... , pre-tanning agent, ceramics or refractories plasticizer, oil well or water dam grouting gelling agent, etc. Major technical indicators : Index nameIndex ... stability≥130PH(1% Aq. solution)5-7, 8-10Moisture≤7%Water insoluble matter ≤2%Inorganic salt≤5%Reductive matter ≤8%Properties ... Packing: 25kg in PP woven bag lined with plastic film. Sodium Lignosulphonate