2006-08-28 14:58:41 · 8 answers · asked by james w 3 in Science & Mathematics ➔ Chemistry
Na2-EDTA, disodium ethylene diamine tetra-acetic acid, is a "chelating agent". It is able to "bind" divalent metal ions, such as calcium, magnesium, cobalt, copper, etc. It is a non-selective chelator, that is why it binds different metal ions. As opposed to EGTA or o-phenanthrolene which are ion specific.
2006-08-28 15:05:09 · answer #1 · answered by Gene Guy 5 · 0⤊ 0⤋
If I remember correctly, EDTA is an acronym for something longer A, standing for Acid.
EDTA compounds in food are used as a stabilizer so the food does not go bad or change colour as quickly. It is found in wheat and cereals.
I remember using an EDTA compound (It might have been calcium disodium) as an indicator during a titration of metal concentration.
2006-08-28 15:07:19 · answer #2 · answered by borscht 6 · 0⤊ 0⤋
DISODIUM EDTA
Specialty Definition: EDTA
EDTA is the chemical compound ethylene diamine tetraacetic acid. EDTA or its disodium salt is a chelating agent, forming coordination compoundss with most divalent (or trivalent) metal ions, such as calcium (Ca2+) and magnesium (Mg2+).
Uses
EDTA is used extensively in the laboratory to scavenge metal ions, for metal ion titrations, and in buffers. It is also used to determine water hardness and as a water softener.
EDTA is used in medicine as an anticoagulant, in the food industry as a preservative, and in lots of other stuff (even soaps, sun creme, etc). A somewhat controversial therapy, called chelation therapy has evolved around metal scavengers such as EDTA.
2006-08-28 20:45:38 · answer #3 · answered by hamdi_batriyshah 3 · 0⤊ 0⤋
First of all, you have misspelled it.
It is calcium disodium EDTA.
EDTA is ethylenediaminetetraacetic acid, it is a chelating agent.
It can chelate calcium (Ca2+) from solutions, and when it does so forms the calcium salt of disodium EDTA.
This compound is used in chelation therapy, such as in heavy metal intoxication to remove heavy metals from the bloodstream.
2006-08-28 15:05:07 · answer #4 · answered by ♪ ♫ ☮ NYbron ☮ ♪ ♫ 6 · 2⤊ 0⤋
you're gonna want to check your spelling. it's calcium disodium EDTA you're looking for and its a chelator and preservative. it goes after heavy metals and keeps things from spoiling quickly. it's not gonna hurt you any.
2006-08-28 15:16:11 · answer #5 · answered by shiara_blade 6 · 0⤊ 0⤋
I have no idea but Calcium Disodium EDTA
It's a chelating agent used in certain cardio vascular diseases.
2006-08-28 15:04:53 · answer #6 · answered by Anonymous · 0⤊ 0⤋
It's a chemical. Find out about it at Sigma-Aldrich:
2006-08-28 15:07:39 · answer #7 · answered by Mr. E 5 · 0⤊ 0⤋
are u james walker and how old r u?
2006-08-29 13:12:23 · answer #8 · answered by Anonymous · 0⤊ 0⤋