... 03112663.6 2) Product character: Black or brown powder, water soluble 3) Main ingredient: Alginic Acid Alga21ST Seaweed Extract ... no.: 03112663.6 Product character:Black or brown flake, water soluble, pH=8-10Main ingredient: Alginic Acid: 8-15 ... to 30%.Method of application: Spraying: Diluted with water by 1:2500-3000.The crops with one picking ... N/D Natural Seaweed Extract Flake, 100% water soluble