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Chrome-Free Lignosulfonate FCLS


Product Description

Chrome-Free Lignosulfonate FCLS is specially formulated to act as a thinner / deflocculant in virtually all water-base mud systems. SPERSENE CF additive reduces and stabilizes viscosity and assists in reducing fluid loss.


Chrom-Free Lignosulfonate is used to control rheology characteristics of a wide variety of drilling mud types, including calcium mud systems. It also contributes to filtration control and serves to emulsify oil. This product may be used to replace conventional chrome and ferrochrome lignosulfonates in virtually any application, with benefits in terms of environmental impact and legal compliance.


Environmentally compatible

Compatible with all water-base fluids

Excellent deflocculant

Stable at temperatures up to 302°F / 150°C

Excellent performance in the presence of contaminants

Assists in reducing fluid loss

Technical Data


  Brown powder


8.5% Max

Ph (2% solution )


Recommended Treatment

Add Chrome-Free Lignosulfonate in concentration of 3.0-11.0 kg/m³ (1.1 to 3.9 lb/bbl) to any active system. Mix slowly through a jet mixer or sift slowly into the vortex of a high-speed stirrer.

Environmental Information

For information concerning environmental regulations applicable to Chrome-Free Lignosulfonate, contact the Health Safety and Environmental Department.


Transportation of commodity name is not restricted by either international or CHINA regulatory agencies.

Safe Handling Recommendations

Utilize normal precautions for employee protection when handling chemical products. Use of standard PPE is recommended for employee comfort and safety. See Material Safety Data Sheet (MSDS) prior to use.

Package and Storage

25kg bags or according to customer’s requirement.

Avoid high-intensity extreme pressure and prolonged exposure to strong sunlight. Keep bag closed. Keep away from heat, sparks and flames.


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