Specifications calcium lignosulphonate 1.Cas no.: 8061-52-7 2.Appearance:pale yellow powder 3. Content of lignin: 55% min  Index name Index Content of lignin% ≥55 Water insoluble substance% ≤1.5 Reduzate% ≤10 PH value(1% aqueous solution) 4-7 Surface tension 55.9×10 Moisture content ≤7.0 Performances and main uses Is suitable in each kind of cast-in-place precast concrete, the reinforced concrete, the prestressed concrete, especially for the commodity concrete, anti-freezing and thawing concrete, waterproofing concrete, great volume concrete, pumping concrete, big template and the slip-form construction concrete, also may use in the petroleum drilling, asphalt emulsification, agricultural chemicals, tanning leather making,additive for coal water mixture, feed processing and so on industries. calcium lignosulphonate