Specialty Additives Available — Bulk Only

Calcium Lignosulfonate

CLS
CAS 8061-52-7 · Formula C20H24CaO10S2 · MW 528.6 g/mol
Safety Data Sheet
CAS Number
8061-52-7
Formula
C20H24CaO10S2
Molecular Weight
528.6 g/mol
Material Family
Specialty Additives
At a Glance
Material Family
Specialty Additives
Record Type
UVCB
Primary Role
Thickening / Rheology · Coupling / Adhesion Promotion
Applications & Use Cases
  • Functions as a water-reducing plasticizer in concrete and cement admixtures, dispersing cement particles to lower water demand and improve workability at a given strength.
  • Serves as a low-cost dispersant and grinding aid for ceramic bodies, gypsum board, carbon black, dyes, and agrochemical wettable-powder formulations.
  • Acts as a binder in agricultural feed pellets and as a granulation/binding aid for fertilizers and micronutrient products.
  • Applied as a dust-suppression and soil-stabilization agent on unpaved roads, haul roads, and stockpiles in mining and aggregate operations.
  • Used as a dispersant in mineral-processing slurries and oil-well drilling muds to control rheology and reduce viscosity.
Physical Properties
appearance
light to dark brown powder or liquid (typical)
odor
faint, slightly sweet (typical)
physical_state
free-flowing powder or aqueous solution (typical)
solubility_in_water
soluble (typical)
ph_solution
3-6, aqueous solution (typical)
bulk_density
~0.5-0.6 g/cm3 (typical, powder)
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

Chemical Identity
CAS Number
8061-52-7
Molecular Formula
C20H24CaO10S2
Molecular Weight
528.6 g/mol
IUPAC Name
calcium 3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate
PubChem CID
InChI Key
RYAGRZNBULDMBW-UHFFFAOYSA-L
Synonyms & Trade Names
Lignosulfonic acid, calcium salt Calcium lignin sulfonate Calcium ligninsulfonate Lignin calcium sulfonate Calcium salt of lignosulfonic acid Spent sulfite liquor, calcium salt
Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.