XPT2204B Zinc Mixed 2-ethylhexanol & Secondary Butanol XPT2204B refers to Zinc Mixed 2-ethylhexanol & Secondary Butanol Dithiophosphate, which is with outstanding anti-oxidation and anti-wear performance. It is able to effectively inhibit oil oxidation, bearing corrosion and cam tappet wear when added. It is a ZDDP with comprehensive performance. This product is mainly used in internal combustion engine applications, as well as industrial applications like gear oil and hydraulic oil. The recommended treat rate is 0.5%-2.5% (m%). Item Quality indicator Appearance Light yellow to amber transparent liquid Color number 2.0 Density (20C)  kg/m3 1070-1150 Kinematic viscosity (100C),  mm2/s 6.0 ~ 4.0 Flash point (open), C, 160 Sulphur content,  % (m/m) 14.5 ~ 18.0 Phosphorus content,  % (m/m) 7.7 ~-8.3 Zinc content,  % (m/m) 8.4 ~ 9.2 PH value, 5.5 Moisture,  % (m/m), 0.03 Mechanical admixture, % (m/m), 0.07