Guest guest Posted February 19, 2001 Report Share Posted February 19, 2001 Tamara, The two chelating agent are used at different pHs. Disodium is used at pH up to 8.5 and tetra is used above 8.5. Young KY Labs Innovators of Fine Personal Care Products www.kylabs.com EDTA... Hi, Are Disodium EDTA and Tetrasodium EDTA interchangeable in a formulation as a chelating agent? I'm working on a sprayable non-alcohol cologne formulation using BFGoodrich's Pemulen TR-2. It calls for Disodium EDTA to be added, after neutralizing the solution, to decrease the viscosity and enable it to be sprayable. I only had Tetrasodium EDTA, and although I added it at the maximum recommended rate, the formulation remained too viscous for my liking. The directions on the BFGoodrich site state to be careful not too add to much EDTA or the emulsion could break, so I was hesitant to add more...... ~Tamara~ Post message: Cosmeticinfo Subscribe: Cosmeticinfo-subscribe Unsubscribe: Cosmeticinfo-unsubscribe List owner: Cosmeticinfo-owner URL to this page: http://groups.yahoo.com/group/Cosmeticinfo Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 19, 2001 Report Share Posted February 19, 2001 Thanks for the help Tamara (who's heading back to the drawing board......) Young wrote: > Tamara, > > The two chelating agent are used at different pHs. Disodium is used at pH up > to 8.5 and tetra is used above 8.5. > Quote Link to comment Share on other sites More sharing options...
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