Calcium Chloride (1lb / 16oz) Wikipantry On Sale! from 1225 /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. Used to set Sodium Alginate solutions resulting in spheres that gel on the outside and remain liquid in the center. BULK ORDERS: For orders over 30 units please call us to place order.