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Sodium alginate

Sodium alginate
Sodium alginate
CAS No.
9005-38-3
Chemical Name:
Sodium alginate
Synonyms
og1;ALGIN;minus;tagat;Aigin;kelgin;kelgum;kelset;keltex;amnucol
CBNumber:
CB0485676
Molecular Formula:
C5H7O4COONa
Formula Weight:
0
MOL File:
Mol file

Sodium alginate Properties

FEMA 
2014 | ALGIN (LAMINARIA SPP. AND OTHER KELPS)
storage temp. 
Store at RT.
form 
powder
color 
White to Off-white
PH
6.0-8.0 (10mg/mL in H2O)
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.
CAS DataBase Reference
9005-38-3(CAS DataBase Reference)
EPA Substance Registry System
Alginic acid, sodium salt(9005-38-3)

SAFETY

Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  24/25-36-26
WGK Germany  1
RTECS  AZ5820000
3
TSCA  Yes
Hazardous Substances Data 9005-38-3(Hazardous Substances Data)

Sodium alginate price More Price(28)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 180947 Alginic acid sodium salt 9005-38-3 100g $44 2017-11-08 Buy
Sigma-Aldrich 180947 Alginic acid sodium salt 9005-38-3 250g $67 2017-11-08 Buy
Alfa Aesar A18565 Alginic acid sodium salt, very low viscosity 9005-38-3 100g $34.4 2017-11-08 Buy
Alfa Aesar A18565 Alginic acid sodium salt, very low viscosity 9005-38-3 500g $143 2017-11-08 Buy
Sigma-Aldrich A2033 Alginic acid sodium salt from brown algae 9005-38-3 500g $167.5 2017-11-08 Buy

Sodium alginate Chemical Properties,Uses,Production

Description

Sodium alginate is the sodium form of alginate. Alginate is a linear, anionic polysaccharide consisting of two form of 1, 4-linked hexuronic acid residues, β-d-mannuronopyranosyl (M) and α-l- guluronopyranosyl (G) residues. It can be arranged in the form of blocks of repeating M residues (MM blocks), blocks of repeating G residues (GG blocks), and blocks of mixed M and G residues (MG blocks). Commercially available alginate currently originates from algae. Alginate has wide applications. For example, one of its most important role is being used as wound dressing materials for the treatment of acute or chronic wounds. The use of alginate crosslinking to make hydrogels for cell encapsulation is also quite valuable. The emergence of various kinds of its derivatives recently has further extended its application.

Chemical Properties

solid

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.

Uses

  1. Sodium alginate can be used as a flavorless gum. It is used by the foods industry to increase viscosity and as an emulsifier. It is also used in indigestion tablets and the preparation of dental impressions.
  2. Sodium alginate (NaAlg) and its modified forms have been widely used as membranes in pervaporation (PV) separation of aqueous‐organic solutions because of the hydrophilic nature and versatility to modify/tune their structures to achieve the desired separation.
  3. Sodium alginate is a polymer which can be extracted from brown seaweed and kelps. It is one of the structural polymers that help to build the cell walls of these plants. It has some unusual properties and a wide variety of uses.
    The polymer can be represented like this:
    Sodium alginate
    When sodium alginate is put into a solution of calcium ions, the calcium ions replace the sodium ions in the polymer. Each calcium ion can attach to two of the polymer strands. This is called cross-linking and can be represented like this:
    Calcium alginate

Uses

In the manufacture of ice cream where it serves as a stabilizing colloid, insuring creamy texture and preventing the growth of ice crystals. In drilling muds; in coatings; in the flocculation of solids in water treatment; as sizing agent; thickener; emulsion stabilizer; suspending agent in soft drinks; in dental impression preparations. Pharmaceutic aid (suspending agent).

References

Pawar, Siddhesh N., and Kevin J. Edgar. Biomaterials 33.11 (2012): 3279-3305. Yang, Ji-Sheng, Ying-Jian Xie, and Wen He. Carbohydrate polymers 84.1 (2011): 33-39.

Sodium alginate Preparation Products And Raw materials

Raw materials

Preparation Products


Sodium alginate Suppliers

Global( 245)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Qingdio BZ Oligo Biotech Co., Ltd.
+0086-532-81926227
+0086-532-81926219 ann@marine-oligo.com CHINA 67 55
Mainchem Co., Ltd.
0592-6210733
0592-6210733 sales@mainchem.com CHINA 1948 55
Shenzhen Sendi Biotechnology Co.Ltd.
0755-23311925 18102838259
0755-23311925 Abel@chembj.com CHINA 3229 55
Shanghai Macklin Biochemical Co.,Ltd. 15221275939
021-51821727 shenlinxing@macklin.cn China 13251 55
Shanghai Orgchem Co.,Ltd. +86-21-5877 1921
+86-21-5877 1925 info@chemofchina.com China 9849 55
Qingdao Bz Oligo Biotech Co., Ltd. +86 (532) 8192-6227
+86 (532) 8192-6219 ann@marine-oligo.com China 87 55
Shanghai Boyle Chemical Co., Ltd. Mr Qiu:021-50182298(Demestic market) Miss Xu:021-50180596(Abroad market)
+86-21-57758967 sales@boylechem.com China 2221 55
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96820 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) sh@meryer.com China 40398 62
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 saleschina@alfa-asia.com China 30309 84

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