I would like to get 1 gram of the subject compound (solid). The smallest amount I can find is 10g, which would last me several lifetimes. I can
purchase, or maybe trade some EDTA-Na4. You can U2U me or my email is cwamelotti@att.net ThanksCharlieA - 9-5-2016 at 15:35
I'm still looking for this chemical. I would like to trade/purchase 0.5-1 gram. I am offering to trade 10-20 grams of Na4EDTA, or will pay
US$2 + mailing for 1 gram.Loptr - 9-5-2016 at 16:20
Interesting. What is your intended use? Also, I have seen the EDTA sodium salt around and always wondered what it is used for... Could you enlighten
me?
Wait... I was thinking of something else. The eriochrome black t is an indicator, right?
[Edited on 10-5-2016 by Loptr]j_sum1 - 9-5-2016 at 16:40
Cool. I had never heard of complexometric titrations before.
I have all the EDTA I could possibly need -- the disodium salt not the tetra sodium salt. This sounds like an interesting process. If you locate
some then I will gladly buy some from you. If we had enough takers, perhaps you could buy the 10g and split it four or five ways.Ozone - 10-5-2016 at 03:48
I prefer calmagite, but both can be found on Ebay:
Eriochrome can be found, too. But, as you say, in rather large lots (10-25g).
O3j_sum1 - 10-5-2016 at 04:49
It doesn't seem that expensive. Even if 10 grams is more than you need, it might be worth blowing a few bucks on it. http://www.ebay.com/itm/261822633244
I was going to suggest sharing a purchase, but by the time you factor in some additional postage between the US and here, there isn't really a lot to
be saved.
U2U me if you want to arrange something.Mailinmypocket - 10-5-2016 at 12:32
U2U sent, got quite a bit.CharlieA - 11-5-2016 at 08:59
@Loptr: Sorry for the slow response. I guess you've already discovered that EBT is an indicator used in complexometric titrations of many metals,
especially water hardness (Ca+Mg).
@j_sum1: With luck, I may have found 1-2g, which should serve my needs nicely. Where are you located (not in Kansas, USA, I presume)?
@O3: Thanks for the information. I was not aware of that indicator. I've only been out of the loop for 30 years or so, so I have much to
relearn and learn.Mailinmypocket - 12-5-2016 at 07:00
