Sodium lignosulfonate

Base Information

• Chemical Name: Sodium lignosulfonate
• CAS No.: 8061-51-6
• Molecular Formula: C20H24Na2O10S2
• Molecular Weight: 534.51
• Hs Code.: 3804000090
• Mol file: 8061-51-6.mol

Synonyms:AS 3;Betz 402;Borresperse NA;Diwatex 30FKP;GZMN;HR5 (cement additive);Kelig 400;Kraftsperse 25M;LSU;Lignopol;Lignosite 458;Lignosite 854;Lignosol D 10;Lignosol FTA;Lignosol SFX65;Lignosol X 50;M 10;Maracell C;Maracell XC 2;Marasperse B;Marasperse CBO;Marasperse CBS;Marasperse N;Newkalgen RX-B;Norlig 12;Orzan CD;Orzan S;Pearllex N;Polyfon F;Polyfon Hun;Polyfon T;Pozzolith 70;Raylig 260LR;Reax05A;Reax 45A;Reax 80C;Reax 82;Reax 83C;Reax 85C;Reax 905;Reax 95A;Reax SR 1;Reveal SM;Reveal SM 5;SXMN;San-X P 252;Sodalig;Sorpol 9047K;Starflo AD;Temsperse P 2000;Temsperse S 001;UF 10000A;Ufoxane 2;Ufoxane 3;Ufoxane 3A;Ultramix;

Chemical Property of Sodium lignosulfonate

Chemical Property:

• Appearance/Colour: brown powder
• Melting Point: 993oC
• Boiling Point: 1704oC
• PSA: 179.08000
• LogP: 4.36490
• Solubility.: H2O: soluble

Purity/Quality:

97%, ^*data from raw suppliers

Sodium Ligninsulfonate ^*data from reagent suppliers

Safty Information:

• Safety Statements: 24/25

MSDS Files:

SDS file from LookChem

Useful:

• Uses: 1,It is mainly used as cement water-reducing agent, leading to the diffusion of group of cement so that the water content is precipitated out, increasing its mobility, thereby reducing the mixing water, and saving cement. When being used in the formulation of the oil drilling pulp, it can be used to reduce mud viscosity and shear force to control the mobility of drilling mud. In this case, the inorganic mud and inorganic salt impurities remain in the suspension state in the drilling, preventing the mud flocculation. It also has prominent salt resistance, anti-calcium and high temperature resistance. 2,It can also be used as concrete water-reducing agent, oil drilling mud dispersant, printing and dyeing and so on Binder for ceramics, dispersing agent for pigments and in water treatment, stabilizer for wax and O/W emulsions, and tanning agent. Dispersing agent for dyestuffs, wax emulsions, pigments, water treatment and cleaners.
• Production method: This is the same to the water reducing agent MY. Calcium bisulfite pulping process: the sulfite or bisulfate contained in the pulp slurry binds directly with the hydroxyl contained in the lignin molecules to produce lignin sulfonate. 10% lime milk was added to the waste liquid and heated at (95 ± 2) ° C for 30 min. Have the calcium solution stand for a while and filter out the precipitate, wash with water and add sulfuric acid. Filtrate to remove calcium sulfate. Na2CO3 was then added to the filtrate to convert calcium lignosulfonate to sodium sulfonate. A reaction temperature of 90 ℃ is appropriate. After 2h of reaction, stand, filter to remove impurities such as calcium sulfate. The filtrate is concentrated, cooled and crystallized to obtain the product. Take the papermaking waste liquid obtained from the alkali pulp as raw material. First add concentrated sulfuric acid to the waste solution to about 50%, stir for 4~6 h. And then use lime milk, sedimentation, filtration, beating and acid dissolving, add sodium carbonate for conversion, concentration and drying to get the final product. See 1 for details. Take the waste liquid obtained from grass pulping method as raw materials. Methods is the same as 2.