CharlieA
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Eriochrome black T wanted
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 Thanks
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CharlieA
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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.
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Loptr
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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]
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j_sum1
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https://en.wikipedia.org/wiki/Eriochrome_Black_T
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.
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Ozone
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I prefer calmagite, but both can be found on Ebay:
http://www.ebay.com/itm/HACH-calmagite-analytical-grade-825-...
Eriochrome can be found, too. But, as you say, in rather large lots (10-25g).
O3
-Anyone who never made a mistake never tried anything new.
--Albert Einstein
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j_sum1
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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.
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Mailinmypocket
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U2U sent, got quite a bit.
Note to self: Tare the damned flask.
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CharlieA
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@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.
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Mailinmypocket
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I just finished digging it out of storage and actually have a bit more than I thought. If anyone else wants some send me a U2U.
Note to self: Tare the damned flask.
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Mailinmypocket
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Before this goes back in storage. U2U if you want some. $10/first gram including postage US/Canada. $5/g afterwards.
[Edited on 15-5-2016 by Mailinmypocket]
Note to self: Tare the damned flask.
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