ca33
Calcium alginate
CAS: 9005-35-0
Molecular Formula: C18H24CaO19
ca33 - Names and Identifiers
| Name | Calcium alginate |
| Synonyms | ca33 CA 33 combinace Kaltostat calginate Calginate Combinace HSDB 1911 FEMA No. 2015 Calcium alginate SODIUM ALGINATE 80-120 SODIUM ALGINATE 300-400 SODIUM ALGINATE 500-600 ALGINIC ACID CALCIUM SALT Alginic acid, calcium salt POLYMANNURONIC ACID SODIUM SALT Alginates, sodium, calcium and ammonium |
| CAS | 9005-35-0 |
| InChI | InChI=1/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 |
ca33 - Physico-chemical Properties
| Molecular Formula | C18H24CaO19 |
| Molar Mass | 1170.93 |
| Density | 2.1173 g/cm3 |
| Solubility | Practically insoluble in chloroform, ethanol, ether,water, and other organic solvents. Soluble in dilute solutions ofsodium citrate and of sodium bicarbonate and in sodiumchloride solution. Soluble in alkaline solutions or in solutionsof substances that combine with calcium. |
| Appearance | powder |
| Specific Gravity | 1.6 |
| Color | White to Gray to Brown |
| Merck | 14,242 |
| Storage Condition | room temp |
| Physical and Chemical Properties | White to light yellow brown fibrous powder or coarse powder. Almost odorless and tasteless. Insoluble in water and organic solvents. Insoluble in ethanol. Slowly dissolve in sodium polyphosphate, sodium carbonate solution and calcium compound solution. |
ca33 - Risk and Safety
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| RTECS | AZ5820000 |
| FLUKA BRAND F CODES | 3 |
| HS Code | 39131000 |
ca33 - Reference
| Reference Show more | 1. [IF=9.381] Sainan Chen et al."Pectinate nanofiber mat with high absorbency and antibacterial activity: A potential superior wound dressing to alginate and chitosan nanofiber mats."Carbohyd Polym. 2017 Oct;174:591 2. [IF=6.707] Yu-Zhuang Gao et al."In-situ preparation and properties of bio-renewable acylated sodium alginate-g-polytetrahydrofuran/Ag-NPs nanocomposites."Appl Surf Sci. 2019 Jul;483:1027 3. [IF=3.591] Jiahui Chen et al."Incorporation of Fmoc-Y nanofibers into Ca-alginate hydrogels for improving their mechanical properties and the controlled release of small molecules."New J Chem. 2018 Jun;42(12):9651-9657 4. [IF=3.098] Keshi Li et al."Folate receptor-targeted ultrasonic PFOB nanoparticles: Synthesis, characterization and application in tumor-targeted imaging."Int J Mol Med. 2017 Jun;39(6):1505-1515 5. [IF=9.381] Yuxin He et al."A double-network polysaccharide-based composite hydrogel for skin wound healing."Carbohyd Polym. 2021 Jun;261:117870 6. [IF=9.147] Wenmeng Liu et al."Effects of different hydrocolloids on gelatinization and gels structure of chestnut starch."Food Hydrocolloid. 2021 Nov;120:106925 7. [IF=6.953] Hongxia Xie et al."Biocompatible, antibacterial and anti-inflammatory zinc ion cross-linked quaternized cellulose‑sodium alginate composite sponges for accelerated wound healing."Int J Biol Macromol. 2021 Nov;191:27 8. [IF=6.953] Tong Zhao et al."Multiscale structural changes and retrogradation effects of addition of sodium alginate to fermented and native wheat starch."Int J Biol Macromol. 2020 Nov;163:2286 9. [IF=6.953] Yifan Chang et al."Improved viability of Akkermansia muciniphila by encapsulation in spray dried succinate-grafted alginate doped with epigallocatechin-3-gallate."Int J Biol Macromol. 2020 Sep;159:373 10. [IF=6.953] Anqi Li et al."Alginate-stabilized thixotropic emulsion gels and their applications in fabrication of low-fat mayonnaise alternatives."Int J Biol Macromol. 2020 Mar;146:821 11. [IF=5.263] Yansong Zhang et al."Immobilization of nitrifying bacteria in magnetic PVA–SA-diatomite carrier for efficient removal of NH4+-N from effluents."Environ Technol Inno. 2021 May;22:101407 12. [IF=4.952] Yangying Zhou et al."Preparation and stability characterization of soybean protein isolate/sodium alginate complexes-based nanoemulsions using high-pressure homogenization."Lwt Food Sci Technol. 2022 Jan;154:112607 13. [IF=4.952] Changhong Liu et al."Effects of hydroxyethyl cellulose and sodium alginate edible coating containing asparagus waste extract on postharvest quality of strawberry fruit."Lwt Food Sci Technol. 2021 Aug;148:111770 14. [IF=4.845] Liupeng Yang et al."Fabrication of sulfoxaflor-loaded natural polysaccharide floating hydrogel microspheres against Nilaparvata lugens (Stal) in rice fields."Pest Manag Sci. 2020 Sep;76(9):3046-3055 15. [IF=4.411] Tingting Cui et al."Characterization and Caco-2 Cell Transport Assay of Chito-Oligosaccharides Nano-Liposomes Based on Layer-by-Layer Coated."Molecules. 