Carboxymethyl starch (CMS) is a representative product of modified starch. It is a kind of ether starch. Its sodium salt is usually used, so it is also called sodium carboxymethyl starch (CMS Na). Its appearance is white or yellowish powder or small particles. It is non-toxic, tasteless, soluble in water, and forms a transparent liquid. It is stable to light and heat.
CMS will replace carboxymethyl cellulose (CMC), which is a water-soluble polymer. The usual product is its sodium salt, which is designated as a food additive in Japan. It is called super amylopectin in Germany. It is applied in many fields such as papermaking, textile, printing and dyeing, medicine, wastewater treatment, beneficiation, casting, adhesives, cosmetics, building materials, food, leather, oil field development and daily chemical industry, and has a very broad market prospect.
Sodium carboxymethyl starch (CMS) and carboxymethyl cellulose (CMC) are one of the six fine chemical products listed by the Ministry of chemical industry as the key development in the ninth five year plan. They are essential raw materials in the ten pillar industries. Carboxymethyl starch is refined by physical and chemical reactions with starch such as wheat, corn, potato and sweet potato (any one can be used) as raw materials, Its products are widely used in oil fields, papermaking, metallurgy, daily chemicals, medicine, food, coatings and other fields, known as "industrial monosodium glutamate".
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