Other
Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms: > Cellulose ethers: > Carboxymethylcellulose and its salts > Other
Duty Rate (from China)
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 3912.31.00.90
CMC Sodium Salt for Detergents
Carboxymethylcellulose sodium salt prevents soil redeposition in laundry detergents. Classified HTS 3912.31.00.90 as other CMC salts in primary granular form for industrial use. Meets chapter notes for pure cellulose ether polymers.
High-Purity CMC for Cosmetics
High-purity carboxymethylcellulose sodium for cosmetic creams and lotions as a rheology modifier. HTS 3912.31.00.90 covers this as other CMC salts in primary form, with >95% polymer content. Used in personal care formulations.
Technical Grade CMC Flakes
Technical-grade CMC in flake form for paper sizing and textile printing. Falls under HTS 3912.31.00.90 as other carboxymethylcellulose salts per predominant monomer rule. Primary form for industrial processing.
Pharma-Grade Cross-Linked CMC
Cross-linked sodium carboxymethylcellulose for controlled-release drug matrices. Still primary polymer under HTS 3912.31.00.90 as chemically modified CMC salt per subheading note (a)(3). Imported for advanced pharma applications.
Battery CMC Binder Powder
CMC sodium binder for lithium-ion battery electrode slurries. HTS 3912.31.00.90 as other carboxymethylcellulose salt in primary form for electronics manufacturing. Critical for EV battery production.
Sodium Carboxymethylcellulose (CMC) Powder
Sodium carboxymethylcellulose (CMC) is a water-soluble cellulose ether derivative used as a thickener and stabilizer in food and pharmaceuticals. It falls under HTS 3912.31.00.90 as 'Other' carboxymethylcellulose and its salts in primary form, not specifically named elsewhere in the subheading. This powdered form is imported for industrial formulation.
Carboxymethylcellulose Sodium USP Grade
USP-grade sodium carboxymethylcellulose is a pharmaceutical excipient for tablet binding and suspension stabilization. Classified in HTS 3912.31.00.90 as other carboxymethylcellulose salts in primary forms, meeting subheading note purity criteria. Imported as powder for direct use in drug manufacturing.
Industrial CMC Viscosifier Grade
Industrial-grade carboxymethylcellulose sodium serves as a viscosifier in oil drilling fluids and ceramics. It qualifies for HTS 3912.31.00.90 as other CMC salts in primary powder form per chapter polymer classification rules. Essential for high-viscosity applications in manufacturing.
Food-Grade CMC E466 Thickener
E466 food-grade sodium carboxymethylcellulose acts as an emulsifier and stabilizer in ice cream and sauces. Under HTS 3912.31.00.90 as other carboxymethylcellulose salts in primary form, compliant with 95% monomer content. Imported for processed food formulation.