Alginic acid, its salts and esters
Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms. > Cellulose acetates: > Non-plasticized > Alginic acid, its salts and esters
Duty Rate (from China)
Products classified under Tariff item 3913.10
Alginic Acid Powder
Pure alginic acid in powdered primary form, extracted and purified from brown seaweeds such as Laminaria species. This product is the base polymer itself, not a salt or ester, and is used in research, pharmaceuticals, and as a thickening agent.
3913.10.00Ammonium Alginate Solution Concentrate
Concentrated aqueous solution of ammonium alginate, a salt of alginic acid, in primary form for further processing. Used in welding rod coatings and ceramics, this solution is a liquid primary form under the tariff item.
3913.10.00Calcium Alginate Granules
Calcium alginate granules, a calcium salt of alginic acid derived from brown algae, in granular primary form. Used in wound dressings and food applications, this product is a salt of alginic acid under the tariff item.
3913.10.00Food Grade Propylene Glycol Alginate
Food-grade propylene glycol alginate (PGA), an ester of alginic acid, in powdered form for ice cream stabilization. This ester meets FCC standards and is classified under the tariff item as an ester of alginic acid in primary form.
3913.10.00Pharmaceutical Grade Calcium Alginate
USP-grade calcium alginate powder for antacid tablets and encapsulation, sourced from controlled algae harvests. This pharmaceutical-grade salt of alginic acid is in primary form and offers slow-release properties for drug delivery.
3913.10.00Potassium Alginate Flakes
Potassium alginate flakes, a salt of alginic acid derived from Ascophyllum nodosum, in flake form for industrial thickening. This primary form is used in printing pastes and falls under the tariff item as an alginic salt.
3913.10.00Propylene Glycol Alginate (PGA)
Propylene glycol alginate (PGA), an ester of alginic acid partially esterified with propylene glycol, supplied as a powder for food and beverage stabilization. This ester is in primary form and qualifies under the tariff item.
3913.10.00Sodium Alginate Powder
Sodium alginate powder, the sodium salt of alginic acid, a natural polysaccharide extracted from brown seaweed, appearing as a white to yellowish powder in primary form. This salt of alginic acid falls under the tariff item.
3913.10.00Surgical Grade Sodium Alginate
Sterile sodium alginate powder for dental impression materials and hemostatic agents in primary form. This surgical-grade salt of alginic acid is biocompatible and used in alginate impression pastes mixed with calcium sulfate.
3913.10.00Textile Grade Sodium Alginate
High-viscosity sodium alginate powder specifically for reactive printing on cotton fabrics, derived from Macrocystis pyrifera. This salt of alginic acid is in primary form and provides sharp print definition.