Encyclopedia / Dyestuff Intermediates / Pharmaceutical Intermediates / Food Additives

Sodium alginate

CAS：9005-38-3
MW:398.31668
MF：C6H9NaO7

Sodium alginate, with the chemical formula C6H9NaO7 and CAS registry number 9005-38-3, is a compound derived from brown seaweed. This water-soluble polysaccharide is commonly used as a thickening, stabilizing, and gelling agent in various industries, including food, pharmaceuticals, and cosmetics. Sodium alginate plays a significant role in food applications, where it is utilized to improve texture, enhance mouthfeel, and create unique culinary presentations. In brewing industry as auxiliary fining agent, foam stabilizer. Its ability to form gels in the presence of calcium ions makes it particularly useful in the production of gels, films, and beads for controlled drug delivery systems in pharmaceutical formulations. Additionally, sodium alginate finds application in tissue engineering, textile printing, and wound dressings due to its biocompatibility and biodegradability. View more+

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Names and ldentifier
Properties
Use and Manufacturing
Safety and Handling
Msds
NMR Spectrum
Other Information
Computational chemical data
Related Questions
Realated Product Infomation

1. Names and Identifiers

1.1 Name: Sodium alginate

1.2 Synonyms: 6-[(2-carboxy-4,5-dihydroxy-6-methoxy-3-oxanyl)oxy]-4,5-dihydroxy-3-methoxy-2-oxanecarboxylic acid; Alginate Sodium; Alginic Acid Sodium Salt, Technical Grade; Alginicacidsodiumsalt,lowviscosity; CuringBon; EINECS 905-385-3; FEMA 2015; hzsn; MFCD00081310;

1.3 CAS No.: 9005-38-3

1.4 CID: 5102882

1.5 EINECS: 618-415-6

1.6 Molecular Formula: C6H9NaO7

1.7 Inchi: InChI=1S/C6H10O7.Na/c7-1-2(8)4(5(10)11)13-6(12)3(1)9;/h1-4,6-9,12H,(H,10,11);/q;+1/p-1

1.8 InChkey: MSXHSNHNTORCAW-UHFFFAOYSA-M

1.9 Canonical Smiles: C1(C(C(OC(C1O)O)C(=O)[O-])O)O.[Na+]

1.10 Isomers Smiles: C1(C(C(OC(C1O)O)C(=O)[O-])O)O.[Na+]

2. Properties

2.1 Appearance: white to light yellow granules or powder

2.2 Storage: Hygroscopic. Ambient temperatures.

2.3 Chemical Properties: Colorless or slightly yellow solid occur-ring in filamentous, granular, and powdered forms.Forms a viscous colloidal solution with water;insoluble in alcohol, ether, and chloroform. Com-bustible.

2.4 Color/Form: Cream-colored powder
Filamentous or granular solid or powder

2.5 PH: 6.0-8.0 (10mg/mL in H2O)

2.6 Water Solubility: soluble

2.7 Stability: Stable. Incompatible with strong acids, strong bases, strong oxidizing agents.

2.8 StorageTemp: Store at RT.

3. Use and Manufacturing

3.1 Description: Colorless or slightly yellow solid occur-ring in filamentous, granular, and powdered forms.Forms a viscous colloidal solution with water;insoluble in alcohol, ether, and chloroform. Com-bustible. Sodium alginate occurs as an odorless and tasteless, white to paleyellowish-brown colored powder.

3.2 History: Sodium alginate is a natural polysaccharide product that was first described in a patent application by the British chemist Edward C C Stanford in 1881. To this day brown algae are still the main source used to extract sodium alginate from. This group includes many of the seaweeds, like kelps, found in chilly northern seas. In addition to the food industry, the gelling properties of sodium alginate have been used in medical, dental and cosmetic applications for years.

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3.3 Produe Method: Alginic acid is extracted from brown seaweed and is neutralizedwith sodium bicarbonate to form sodium alginate.

3.4 Usage: In brewing industry as auxiliary fining agent, foam stabilizer.

4. Safety and Handling

4.1 Exposure Standards and Regulations: Substance added directly to human food affirmed as generally recognized as safe (GRAS).
Sodium alginate used as a stabilizer in animal drugs, feeds, and related products is generally recognized as safe when used in accordance with good manufacturing or feeding practice.

4.2 DisposalMethods: SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and conformance with environmental and public health regulations.

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4.3 FirePotential: COMBUSTIBLE

4.4 Safety Profile: Poison by intravenous and intraperitoneal routes. When heated to decomposition it emits toxic fumes of Na2O

4.5 Formulations/Preparations: It consists chiefly of sodium salt of alginic acid, polyuronic acid composed of beta D-mannuronic acid residues linked so that carboxyl group of each unit is free while aldehyde group is shielded by glycosidic linkage.
All derivatives of alginic acid ... designated by the generic term algin. ... Most commonly used algin compound is sodium alginate ... often used interchangeably.
Trade names include Alginate, SFC; Cecalgum, Sanofi; Dialgin, Diamalt; Keltex, Kelco; Lamitex, Protan; Manutex, Kelco.
Dental alginates are powder mixtures with the following composition: sodium alginate (10 ? 20 wt %), calcium sulfate (10 wt %), trisodium phosphate (1 ? 4 wt %), diatomite (70 ? 80 wt %), color and flavor (1 ? 2 wt %).

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4.6 Incompatibilities: Sodium alginate is incompatible with acridine derivatives, crystalviolet, phenylmercuric acetate and nitrate, calcium salts, heavymetals, and ethanol in concentrations greater than 5%. Lowconcentrations of electrolytes cause an increase in viscosity but highelectrolyte concentrations cause salting-out of sodium alginate;salting-out occurs if more than 4% of sodium chloride is present.

