Overbased Calcium Sulfonate


Calcinate® OTS is a 300 TBN first intent overbased calcium sulfonate. This product is a high quality sulfonate designed to be a component in metal working formulations providing the beneficial effects of alkalinity for neutralizing acid and superior demulsibility for rust inhibition. It also directly protects the metal surface from corrosion. The calcium to sulfonate ratio is optimized for good oil solubility and compatibility with other formulating components. Calcinate® OTS is compatible with most mineral base oils, white oils, and synthetic base stocks.


Metal working fluids, industrial lubricating oils.

Typical Treat

Nominal dosages would range from 0.5 to 10.0 wt. % of the finished lubricant.

Handling Information

Calcinate® OTS is a liquid overbased calcium sulfonate and is normally handled at elevated temperatures. For general purposes, the following storage and handling temperatures are recommended:

Storage Handling

60-80°C (140-176°F) 80-90°C (176-194°F)

Safety Information

For more extensive information on the safe handling and use of this product, please see the Safety Data Sheet.

Shipping Information

Petroleum Oil, N.O.I.B.N.
Tank cars, tank trucks and non-returnable 55-gallon steel drums.

PropertiesTest MethodTypical Values
Calcium, wt. %ASTM D495112.0
Calcium Sulfonate, wt.%ASTM D371228.3
Total Base Number, mg KOH/gASTM D2896305
Water, wt. %ASTM D950.30
Viscosity @ 100ºC, cStASTM D44575
Flash Point, COC ºCASTM D92220
Specific Gravity 15ºCASTM D40521.13
Color (dilute), ratingASTM D15005.0
Sediment, vol. %ASTM D22730.02
Free Alkalinity, mgKOH/gSAM00530

For more information, please contact us or email sales@petrico.com