2021 Jan;26(14):4144 16. [IF=4.329] Shiying Wang et al."Indoxacarb-Loaded Anionic Polyurethane Blend with Sodium Alginate Improves pH Sensitivity and Ecological Security for Potential Application in Agriculture."Polymers-Basel. 2020 May;12(5):1135 17. [IF=3.757] Yang Wang et al."Cellulase immobilized by sodium alginate-polyethylene glycol-chitosan for hydrolysis enhancement of microcrystalline cellulose."Process Biochem. 2021 Aug;107:38 18. [IF=3.623] Pengfei Yang et al."Synthesis of Silver Nanoplates with the Assistance of Natural Polymer (Sodium Alginate) Under 0 °C."Materials. 2020 Jan;13(17):3827 19. [IF=2.926] Guo Rongxin et al."Optimization of Cellulase Immobilization with Sodium Alginate-Polyethylene for Enhancement of Enzymatic Hydrolysis of Microcrystalline Cellulose Using Response Surface Methodology."Appl Biochem Biotech. 2021 Jul;193(7):2043-2060 20. [IF=2.571] Liupeng Yang et al."Fabricated chlorantraniliprole loaded chitosan/alginate hydrogel rings effectively control Spodoptera frugiperda in maize ears."Crop Prot. 2021 May;143:105539 21. [IF=5.396] Miao Hu et al.Sodium alginate/soybean protein–epigallocatechin-3-gallate conjugate hydrogel beads: evaluation of structural, physical, and functional properties.Food Funct. 2021 Dec;12(24):12347-12361 22. [IF=4.35] Zihuan Wang et al.Structural and Emulsifying Properties of Soybean Protein Isolate–Sodium Alginate Conjugates under High Hydrostatic Pressure.Foods. 2021 Nov;10(11):2829 23. [IF=4.169] Wang Xinzhe et al."The Biocompatibility of Multi-Source Stem Cells and Gelatin-Carboxymethyl Chitosan-Sodium Alginate Hybrid Biomaterials."Tissue Eng Regen Med. 2022 Feb;:1-13 24. [IF=4.35] Peilong Liao et al."The Layered Encapsulation of Vitamin B2 and β-Carotene in Multilayer Alginate/Chitosan Gel Microspheres: Improving the Bioaccessibility of Vitamin B2 and β-Carotene."Foods. 2022 Jan;11(1):20 25. [IF=3.623] Dongwei Wei et al."Effects of Surfactants on Zein Cast Films for Simultaneous Delivery of Two Hydrophilic Active Components."Materials. 2022 Jan;15(8):2795 26. [IF=6.953] Zhenzhen Huang et al."Polysaccharides improved the viscoelasticity, microstructure, and physical stability of ovalbumin-ferulic acid complex stabilized emulsion."INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES. 2022 Jun;211:150 |
ca33 - Reference Information
| FEMA | 2015 | ALGINATES, SODIUM, CALCIUM, AND AMMONIUM |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| alginate | calcium alginate is the calcium salt of alginic acid, which is prepared from seaweed plants such as Sargassum, Laminaria, kelp, the yield of these plants in China is quite rich, and the alginate used in the paper industry is mainly sodium alginate or ammonium salt. The main functions of calcium alginate are as follows: (1) Calcium Alginate sponge: Calcium Alginate is mainly used to produce calcium alginate sponge, which can be used to stop bleeding from skin injury and wound bleeding. Calcium Alginate sponge application after the wound, that is, with the wound exudate and blood in the exchange of sodium ions and calcium ions, the release of calcium ions, and the formation of a gel layer on the surface of the wound. Due to the release of calcium ions, the formation of blood clots in the ends of the capillaries is accelerated, thereby achieving rapid hemostasis. Due to the formation of the wound surface gel layer, the wound has a certain protective effect, and the wound to maintain a certain degree of humidity, temperature, for wound healing to create a good microenvironment, promote wound healing. (2) stabilizer and gelling agent: the ability and strength of sodium alginate to form gel are related to CA2. It reacts with calcium ions in milk to form calcium alginate, which causes a series of complex reactions of milk protein. Calcium Alginate can well maintain the shape of ice cream, especially ice cream stored for a long time, and is very effective in preventing shrinkage and graying of tissues. With Ca2, pectin has a synergistic effect. (3) immobilized fermentation of brewer's yeast: The brewer's yeast is placed in sodium alginate solution dissolved in wort, and then dropped into calcium chloride solution dissolved in wort, calcium Alginate particles comprising yeast cells are formed and the yeast cells are immobilized. |
