CMS Modified Starch for Textile/Paper/Detergent/Coating/Oil Drilling/Ceramic CAS NO.9063-38-1

Sodium carboxymethyl starch (CMS) is a modified starch with carboxymethyl ether, which is superior to carboxymethyl cellulose (CMC) and is the best product to replace CMC. CMS aqueous solution is stable and excellent performance, with bonding, thickening, water retention, emulsification, suspension, dispersion and other functions. CMS in the process of oil wells as a slurry stabilizer, water retention agent, play a role in reducing water loss, improve the clay particles in the drilling of the role of coal particle stability. CMS has little effect on the plastic viscosity of the mud, which has great influence on the power and shear force, which is beneficial to carry the cuttings, especially when the drilling salt is used, which can stabilize the drilling fluid and reduce the loss. Particularly suitable for high salinity, high PH value of saline alkali wells.

Specification Product Name CMS /Modify Starch Grage Industry Appearance white or yellowish powder

Viscosity  2% soln 25oC                      100-300

                                                             300-500

                                                              550-1200

Moisture  % ≤10 PH 8.0-11.5

Degree of subsitution (D.S)                    0.2-0.6

Particle size                                            ≥80%

Total numer of colonies                  ≤1000 Coliform 

                                                       ≤100 Molds and yeasts ≤25

Chloride                                            ≤7.0

Pathogenic bacterium Not Detected