petroleum additives with favorable anti-oxidation and anti-corrosion performance and anti-wear and extreme pressure properties.

T203 Zinc Dioctyl Primary Alkyl Dithiophosphate  

Product brief  

T203 is Zinc Dioctyl Primary Alkyl Dithiophosphate. This product features excellent oxidation resistance, corrosion resistance, and anti-wear and extreme pressure properties, particularly high thermal stability, and favorable oil solubility, additive compatibility, and resistance to emulsification. It can be compounded with the T105/T106 detergents and the T154/T155 dispersants to be applied in high-grade diesel engine oils, or compounded with other additives to apply in anti-wear hydraulic oils. The percentage in usage is 0.5%-3.0% when adding this product into oil.

Technical specifications

 

Table 1   T203 product quality indicators and test methods

Item	Quality indicator		Test method
	Class-A quality	Acceptable quality
Appearance	Light yellow to amber transparent liquid		Visual test
Color number, #, no more than	2.0	2.5	GB/T 6540 or ASTM D -1500
Density (20°C)     kg/m3	1060-1150		GB/T2540 or ASTM D-4052
Kinematic viscosity (100°C),   mm2/s	Report		GB/T265 or ASTM D-445
Flash point (open), °C, no less than	180		GB/T3536 or ASTM D-92
Sulphur content,  % (m/m)	14.0-18.0	12.0-18.0	ASTM D-4951
Phosphorus content,  % (m/m)	7.5-8.8	6.5-8.8
Zinc content,  % (m/m)	9.0-10.5	8.0-10.5
PH value, no less than	5.8	5.3	SH/T 0394-1996, annex A
Moisture,  % (m/m), no more than	0.03	0.09	GB/T260 or ASTM D-95
Mechanical admixture, % (m/m), no more than	0.07		GB/T 511 or AM-S90-009

Package, storage and shipment  

The product is packed with iron barrels, with a net weight of 200Kg/barrel, suitable for all means of transport. For short-term storage and transportation, the temperature of the product shall not surpass 75°C; and for long-term storage it shall not surpass 45°C. The product is offered with a guarantee period of two years. This product is non-flammable, non-explosive, and non-corrosive, thus needs no special protection.

Petroleum Additives Zinc Dioctyl Primary Alkyl Dithiophosphate T203