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4.7 Report

Reported in EPA TSCA Inventory.

4.8 Safety: Safety Description?of Sodium alginate (CAS NO.9005-38-3): 24/25?
S24/25: Avoid contact with skin and eyes.
Poison by intravenous and intraperitoneal routes. When heated to decomposition it emits toxic fumes of Na₂O.

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4.9 Specification: solid
Safety Statements:24/25-36-26
24/25:Avoid contact with skin and eyes
36:Wear suitable protective clothing
26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice

4.10 Toxicity

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
cat	LD50	intraperitoneal	250mg/kg (250mg/kg)	?	FAO Nutrition Meetings Report Series. Vol. 53A, Pg. 381, 1974.
mouse	LDLo	intraperitoneal	500mg/kg (500mg/kg)	BLOOD: HEMORRHAGE	Indian Journal of Physiology and Pharmacology. Vol. 12, Pg. 129, 1968.
rabbit	LD50	intravenous	100mg/kg (100mg/kg)	?	FAO Nutrition Meetings Report Series. Vol. 53A, Pg. 381, 1974.
rat	LD	intraperitoneal	> 1gm/kg (1000mg/kg)	?	Indian Journal of Physiology and Pharmacology. Vol. 12, Pg. 129, 1968.
rat	LD50	intravenous	1gm/kg (1000mg/kg)	?	FAO Nutrition Meetings Report Series. Vol. 53A, Pg. 381, 1974.
rat	LD50	oral	> 5gm/kg (5000mg/kg)	?	Drugs in Japan Vol. 6, Pg. 42, 1982.

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5. MSDS

2.Hazard identification

2.1 Classification of the substance or mixture

no data available

2.2 GHS label elements, including precautionary statements

Pictogram(s)	no data available
Signal word	no data available
Hazard statement(s)	no data available
Precautionary statement(s)
Prevention	no data available
Response	no data available
Storage	no data available
Disposal	no data available

2.3 Other hazards which do not result in classification

no data available

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6. NMR Spectrum

IR : KBr disc

IR : nujol mull

7. Computed Properties

Molecular Weight：398.31668g/mol
Molecular Formula：C₆H₉NaO₇
Compound Is Canonicalized：True
XLogP3-AA：216.02459690
Monoisotopic Mass：216.02459690
Complexity：210
Rotatable Bond Count：1
Hydrogen Bond Donor Count：4
Hydrogen Bond Acceptor Count：7
Topological Polar Surface Area：130
Heavy Atom Count：：14
Defined Atom Stereocenter Count：0
Undefined Atom Stereocenter Count：5
Defined Bond Stereocenter Count：0
Undefined Bond Stereocenter Count：0
Isotope Atom Count：0
Covalently-Bonded Unit Count：2
CACTVS Substructure Key Fingerprint：AAADccBgOCAAAAAAAAAAAAAAAAAAAAAAAAAkAAAAAAAAAAAAAAAAGgAACAAACBSwgAMACAAABgAIAACQCAIAAAAAAAAAAAFAAAAREBYAAAQCQAAFIAAHAAHKbARAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

8.Other Information

Usage: A gelling polysaccharide extracted from giant brown seaweed, it is useful in viscosity studiesAlginic acid sodium salt is widely utilized in the food industry as flavorless gum which enhances viscosity and acts as an emulsifier. It finds application as a thickener for reactive dyestuffs which is used in textile screen printing and carpet jet-printing. It is used as indigestion tablets and for the preparation of dental impressions. As a polymer, it combines with chitosan to synthesize a biodegradable porous scaffold which is useful for tissue engineering applications. It acts as a food additive and is used in production of gel-like foods such as baking. It is also used for encapsulating agents of microparticles of beta-galactosidae and in the preparation of alginate hydrogels with tunable mechanical properties.

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Usage: A gelling polysaccharide extracted from giant brown seaweed, useful in viscosity studiesAlginic acid sodium salt is widely utilized in food industry as flavorless gum, which enhances viscosity and as an emulsifier. It finds application as thickener for reactive dyestuffs, which is used in textile screen printing and carpet jet-printing. It is used indigestion tablets and the preparation of dental impressions. As a polymer, it combines with chitosan to synthesize a biodegradable porous scaffold, which is useful for tissue engineering applications. It acts as a food additive and involved in the production of gel-like foods such as bakers. It is employed as thickener for reactive dyestuffs in textile screen-printing and carpet jet-printing. It is also used as encapsulating agents of microparticles of beta-galactosidae and in the preparation of alginate hydrogels with tunable mechanical properties.

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Usage: It is a hematologic agent, drug that acts on blood and blood-forming organs and those that affect the hemostatic system. sodium alginate has been used in warp sizing, packing and printing. In printing, it is an ideal kind of material with wide applications in the cotton, wool, silk and synthetic fiber. Sodium alginate is widely used in food industry such as it is the main material of seaweed, synthetic grape and synthetic cherry, it is taken as a stabilizer of ice cream and ice cream bar because of its dense organization and slow solution speed. It is also the main material of the dainty cold powder and jelly, As a stabilizer of cake (such as cookies, bread, fine dried noodle, chocolates) and a polish of bread, sodium alginate can keep the cookies sweet-smelling and avoid falling to pieces, and make the noodle smooth and reduce breaking ratio of noodle and fragmentation of bread. Sodium alginate is also a good thickener of jam, chili sauce, jelly, tomato ketchup, fishpaste, pudding and salad flavoring.

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9. Toltal 414 Suppliers View more

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Hebei Yanxi Chemical Co.,Ltd

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10. Related Questions

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11. Realated Product Infomation