Ferrochrome Lignosulfonate

Ferrochrome Lignosulfonate Description

Ferrochrome lignosulfonate(Ferrochrome lignosulphonate) is widely used as fluid loss control agent used in drilling fluids with obvious ability to resist high temperature and salty solution.

Main Specification

Name Ferrochrome lignosulfonate
Product Code GAC-FeCrLS
Appearance Yellow Brown powder
Dry maters 95%min
Water-insoluble 2.0%max
Sulfate 3%max
Lignosulfonate 55-60%
Density 0.532g/cm3
Moisture 8%Max
Total Fe 4%Max
Total Cr 4%Max


Ferro chrome lignosulfonate

Mud Property

Iterm Fresh water drilling mud Salt water drilling mud
Normal temperature Apparent viscosity mPa.s ≤20 ≤25
Rate of reducing viscosity % ≥85 ≥70
High temperature Apparent viscosity
≤30 ≤45
Rate of reducing viscosity % ≥65 ≥55


1.Ferrochrome Lignosulfonate has stronger thinning property , filtration control capacity and powerful anti-electrolytes capacity contribute to that can be applied to all kinds of mud,
2.Thermal effective temperature range is 150~160℃,also be used above 200℃ when mixed use with lignite derivatives and other temperature-resisting chemicals.
3.Ferrochrome lignosulfonate work as emulsifier for oil in water mud.


Can be directly applied to drilling fluids in the form of aqueous solution or powder. When you change PH index into 9.5~10.5, the quantity of thinner is 0.5~1.0 %. The quantity of thinner is 2.0~5.0% when it used as the controlling of fluid loss.


  • 25ks woven bags with liner inside.
  • According Customers’requirement.

Ferrochrome Lignsulfoate TDS and MSDS

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