Chrome Lignosulfonate

Chrome lignosulfonate is a thinner for drilling mud and fluid loss control agent. With obvious capability of anti-high temperature,anti-electrolytes,is naturally non posinionous complately compatible with other admixture agent etc. Specially used for complicated terran deep well drilling.

Main Specification

Insoluble in water2.5%max
Total Cr3.6~4.2
Cr complex75.0%max

Mud performance

ItemFresh water drilling mudSalt water
drilling mud
Normal temperatureApparent viscosity
Rate of reducing viscosity   %≥85≥65
High temperatureApparent viscosity
Rate of reducing viscosity   %≥60≥60


1. Anti- high temperature. It can anti the high temperature between 150℃ to 160℃, the  property of the  mud can stay the same during the 16 hours.
2. Anti- salt. It can anti the salt of 2%. The mud property of salt water is better than FCLS (Ferrochrome Lignosulfonate).
3. Dilution. The dilution is better than FCLS in the same mud. 
4. It is suitable to all kinds of mud due to the excellent thinning property, filtration control capacity and powerful anti-electrolytes.


Chrome Lignosulfonate can be added into drilling fluids in the form of aqueous solution or powder. When you change PH index into 10.0~10.5, the quantity of thinner was 0.5~1.0 % (W/V).


25kg.per bag (net weight), With PE film bag inside and paper-plastic complex valve bag outside.


The chemical property of this product is stable and will not change in the normal temperature and ordinary pressure. This product is in weak acid, avoid from the breakage of package and wearing full protective clothing to protect from contact with skin when carrying  

Avoid from water and wet. Keep away from heat. Put in the place of dry and ventilate

It will not self-ignition,you can put out with water or foam fire-extinguisher when it was ignited.

First aid 
If contact with eye and skin, wash eyes with lots of water and wash skin thoroughly with water