CLUSTER 01 · CONSTRUCTIONPIPELINE
Sodium Lignosulfonate
Construction / pellet
At a glance
CAS8061-51-6
HS / TARIC3804 00 00
REACHOn-file · natural polymer derivative
PACK FORMAT25 kg PP-woven bags · 1 MT big-bags
What it does
Sodium lignosulfonate — the first-generation natural plasticiser and dispersant. Lower performance than PCE but materially cheaper; used as a water-reducer, dispersant in concrete admixtures, and a binder in industrial applications.
Also known as
Sodium lignosulfonate · sodium lignosulphonate · SLS admixture · lignin-based water reducer · first-generation plasticiser · CAS 8061-51-6 · HS/TARIC 3804 00 00
Typical applications
- Concrete water-reducer (entry-grade admixtures)
- Dispersant in dye, pesticide and ceramic systems
- Binder in animal-feed pellets and dust suppression
- Oil-well drilling fluid additive
Specification band
Solid content≥ 93%
Water-reducing rate8 – 10%
pH (10% aq.)7 – 9
Reducing matter≤ 7%
Calcium + Magnesium≤ 0.4%
Moisture≤ 7%
Industry-typical published bands. Producer-specific values on the COA issued per shipment.
Handling & packaging
- Hygroscopic · store dry, sealed
- Shelf life 12 months
- Not classified as hazardous for transport
Documents on file per shipment
Per-batch COASDS in EU CLP formatTDS · construction / industrial grade
Serica execution notes
- MFN duty 3% under HS 3804 00 00 confirmed by broker per shipment.
- Source verified for low sugar content where end-use is concrete (sugars are set-retarders).
- DDP to gate.
SPEC-MATCH LADDER · 3 TIERS
T1 · SPEC → SPECWritten spec match
T2 · SAMPLE → LAB DELTAReference-sample benchmark
T3 · MIX → FINISHED PARTFormulation-in-context trial
How we prove the match →
AD-HOC GRADE DEVELOPMENT
Need a variant outside these bands?
Producers develop custom grades on request — viscosity, mesh, purity band, additive package.
Brief a custom development →
Sample requests and DDP-to-gate pricing for Sodium Lignosulfonate are quoted per buyer — MOQs, lead-times and producer identities included.