I. Food GradeSodium Carboxymethyl Starch

　　Sodium carboxymethyl starch (CMS) is a carboxymethyl etherified modified starch, tasteless, non-toxic, mildew-proof, and easily soluble in water. When used in various foods, it has multiple functions such as thickening, suspending, emulsifying, stabilizing, shaping, film-forming, puffing, preserving freshness, acid resistance, and health care. Its performance is superior to carboxymethyl cellulose, and it is the best product to replace carboxymethyl cellulose. Food-grade sodium carboxymethyl starch is widely used in products such as milk, beverages, frozen foods, fast food, pastries, and syrups. In addition, carboxymethyl starch is physiologically inert and has no caloric value, so it can be used to make low-calorie foods to achieve ideal results.

　　II. Pharmaceutical GradeSodium Carboxymethyl Starch

　　Sodium carboxymethyl starch (CMS) is widely used in the pharmaceutical field. In terms of drug preparations, carboxymethyl starch can replace gelatin as a raw material for preparing capsules, tablets, and sugar coatings. It has strong water absorption and expansion properties and can swell rapidly in cold water. After water absorption, the particles swell but do not dissolve, nor do they form a colloidal solution. It does not hinder the continuous penetration of water, nor does it affect the further disintegration of the tablets. Therefore, it can be used as an effective disintegrant and excipient for tablets of insoluble and soluble drugs.

　　III. Papermaking GradeSodium Carboxymethyl Starch

　　Sodium carboxymethyl starch is a carboxymethyl etherified modified starch, whose performance is superior to carboxymethyl cellulose, making it the best replacement for carboxymethyl cellulose. Carboxymethyl starch is widely used in papermaking. Added as a stabilizer to fillers, it plays a thickening and bonding role, making the paper bright, improving the printing performance of the paper, and enhancing the paper's toughness and wear resistance. Used as an additive in pulp to improve retention and drainage. It can also be used for surface sizing of paper, significantly improving the paper's dry strength, wet strength, oil resistance, ink absorbency, and water resistance. Its application in coating and bonding can improve the production and use performance of paper.

　　IV. Sodium Carboxymethyl Starch in the Construction Industry

　　Sodium carboxymethyl starch is a carboxymethyl etherified modified starch, whose performance is superior to carboxymethyl cellulose, making it the best replacement for carboxymethyl cellulose. Its solution has good thickening, stabilizing, water-retaining, film-forming, and suspending effects. It is easy to use and environmentally friendly. It has been widely used in the building materials industry. Used as a thickening and water-retaining agent in putty powder and latex paint; in coatings, it acts as a suspending agent, stabilizer, and film-forming agent, with emulsification, thickening, and anti-settling effects. Preparation of cement rubber powder is applied to cement plaster mortar, cement heat-insulating crack-resistant mortar, tile adhesive, exterior wall waterproof putty, and other cement-related products.

　　V. Ceramic GradeSodium Carboxymethyl Starch

　　Sodium carboxymethyl starch is a carboxymethyl etherified modified starch, whose performance is superior to carboxymethyl cellulose, making it the best replacement for carboxymethyl cellulose. In the ceramic industry, carboxymethyl starch is used as a shaping agent, plasticizer, and reinforcing agent. It increases the adhesion of the blank, making the blank easy to shape, doubling the bending strength, and effectively reducing the breakage rate of the blank; the moisture in the blank can evaporate evenly to prevent drying and cracking. When added to the glaze as a stabilizer and binder, it can strengthen the binding of the glaze, keep the glaze in a dispersed state, increase the surface tension of the glaze, increase the smoothness of the glaze, and reduce pinholes after baking.

　　VI. Sodium Carboxymethyl Starch for Daily Chemical Use

　　Sodium carboxymethyl starch is a carboxymethyl etherified modified starch, whose performance is superior to carboxymethyl cellulose, making it the best replacement for carboxymethyl cellulose. Carboxymethyl starch has chelating, ion exchange, and polycationic flocculation functions. It can be used as a stabilizer, fiber finishing agent, and pollution carrier in detergent formulations. Its descaling effect is significantly superior to sodium carboxymethyl cellulose, and its pollution diffusion capacity is excellent, especially for hydrophobic synthetic fiber fabrics. In the cosmetics industry, carboxymethyl starch is used as a water-fixing or water-absorbing colloid in the manufacture of anti-acne drug preparations and skin cleansers. In toothpaste, carboxymethyl starch can form a three-dimensional polymer network structure, ensuring the storage stability of the toothpaste in the tube and extending the shelf life; improving the uniformity and surface smoothness of the paste; and reducing the transmission power of the paste. Carboxymethyl starch is easily biodegradable and environmentally friendly.

　　VII. Sodium Carboxymethyl Starch for Petroleum Industry

　　Sodium carboxymethyl starch is a carboxymethyl etherified modified starch, whose performance is superior to carboxymethyl cellulose, making it the best replacement for carboxymethyl cellulose. The CMS aqueous solution is stable, with excellent performance and adhesion, thickening, water retention, emulsification, suspension, and dispersion functions. As a mud stabilizer and water-retaining agent in oil well operations, sodium carboxymethyl starch plays an important role in reducing water loss of clay particles in drilling fluids and improving their aggregation stability. CMS has little effect on the plastic viscosity of the mud, but a significant effect on power and shear force, which is beneficial for carrying rock, especially when drilling salt formations, it can stabilize the drilling fluid, reduce losses, and prevent wellbore collapse. It is especially suitable for high-salinity, high-acid-alkali salt-alkali wells.

　　VIII. Printing and Dyeing GradeSodium Carboxymethyl Starch

　　Sodium carboxymethyl starch is a carboxymethyl etherified modified starch, whose performance is superior to carboxymethyl cellulose, making it the best replacement for carboxymethyl cellulose. The CMS aqueous solution is stable, with excellent performance and adhesion, thickening, water retention, emulsification, suspension, and dispersion functions. The raw material of carboxymethyl starch is starch, which is widely sourced and inexpensive. Printing and dyeing carboxymethyl starch is used as a carrier slurry for dyes and printing and dyeing auxiliaries, with good compatibility and stability. The dyeing slurry prepared with CMS has good permeability, especially for deep and transparent imitation shapes that need to be performed on the fabric, it can quickly print patterns according to the pattern, significantly improving the vividness of the printing. In addition, carboxymethyl starch can be dissolved in cold water, making it easy to use.