| alginic acid | alginic acid is a viscous organic acid, also known as alginic acid and alginic acid. The product was a white to light yellow-brown powder. The average molecular weight was about 240,000. Melting point> 300 °c. Slightly soluble in hot water, the viscosity of its aqueous solution is 4 times higher than that of starch, insoluble in cold water and organic solvents, slowly soluble in alkaline solution. No odor. It is widely found in the cell walls of hundreds of brown algae, such as macroalgae, Laminaria, Laminaria, cuticosa and sargassum, among which there are more laminaria (about 20% on average), most exist as calcium and magnesium alginate salts. alginic acid is a linear block polyuronic acid, consisting of a homo-polymerized α-L-glucopyranuronic acid block, the homo-polymerized β-D-mannuronic acid block and the cross-block of these two uronic acids are linked by 1,4-glycosidic bonds. It exists in the cell wall of many marine brown algae in the form of calcium, magnesium, sodium, potassium and strontium. Industrially, it is composed of macroalgae, Clau's kelp, Palm kelp, sugar kelp, kelp, wedge-based kelp (L. Octensis), Laminaria angustifolia (Laminaria angularis), Ascophyllum rodosum, lukhorn alga, Fucus melanocephala, extracted from empty stem Laminaria japonica and alga Pteridium sp. (Alaria), etc. The general extraction method is: raw seaweed after washing, with alkali digestion, alginic acid to produce soluble alkali metal salts, filtration, adding acid to precipitate alginic acid precipitation. Alginic acid can also be converted to sodium alginate, potassium alginate, Ammonium alginate, calcium alginate or other organic derivatives, collectively known as aglin. Commercial alginate refers mainly to sodium alginate. free alginic acid was a white solid. Insoluble in cold water, slightly soluble in hot water. Strong acidity, with acid resistance, but easy to heat alkali decomposition. Decarboxylation occurs by the action of concentrated hydrochloric acid. Selective adsorption of metal ions, especially Fe (II) ions. Its alkali metal salts and ammonium salts are dissolved in water to form a viscous liquid, but it is not easy to form a gel. Conversion to insoluble alginic acid gels or precipitates below pH 3. The addition of polyvalent metal ions (e. G., calcium chloride) predisposes the formation of calcium alginate gelation. Sodium salt is yellowish powder, insoluble in organic solvent,[a]D-139 °. Alginate is widely used in food, textile printing and dyeing, paper making, medicine, leather, cosmetics, rubber, coatings and water treatment industries. alginic acid is mainly used as a raw material for salts such as sodium alginate and as a drug for the production of gavage. Excipients, binders and stabilizers for tablets are also used. It is often used as a thickener and emulsifier in food and cosmetics. FIG. 1 shows the chemical structural formula of alginic acid. |
| assay | GT-7 mol/L sodium hydroxide per ml corresponds to mg of carbon dioxide or 27.38mg of calcium alginate as determined by decarboxylation. |
| toxicity | ADI is not specified (FAO/WHO,2001). GRAS(FDA,§ 184.1187,2000). |
| usage limit | FAO/WHO(1984,g/kg): green and yellow beans, sweet corn, mushrooms, asparagus, canned green peas and other 10 (products containing cream or other oils and fats); Processed cheese manufacturing 8, cream cheese 5; Shannon cheese 5 (by cream); Sardines and their products, canned mackerel and flounder 20 (in a filled soup); Pickled cucumber 500mg/woman; Canned carrot 10; cream 5 (only for pasteurized butter cream or ultra-high temperature pasteurized cream and Disinfection cream); Flavored yogurt and its products after heat treatment after fermentation 5000mg/kg; cold drink 10 (based on the final product). FDA, § 184.1187(2000): baked goods 0.002%; Alcoholic beverages, confectionery and frosting, sauce and sauce, 0.4%; Egg products, 0.6%; Grease, jam, jelly, sweet sauce, 0.5%; Gelatin products and pudding, 0.25%; Other food, 0.3%. FEMA: same as 10202, Ammonium alginate ". |
| Use | stabilizer; Thickener; Emulsifier; Gelling agent. mainly used in medicine, food additives, electrode coating, etc. |
| production method | is obtained by reacting alginic acid with calcium hydroxide or calcium carbonate. |
| category | toxic substances |
| toxicity grade | poisoning |
| Acute toxicity | intraperitoneal-rat LD50: 1407 mg/kg; Intravenous-rat LD50: 64 mg/kg |
| flammability hazard characteristics | thermal decomposition of spicy and irritating smoke |
| storage and transportation characteristics | low temperature ventilation and drying |
| extinguishing agent | water, carbon dioxide, foam, dry powder |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 21:21:28
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