Purified Agar CAS NO.9002-18-0

agar is polysaccharide extracted from seaweed, which is one of the world's most widely used seaweed gel. agar is hydrophilic colloid, white or similar white powder or strip products. it is insoluble in cold water and soluble in boiling water which is clear liquid, when cooled to 34 to 43 ℃ to form a solid gel, and it cannot melt when heated below 85 ℃. so it is one of the best curing agent for solid medium. agar solid culture medium, can be used for high temperature culture without melting, vaccination after solidification, also from cultures burned to death. therefore, agar is the most widely used in the preparation of various biological medium and in the production of graphite.