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Calcium Petroleum Sulphonate TBN 300

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A high base number (300) Calcium Sulfonate. Calcium Petroleum Sulphonate TBN 300 is used with other additives to formulate supercharged diesel and gasoline engine oils. It provides base for neutralizing corrosive acids and detergency for deposit control in engines operating under high temperature. Calcium Petroleum Sulphonate TBN 300 is a highly alkaline detergent and corrosion inhibitor additive.

Calcium Petroleum Sulphonate TBN 300


Recommended for use at
By weight 0.5% - 5.0%
By volume 0.4% - 4.0%

In suitable base stocks to provide detergency and antirust performance characteristics to engine oils.


  • Detergency
  • Corrosion inhibitor in mill oils, shortterm rust preventatives, coatings and greases
  • Dispersant and corrosion inhibitor in engine oil

Physical Properties

Specific Gravity@15.6°C, ASTM D-1298 1.125
Calcium Content, Wt%, ASTM D-3712 12%
Total Base Number, mg KOH/g, ASTM D-2896 300
Viscosity @ 100°C, cSt 50

Specification Sheet

Appearance Visual Brown liquid
Sp. Gravity @ 15.6°C ASTM D 1298 1.10 1.17 1.13
Colour, Dilute ASTM D 1500 4.0 7.0 4.0
Water Content, % wt. ASTM D 95 0.5 0.1
Viscosity @ 100°C, cSt. ASTM D 445 50 150 75.5
Calcium Content, % wt. ASTM D 5185 11 13 11.3
TBN ASTM D 2896 300 310 305
Flash Point,°C (PMCC) ASTM D 93 150 205

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