Application and chemical formula sharing of pharmaceutical grade sodium alginate

　　Use of pharmaceutical grade sodium alginate

　　1. Dental impression material

　　In the past, dental impression materials mainly used rubber, gypsum and other mixtures, but in recent years they have been replaced by sodium alginate impression materials. Sodium alginate impression materials have the advantages of simpl e operation and accurate tooth profile. Sodium alginate impression material and coagulant are packed in two packages. When in use, they are mixed with water and solidified in a few minutes.

　　2. Hemostatic agent

　　Sodium alginate solution has fiber precipitation in acidic or calcium salt solution, and its molecular structure is linear, so it can be made into various dosage forms of hemostatic agents, such as hemostatic gauze, hemostatic sponge, scald gauze, spray hemostatic agent, etc.

　　3. Anti-emission effect on radioactive elements and harmful metals

　　Sodium alginate has special exchange ability for some elements. It not only has the effect of preventing strontium absorption, but also has a certain therapeutic effect. When it is contaminated by radioactive strontium, a certain amount of sodium alginate can be taken orally, which can quickly absorb radioactive strontium in the digestive tract and excrete it.

　　4. Ointments, tablets and their preparations

　　Using the thickening and gelling properties of sodium alginate, it can be used as an additive for various dosage forms of drugs, such as sodium alginate mixed with lanolin to make sulfur ointment, which can treat dermatoses. Alginate oligosaccharide can be used as enteric capsule, which greatly prolongs the retention and absorption time of drugs in the intestine, thus improving the curative effect of drugs.

　 　 　 　 　Chemical molecular formula of pharmaceutical grade sodium alginate:
　

　　Molecular formula: (C5H7O4COONA)n

　　Chemical properties: white amorphous powder, odorless and tasteless, soluble in water, insoluble in organic solvents such as alcohol.