3913100020
- Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms
- Alginic acid, its salts and esters
- Sodium alginate extracted from brown seaweed, with - a loss on drying of not more than 15 % by weight (4h at 105 °C), - a water-insoluble fraction of not more than 2 % by weight, calculated on the dry weight