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Liquid Lignosulfonate Grades: Sodium, Calcium and Potassium Comparison

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Liquid lignosulfonate loaded into a flexitank container

Liquid lignosulfonate is supplied as sodium, calcium and potassium salt grades for direct dosing, blending and bulk industrial use. The grades are not interchangeable: salt form, solids, insoluble matter, lignosulphonate content, reducing sugars, pH and density all affect handling and application performance. Select a grade by product code and confirm shipment values from the batch COA.

Liquid Grade Comparison

The values below are typical values from the current Green Agrochem technical data sheets (Revision 2.0 for each grade). They are reference values, not a binding specification; the COA accompanying each shipment reports batch results.

ParameterLiquid Sodium – Grade OneLiquid CalciumLiquid Potassium
Product codeGAC-NaLS-LGAC-CaLS-LGAC-KLS-L
AppearanceBlack liquidBlack liquidBlack liquid
Solid content45% min45% min45% min
Water-insoluble matter1% max2% max2.5% max
Lignosulphonate content50% min45% min45% min
Reducing sugarAround 7%Around 4%Around 4%
Density1.20–1.32 g/ml1.265 g/ml1.20–1.30 g/ml
pH7.0–11.0Around 5.04.0–7.0
Other––K2O 8–10%

Solid content and lignosulphonate content are different measurements and may be reported on different bases. When comparing offers or converting a dosage, confirm whether a percentage refers to the liquid as supplied or to dry solids.

Where Each Grade Is Evaluated

Application suitability and addition level must be established by laboratory and plant trials with the actual materials and process. For concrete trials, see liquid lignosulfonate for concrete workability.

Packaging, Handling and Storage

Supplied in IBC totes or flexitanks. Store in a cool, dry, well-ventilated area and protect from freezing. Shelf life is 12 months from the date of manufacture under recommended storage conditions. Avoid mist inhalation and eye or skin contact, keep containers closed when not in use and follow the current SDS.

Grade Selection and Enquiries

For supplier qualification, see our liquid lignosulfonate buyer qualification guide. To request the current TDS, SDS, representative COA, a sample or bulk packing details, email info@greenagrochem.com with the application, required grade, annual quantity, packing and destination.

All Liquid Grades

Grade (code)SolidsLignosulphonate (dry basis)pHReducing sugarWater-insoluble
Sodium Grade One (GAC-NaLS-L)45% min50% min7.0 – 11.0around 7%1% max
Sodium Grade Two (GAC-NaLS-L-2)45% min50% min9.0 – 13.0around 4%2.5% max
Sodium Grade Three (GAC-NaLS-L-3)45% min50% min (w/w)4.0 – 7.0around 14%2.5% max
Calcium general (GAC-CaLS-L)45% min45% minaround 5.0around 4%2% max
Calcium acidic (GAC-CaLS-L-Acidic)45% min55% min4.0 – 6.0around 12%1.5% max
Potassium (GAC-KLS-L), K₂O 8 – 10%45% min45% min4.0 – 7.0around 4%2.5% max
Ammonium acidic (GAC-NHLS-L-ACD), N 3 – 5%45% min50% min4.0 – 6.0around 15%2.5% max
Ammonium alkaline (GAC-NHLS-L-ALK), N 3 – 5%45% min50% min8.0 – 10.0around 10%2% max
Typical values from each grade’s TDS (Rev. 2.0); the shipment COA gives batch values. Density of all liquid grades is about 1.20 – 1.32 g/ml.

How to Choose

If you needLook at
Low insolubles for nozzles, filters or ceramicsSodium Grade One (1% max)
High pH, low sugarSodium Grade Two
Stronger binding or set retardationSodium Grade Three (around 14% sugar)
Higher lignosulphonate contentCalcium acidic (55% min)
General construction and dust controlCalcium general
Nutrient value for fertilizersPotassium or ammonium grades

Frequently Asked Questions

What liquid lignosulfonate grades are available?

Sodium Grade One, Two and Three, calcium general and acidic, potassium, and ammonium acidic and alkaline, all at 45% min solids.

Which liquid grade has the lowest insolubles?

Sodium Grade One, with 1% max water-insoluble matter.

Which liquid grade has the most sugar?

Ammonium acidic (around 15%) and sodium Grade Three (around 14%). Sugar increases binding and set retardation.