Sodium carboxymethyl starch, as an important chemical raw material and industrial adjuvant, plays an irreplaceable role in many fields. Its unique structure and properties give it broad application prospects, especially in the food, pharmaceutical, papermaking, and textile industries, where sodium carboxymethyl starch plays an important role.

　　Sodium carboxymethyl starch has wide applications in the food industry. It can be used as a thickener, stabilizer, or emulsifier to improve the taste and texture of food. For example, adding sodium carboxymethyl starch to ice cream can improve its stability and taste; adding sodium carboxymethyl starch to juice can prevent precipitation and layering, maintaining the clarity and taste of the juice.

　　Sodium carboxymethyl starch also has important applications in the pharmaceutical industry. As a drug carrier or excipient, it is used to improve the solubility and stability of drugs, improving the bioavailability and therapeutic effect of drugs. For example, adding sodium carboxymethyl starch to tablets can act as a disintegrant to promote rapid drug release; adding sodium carboxymethyl starch to injections can act as a stabilizer to prevent precipitation and crystallization during storage.

　　Sodium carboxymethyl starch also plays an important role in the papermaking and textile industries. In the papermaking process, sodium carboxymethyl starch can be used as a surface sizing agent or coating agent to improve the smoothness and gloss of the paper and improve the printing performance of the paper. In the textile process, sodium carboxymethyl starch can be used as a sizing or finishing agent to improve the softness, moisture absorption, and anti-static properties of the fabric.

　　Although sodium carboxymethyl starch has broad application prospects, its safety and environmental protection should be considered during use. In the production and use process, relevant regulations and standards should be strictly followed to ensure product quality and safety. At the same time, new application fields and alternative products need to be actively explored and researched to reduce environmental pollution and harm.