtures have the advantage that they have lower freezing points than the pure materials and can be more cost effective.

The correct dosage of the RXSOL Antioxidant Liquid   has to be assessed and fixed after testing in the laboratory with the gasoline samples of the concerned refinery. However, to contain the potential gum within the specified limits of 50 g / m3 Max the following dosage levels are suggested.

Determination of potential gum in Motor Gasolines as per applicable ASTM D525 standards

   Potential gum range in Gasoline                               Suggested dosage of additive
 ( Blank samples without additive)  g / m3

        51 – 120                                                                             15 ppm
      121 – 180                                                                             20 ppm
      181 – 300                                                                             30 ppm