Sodium Alginate (1lb / 16oz) Wikipantry On Sale! from 3650 /per Qty. Sold Out This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Works as a cold gelling agent -needs no heat to gel. Gels in the presence of calcium compounds. Used w/ calcium chloride to make caviar & spheres. BULK ORDERS: For orders over 30 units please call us to place order.