Ingredients --
Tetrasodium etidronate
Chemical Formula:
tetrasodium etidronate
Synonyms
Tetrasodium (1-hydroxyethylidene) bisphosphonate
Description
Tetrasodium etidronate
and the related
Disodium etidronate
disodium etidronate
are chelating agents and sequestering agents that
attach to metal ions to keep them from reacting with other compounds
in a mixture, and to prevent them from precipitating out of solution
as insoluble scums.
Uses
Tetrasodium etidronate is used as a water softener in soaps to prevent soap scums and bathtub rings by locking up the calcium and magnesium in the water.
Compounds with similar functions are sodium carbonate, sodium edta, sodium citrate, phosphoric acid, and tetrasodium pyrophosphate.
tetrasodium etidronate: InChI=1/C2H8O7P2.4Na/c1-2(3,10(4,5)6)11(7,8)9;;;;/h3H,1H3,(H2,4,5,6)(H2,7,8,9);;;;/q;4*+1/p-4/fC2H4O7P2.4Na/q-4;4m
sodium citrate: InChI=1/C6H8O7.2Na/c7-3(8)1-6(13,5(11)12)2-4(9)10;;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;/q;2*+1/p-2/fC6H6O7.2Na/h11H;;/q-2;2m
tetrasodium edta: InChI=1/C10H16N2O8.4Na/c13-7(14)3-11(4-8(15)16)1-2-12(5-9(17)18)6-10(19)20;;;;/h1-6H2,(H,13,14)(H,15,16)(H,17,18)(H,19,20);;;;/q;4*+1/p-4/fC10H12N2O8.4Na/q-4;4m
phosphoric acid: InChI=1/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)/f/h1-3H
pentasodium pentetate: InChI=1/C14H23N3O10.5Na/c18-10(19)5-15(1-3-16(6-11(20)21)7-12(22)23)2-4-17(8-13(24)25)9-14(26)27;;;;;/h1-9H2,(H,18,19)(H,20,21)(H,22,23)(H,24,25)(H,26,27);;;;;/q;5*+1/p-5/fC14H18N3O10.5Na/q-5;5m
By Simon Quellen Field
