Calcium alginate

Basic Information

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CAS Number

9005-35-0

Molecular Formula

C18H24CaO19

Molecular Weight

584.4 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Ethers

Basic Chemical Raw Materials Organic Chemicals Heterocyclic Compounds

Pharmaceutical Chemicals Pharmaceutical Intermediates Heterocyclic Intermediates

Fine Chemicals Surfactants Anionic Surfactants

Laboratory Chemicals Research Chemicals Biochemical Reagents

Basic Physical Properties

Boiling Point

265.3±9.0 °C at 760 mmHg

Density

2.1173 g/cm3

Flash Point

123.8±18.9 °C

SMILES

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C1(C(C(OC(C1O)OC2C(C(C(OC2C(=O)O)OC3C(C(C(OC3C(=O)[O-])O)O)O)O)O)C(=O)[O-])O)O.[Ca+2]

InChI

InChI=1S/C18H26O19.Ca/c19-1-2(20)10(13(26)27)36-17(6(1)24)35-9-4(22)7(25)18(37-12(9)15(30)31)34-8-3(21)5(23)16(32)33-11(8)14(28)29;/h1-12,16-25,32H,(H,26,27)(H,28,29)(H,30,31);/q;+2/p-2/t1-,2-,3+,4+,5-,6-,7-,8-,9-,10-,11+,12+,16+,17+,18+;/m0./s1

InChIKey

OKHHGHGGPDJQHR-YMOPUZKJSA-L

LogP

-12.54370

Complexity

842

Synonyms & References

English

Alginic acid calcium salt from brown algae
Alginic Acid Calcium Salt
CALCIUM ALGINATE
A0738
calcium;(2S,3S,4S,5S,6R)-6-[(2R,3S,4R,5S,6R)-2-carboxy-6-[(2R,3S,4R,5S,6R)-2-carboxylato-4,5,6-trihydroxyoxan-3-yl]oxy-4,5-dihydroxyoxan-3-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylate
MFCD00143567
9005-35-0
Calcium alginate
FEMA 2015
ALGIN
ALGINATE SODIUM SALT
ALGINATE CALCIUM SALT
ALGINIC SODIUM
ALGINIC ACID SODIUM SALT
ALGINIC ACID CALCIUM SALT
calcium,(2S,3S,4S,5S,6R)-6-[(2R,3S,4R,5S,6R)-2-carboxy-6-[(2R,3S,4R,5S,6R)-2-carboxylato-4,5,6-trihydroxyoxan-3-yl]oxy-4,5-dihydroxyoxan-3-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylate
SODIUM ALGINATE
Calginate
Combinace
FS-D
FS-W
FS-W (alginate)
Flavikafine S
Flavikafine SF-D
Flavikafine SF-W
Grindsted Alginate FD 460

MDL Number

MFCD00143567

FAQ

What are the physical and chemical properties of calcium alginate (CAS: 9005-35-0)?

Calcium alginate (CAS: 9005-35-0) is a water-insoluble polymer that forms a gel-like structure when hydrated. It has a high molecular weight, typically ranging from 100,000 to 500,000 Da. The compound has limited solubility in aqueous solutions but can be dissolved in strong acids. It is relatively inert chemically but can react with acids to form monosodium alginate.

How is calcium alginate (CAS: 9005-35-0) typically synthesized?

Calcium alginate (CAS: 9005-35-0) is synthesized by neutralizing sodium alginate with calcium ions in an aqueous solution. Common methods include using calcium chloride or calcium hydroxide as the neutralizing agent. The reaction typically has a high yield and involves simple mixing and pH adjustment steps.

What industries use calcium alginate (CAS: 9005-35-0)?

Calcium alginate (CAS: 9005-35-0) is widely used in the pharmaceutical industry for drug delivery systems, as a matrix for controlled-release formulations, and in wound healing applications. It is also utilized in the food industry for gelling and stabilizing properties, in the textile industry for fabric softening, and in the cosmetic industry for skincare products.

What precautions should be taken when handling calcium alginate (CAS: 9005-35-0)?

When handling calcium alginate (CAS: 9005-35-0), it is important to wear appropriate personal protective equipment (PPE), such as gloves and goggles, to protect against skin and eye exposure. Store the material in a cool, dry place away from strong acids and bases. In case of spillage, use appropriate cleaning agents and ensure proper disposal. Always refer to the safety data sheet (SDS) for detailed handling instructions and emergency procedures.