Agar Powder (No 2)
Agar is a gelatinous substance, obtained from algae. Agar is derived from the polysaccharide agarose, which forms the supporting structure in the cell walls of certain species of algae, and which is released on boiling.
These algae are known as agarophytes and belong to the Rhodophyta (red algae) phylum.
Agar is actually the resulting mixture of two components: the linear polysaccharide agarose, and a heterogeneous mixture of smaller molecules called agaropectin.
Solubility in water: <0.10%
Acid insoluble ash: <1.0%
Foreign organic matter: <1.0%
Foreign starch: Absent
Foreign insoluble matter: <1.0%
Sulphated ash: <0.55%
Loss on drying: 7.05%
Hazard Phrazes: Not considered harmful under normal laboratory conditions