Calcium sodium EDTA

Pentasodium pentetate, tetrasodium etidronate, and tetra-sodium EDTA are added as water softeners and to protect the dyes and perfumes from the effects of metal ions in the mixtures. These compounds lock up calcium and magnesium in the water, preventing them from reacting with the soap to form insoluble soap scum. 

A common form of EDTA used as a preservative is calcium disodium EDTA (CaNa2EDTA). What metals will this form of the sequestrant scavenge effectively The dissolution of the solid will yield calcium ions, sodium ions, and the EDTA anion. Any metal more effectively complexed than calcium will be readily scavenged, including all ions listed in Table 9.1 except silver (Ag+) and magnesium (Mg2+). (In the absence of the calcium counterion, as in the case of the acid form of EDTA, chelation of calcium in the body can occur. In fact, EDTA administered orally is an FDA-approved treatment for calcium deposits in the bloodstream that lead to cardiovascular disease.) Citric acid (Fig. 9.3.3) is another sequestrant of metal ions in foodstuffs. 

EDTA is marketed in its salt forms such as sodium EDTA or calcium EDTA. EDTA has industrial and medical uses as a chelating agent. Much of its utility is related to the fact that... 

Rapid intravenous injection of the sodium salt of EDTA depletes blood calcium levels and produces hypocalcaemic tetany, but, carefully administered, this agent can be used to treat hypercalcaemia and to overcome digitalis-induced arrhythmia by adjusting the Ca2+/K+ balance61). The ready availability of calcium ion from extracirculatory stores enables slow (drip) infusion of sodium EDTA without untoward effects. Continued over several days, calcium is mobilised from bone and calcium EDTA is excreted in the urine but plasma calcium levels are not greatly affected62). Although it has been little explored, drip infusion of sodium EDTA,... 

Preservatives including but not limited to the following within these maximum amounts in percent by weight of the finished food Sorbic acid, benzoic acid and their sodium, potassium, and calcium salts, individually, 0.1 percent, or in combination, 0.2 percent, expressed as the acids calcium disodium EDTA, 0.0075 percent propyl, octyl, and dodecyl gallates, BHT, BHA, ascorbyl palmitate, ascorbyl stearate, all individually or in combination, 0.02 percent stearyl citrate, 0.15 percent isopropyl citrate mixture, 0.02 percent. 

The term log in Equation 13.44 is equal to — plon, and so ion-selective electrodes (ISE) can be used to monitor changes in pM during a titration. For example, a cation-selective glass electrode that is sensitive to silver ion can be used to follow changes in pAg in titrations with silver nitrate. A calcium-sensitive electrode can be used for the titration of calcium with EDTA. The electrode should not respond to sodium ion since the disodium salt of EDTA is usually used. If the electrode responds to a second ion in the solution whose activity remains approximately... 

Acetic acid, (ethylene dinitrilo) tetra-, calcium disodium salt. See Calcium disodium EDTA Acetic acid, (ethylenedinitrilo) tetra-, sodium salt. See Sodium ferric EDTA Acetic acid, (ethylenedinitrilo) tetra-, tetrasodium salt. See Tetrasodium EDTA Acetic acid, (ethylenedinitrilo) tetra-, trisodium salt. See Trisodium EDTA Acetic acid, ethylene ether. See Vinyl acetate Acetic acid, ethyl ester. See Ethyl acetate Acetic acid 2-ethylhexyl ester. See 2-Ethylhexyl acetate... 

Disodium-4,4 -bis (2-sulfostyryl) biphenyl. See Disodium distyrylbiphenyl disulfonate Disodium butanedioate. See Sodium succinate Disodium calcium ethylenediaminetetraacetate. See Calcium disodium EDTA Disodium caproamphodiacetate CAS 54849-16-0 68298-22-6 70750-05-9 EINECS/ELINCS 259-373-5 269-548-8 Synonyms Caproamphocarboxyglycinate Disodium N-[2-(carboxylatomethoxy) ethyl]-N-[2-[(1-oxodecylj amino] ethyl] glycinate Classification Organic compd. 

Sodium calcium edetate. See Calcium disodium EDTA... 

Calcium disodium EDTA Calcium liqnosulfonate Calcium stearoyl lactylate Carrageenan (Chondrus crispus) Cellophane Dibutyl phthalate Dibutyl sebacate Dicyclohexyl phthalate Dihexyl sodium sulfosuccinate Dimethicone Dioctyl sodium sulfosuccinate Dipropylene glycol Edetic acid EO/PO block polymer or copolymer Ethylene/acrylic acid copolymer Ethylene dioleamide Ethylene distearamide Ferric chloride Ferrous ammonium sulfate Furcelleran... 

Sodium benzoate preservative, deodorants Bromochlorophene Lichen (Usnea barbata) extract Phytosphingosine preservative, detergents o-Phenylphenol 3,4,4 -Trichlorocarbanilide preservative, dextrins Pentachlorophenol preservative, diagnostic medicinals Sodium azide preservative, disinfectants Calcium disodium EDTA preservative, disinfectants hospitals Sodium p-chloro-m-cresol... 

Bromo-2-nitropropane-1,3-diol Calcium disodium EDTA p-Chloro-m-cresol Dichlorophene Diiodomethyl tolylsulfone Dimethyl oxazolidine Laurtrimonium chloride Pine (Pinus palustris) oil Poly (hexamethylenebiguanide) hydrochloride Sodium 2-mercaptobenzothiazole 2-Thiocyanomethylthiobenzothiazole Tributyltin oxide 2,4,6-Trichlorophenol preservative, timber Zinc arsenite preservative, tissues... 

Calcium disodium EDTA Calcium oxide Disodium EDTA Pentasodium triphosphate Sodium acid pyrophosphate Sodium hexametaphosphate Sodium metasilicate Sodium phosphate dibasic dodecahydrate Sodium phosphate dibasic heptahydrate Sodium phosphate tribasic Sodium sulfate Sucrose scald agent, hog/poultry Sodium lauryl sulfate... 

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