Search results
Results from the WOW.Com Content Network
Nitrilotriacetic acid (NTA) is the aminopolycarboxylic acid with the formula N(CH 2 CO 2 H) 3. It is a colourless solid. It is a colourless solid. Its conjugate base nitrilotriacetate is used as a chelating agent for Ca 2+ , Co 2+ , Cu 2+ , and Fe 3+ .
As biodegradable alternatives from the class of widespread chelating agents, only nitrilotriacetic acid (NTA) is sufficiently biodegradable under certain conditions (which is suspected of being carcinogenic, though) and the chelating active amino acid derivatives β-alaninediacetic acid and methylglycine diacetic acid (Trilon M®).
.alpha.,.alpha.',.alpha.''-Trimethylaminetricarboxylic acid 2,2',2''-Nitrilotriacetic acid Acetic acid, nitrilotri- (8CI) alpha,alpha',alpha''-Trimethylaminetricarboxylic acid alpha,alpha',alpha''-trimethylaminetricarboxylic acid aminotriacetic acid Aminotriacetic acid Chel 300 chel 300 Complexon I Complexone I(R) Glycine, N,N-bis(carboxymethyl)- (9CI) hampshire nta acid Hampshire NTA acid ...
An aminopolycarboxylic acid (sometimes abbreviated APCA) is a chemical compound containing one or more nitrogen atoms connected through carbon atoms to two or more carboxyl groups. Aminopolycarboxylates that have lost acidic protons form strong complexes with metal ions.
diethylenetriamineacetic acid DTMA [1] NH 2 C 2 H 4 NHC 2 H 4 NHCH 2 COOH linear NNNO 1– Co iso-diethylenetriamineacetic acid i-DTMA [1] (NH 2 C 2 H 4) 2 NCH 2 COOH tripodal N N 2NO 1– Co Jäger's N2O2 ligand linear acacen ONNO N 2 O 2: Ni Naphthalocyanine: C 48 H 26 N 8: ring NNNN 714.79 Nitrilotriacetic acid: NTA N(CH 2 CO 2 H) 3 ...
Nitrilotriacetonitrile (NTAN) is a precursor for nitrilotriacetic acid (NTA, a biodegradable complexing agent and building block for detergents), for tris(2-aminoethyl)amine (a tripodal tetradentate chelating agent known under the abbreviation tren) and for the epoxy resin crosslinker aminoethylpiperazine.
Various carrier matrices bound to a solid resin support are on the market and these can be subsequently charged with a metal cation. Derivatives of iminodiacetic acid (IDA) and nitrilotriacetic acid (NTA) are most frequently used for this purpose, with differing matrices having certain advantages and disadvantages for various applications. [14]
Like other complexing agents in the aminopolycarboxylic acid class, trisodium N-(1-carboxylatoethyl)iminodiacetate (α-ADA) finds due to its ability to form stable chelate complexes with polyvalent ions (in particular the water hardening agents Ca 2+ and Mg 2+, as well as transition and heavy metal ions such as Fe 3+, Mn 2+, Cu 2+, etc.) use in ...