Alginate potassium

Alginic acid, potassium salt E402 Improved Kelmar potassium polymannuronate. 

Potassium alginate occurs as a white to yellowish, fibrous or granular powder it is almost odorless and tasteless. 

Particle size distribution average particle size p lSOpm Improved Kelmar) 

Viscosity (dynamic) 400mPas (for a 1% dispersion of Improved Kelmar). Vicosities of 4.32xl0 mPas (2.5% dispersion and 31.1 x 10 mPa s (4% dispersion) have been reported.  

In the solid state, potassium alginate is a stable material that is not prone to microbial spoilage. Over time, a slow reduction in the degree of polymerization can occur, which may be reflected in a reduction in the viscosity of solutions. As both temperature and moisture can impair the performance of potassium alginate, storage below 25°C is recommended. 

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Polyvinylpolypyrrolidone Potassium Alginate Potassium Citrate Potassium Polymetaphosphate Potassium Tripolyphosphate Povidone PVP... 

Assay A sample yields not less than 16.5% and not more than 19.5% of carbon dioxide (C02), corresponding to between 89.2% and 105.5% of potassium alginate (equiv wt 238.00), calculated on the dried basis. 

Assay Determine as directed under Alginates Assay, Appendix IIIC. Each milliliter of 0.25 N sodium hydroxide consumed in the assay is equivalent to 28.75 mg of potassium alginate (equiv wt 238.00). 

Potassium alginate Propoxylated fatty alcohol Proteinaceous compound PVA emulsion... 

Ammonium alginate calcium alginate potassium alginate propylene glycol alginate sodium alginate. 

Alginic acid potassium alginate sodium alginate propylene glycol alginate. 

Potassium alginate should be stored under cool, dry conditions in a well-closed container. 

Alginate obtained from brown seaweed is subjected to demineralization, extraction, and precipitation of alginic acid. Following neutralization, the potassium alginate obtained is dried and milled. 

Potassium alginate is widely used in food products. It is currently used as an excipient only in experimental pharmaceutical formulations. 

Observe normal precautions appropriate to the circumstances and quantity of material handled. When heated to decomposition, potassium alginate emits acrid smoke and irritating fumes. 

Table I Food Chemicals Codex specifications for potassium alginate. ...

Although not included in any pharmacopeias, a specification for potassium alginate is contained in the Food Chemicals Codex (FCC) see Table I. 

E215 Ethylparaben Sodium 289 E402 Potassium Alginate 594... 

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