Can't find Versene "T"

Letter 842

Can't find Versene "T"

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Hi everyone. I have a problem finding Versene "T". Even Dow Chemicals doesn't know what that versene is. It is from an old formulation for high throw (1mil/hr) electroless copper plating bath. Can you help me find it or replace it.

Thanks in advance,

Rolland Jones
ones Electronics

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Versene is EDTA. It is a commercial name. I do not know what the T stands for but there are a lot of chemicals in this family. Degussa manufactures EDTA by the name of Trilon, they may help you in finding out what the T stands for. Sara

Sara Michaeli
chemical process supplier
Israel

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I just came across a ref. in regards to Versene "T". It is a mixture of EDTA and TEA.

Thanks to all,

Rolland Jones
Jones Electronics

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I think the Hampton Chemical Co. in Nashua, NH used to produce this product. I do not know if they are still in business or were bought out by someone else.

Steve Rimsa

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Not so much a contribution as another question - I'm trying to find out which of the many possible EDTA salts Versene 220 is.

Anyone have any ideas?

Thanks in advance

Alan Craggs

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Langford and Parker, Analysis of Electroplating and Related Solutions, 4th Edition, Robert Draper, Teddington, 1971, has "EDTA.... it appears in industry under a series of trivial but useful synonyms such as Versene, Sequestrene, Trilon B, Chelaton 3 and Complexone III....."

So it may be just diamino-ethane tetra-acetic acid, disodium salt, (but it still could be a mixture). Have you tried searching for Versene in a search engine such as Lycos?

Tom Pullizzi
platronica.com
Falls Township, PA

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Versene 220 is same as Hampene 220 : 99%+ tetrasodium salt of EDTA.

James Chunn
- Theodore, Alabama

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Hey everyone I have a question about this. Im working with EDTA and want to find a way to break it down into its origanal components like with an oxidation reduction, but i dont know what to use or how to do it.

Thanks

Katie Jones
- seattle wa USA

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What formulation of EDTA is used in chelation therapy for metal toxicity and arterial disease?

Heidi Kult
- St. Paul, Minnesota

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Hello, Heidi. I guess you found this page by searching for specific terms in a search engine, rather than by coming through 'the front door' of our metal finishing site. This is a topic our readers probably wouldn't know about, I'm afraid. Sorry.

Ted Mooney, P.E.
finishing.com
Brick, New Jersey

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I would like to know will sequestring agents such has versene help in avoid iron contamination in nickel plating baths. This is being a serious problem.

bob jonna
- India

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