RF2203 Zinc Dioctyl Primary Alkyl Dithiophosphate
Product Introduction:

RF2203 refers to Zinc Dioctyl Primary Alkyl Dithiophosphate. This product features excellent oxidation and corrosion resistance, anti-wear, extreme pressure properties, and thermal stability in particular, and it offers favorable oil solubility, additive compatibility, and Demulsification as well. It is used in the formulation of premium diesel engine oils with the combination of sulphonate detergent and ashless dispersant, and in anti-wear hydraulic oils when combining with other additive packages. The recommended treat rate is 0.5%-3.0% (m%).

Product Technical Specification:



Test Method


Light yellow to amber transparent liquid

Visual Inspection

Density (20℃), kg/m3


SH/T0604, ASTM D4052

Kinematic Viscosity (100℃), mm2/s


GB/T265, ASTM D445

Flash Point (COC), ℃


GB/T3536, ASTM D92

pH value


SH/T0394-1996, Annex A

Zn Content, m%


NB/SH/T0824, ASTM D4951

P Content, m%


NB/SH/T0824, ASTM D4951

S Content, m%


SH/T0303, ASTM D1552

Color, number


GB/T6540, ASTM D1500

Water Content, m%


GB/T260, ASTM D95

Mechanical Impurities, m%



Packaging Storage and Transportation:

The product is packed in iron drums with a net weight of 200kg, applicable to various modes of transportation.

The maximum storage and transportation temperature shall not exceed 75℃ in short term, and shall not exceed 45℃ in long term. The shelf life is 2 years.

This product is not flammable, explosive and corrosive, with no special protection required. In case of accidental contact with skin, wash it off thoroughly with water and detergents.