CAS 8061-54-9 is used as an identifier for lignosulfonic acid, magnesium salt, commonly called magnesium lignosulfonate. The European Chemicals Agency lists this CAS number under that substance name, and the PubChem substance record deposited from ChemIDplus uses the same identity. A CAS number helps identify a substance category; it does not define the complete specification of every commercial magnesium lignosulfonate product.
Identity summary
| Common name | Magnesium lignosulfonate |
|---|---|
| Substance name | Lignosulfonic acid, magnesium salt |
| CAS number | 8061-54-9 |
| ECHA list number | 617-127-8 |
| Authoritative identity references | ECHA Substance Information; PubChem Substance Record |
Regulatory inventories can show additional names or identifiers associated with a substance record. Buyers should use the exact supplier name and identifier shown on the current SDS and commercial documents for the offered grade.
Why there is no single useful molecular formula
Lignosulfonates are derived from lignin, a heterogeneous aromatic biopolymer. Their molecular structures and distributions vary with biomass source, sulfite-pulping conditions, recovery, fractionation and any subsequent modification. Magnesium lignosulfonate is therefore better understood as a commercial polymeric substance or mixture of related macromolecular species than as one small, pure molecule with a single fixed molecular weight.
A structural fragment or representative formula may illustrate functional groups, but it should not be presented as the complete composition of every product. See Lignosulfonate Structure and Functional Groups and Lignosulfonate Chemical Composition and Commercial Specifications.
What the CAS number does not tell a buyer
- magnesium content or counter-ion distribution;
- solids, moisture, ash or reducing-sugar content;
- pH, solubility, viscosity or molecular distribution;
- residual inorganic ions or other process-derived components;
- powder, liquid or modified product form;
- fitness for concrete, dust control, binding, dispersion, feed or agricultural use;
- hazard classification or regulatory acceptance in a specific market.
Documents needed for product identification
| Document | Purpose |
|---|---|
| SDS | Confirms supplier identity, substance description, disclosed composition, classification, handling, storage and transport information |
| TDS | Defines the commercial grade, test items, typical or guaranteed values, form and intended functions |
| Lot COA | Reports actual results for an identified production lot against the agreed purchase specification |
| Regulatory statement | Addresses the intended application and destination jurisdiction; should not be inferred from a CAS number alone |
Commercial grade selection
When comparing grades, request test methods and confirm whether results are reported on an as-received or dry basis. Critical properties depend on the application. A concrete or mineral formulation may focus on solids, pH, reducing sugars and compatibility; a binding process may focus on moisture, viscosity or particle form and finished-product durability. Use a supplier-recommended trial range only as a starting point and validate performance in the actual materials and process.
Neutral comparison information is available in Magnesium vs Sodium Lignosulfonate. Industrial buyers can review Magnesium Lignosulfonate Industrial Applications; feed applications should be evaluated through the group’s animal-nutrition division using an appropriate grade and market-specific documentation.
Safety and regulatory interpretation
The CAS identity alone does not establish that a commercial product is non-hazardous, biodegradable, food- or feed-approved, or acceptable for unrestricted environmental release. Use the current supplier SDS and the rules applicable to the specific grade, use and jurisdiction. Do not transfer an approval or safety statement from one product or market to another.
Request current technical documentation
For grade-specific TDS, SDS, representative COA and sample information, contact info@greenagrochem.com and provide the intended application, required tests, order quantity, packaging and destination.
