Sodium alginate CAS#9005-38-3
CAS Number:9005-38-3
Chemical Formula: C5H7O4COONa
Synonyms:
Alginicacidsodiumsalt
lowviscosity
SODIUM ALGINATE (ALGINIC ACID SODIUM SALT)
Appearance: White power
HS Code: 39131000
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Sodium alginate CAS#9005-38-3
Sodium alginate (chemical formula: CHONa), primarily made up of alginate sodium salt, is a polysaccharide-based biopolymer. It boasts several key properties, including abundant raw material sources, non-toxicity, easy degradability, and good biocompatibility.Thanks to these favorable traits, sodium alginate holds significant application value across a range of industries. These industries include medicine, food production, packaging, textiles, and biomaterials development.
Sodium alginate Chemical Properties
Melting point | 99 °C |
density | 1.0 g/cm3(Temp: 25 °C) |
FEMA | 2014 | ALGIN (LAMINARIA SPP. AND OTHER KELPS) |
storage temp. | 2-8°C |
solubility | Slowly soluble in water forming a viscous, colloidal solution, practically insoluble in ethanol (96 per cent). |
form | |
color | White to Off-white |
Odor | odorless |
PH | 6.0-8.0 (10mg/mL in H2O) |
biological source | synthetic |
Water Solubility | Soluble in water. Insoluble in alcohol, chloroform and ether. |
Sensitive | Hygroscopic |
Merck | 14,241 |
Stability: | Stable. Incompatible with strong acids, strong bases, strong oxidizing agents. |
LogP | -2.88 |
CAS DataBase Reference | 9005-38-3(CAS DataBase Reference) |
EPA Substance Registry System | Sodium alginate (9005-38-3) |
Safety Information
Hazard Codes | Xi |
Risk Statements | 36/37/38 |
Safety Statements | 24/25-36-26 |
WGK Germany | 1 |
RTECS | AZ5820000 |
F | 3 |
TSCA | Yes |
HS Code | 39131000 |
Hazardous Substances Data | 9005-38-3(Hazardous Substances Data) |
Toxicity | LD50 oral in rat: > 5gm/kg |
Sodium alginate CAS#9005-38-3 Application
Sodium alginate is a type of gum derived from alginic acid—itself extracted from seaweed—and exists as the sodium salt form of this acid.
It has two key physical properties: first, it dissolves in both cold and hot water, and can create solutions with varying levels of viscosity; second, it forms irreversible gels when combined with calcium salts or acids.Its functional uses span multiple fields:
Food industry: Acts as a thickener, binder, and gelling agent, used in dessert gels, puddings, sauces, toppings, and edible films. In ice cream production, it works as a stabilizing colloid—this ensures the ice cream has a creamy texture and prevents ice crystals from forming.
Industrial sector: Applied in drilling muds and coatings; used to flocculate solids during water treatment; serves as a sizing agent, emulsion stabilizer, and suspending agent (e.g., in soft drinks); and is an ingredient in dental impression materials.
Pharmaceutical field: Functions as a pharmaceutical aid, specifically as a suspending agent.
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