1633-00-7

Basic information

• Product Name: 1,6-DIAMINOHEXANE-N,N,N',N'-TETRAACETIC ACID
• Synonyms: 1,6-Diaminohexane-N,N,N',N'-tetraacetic Acid;HEXAMETHYLENEDINITRILOTETRAACETIC ACID;HEXAMETHYLENEDIAMINETETRAACETIC ACID;1,6-DIAMINOHEXANE-N,N,N',N'-TETRAACETIC ACID;1,6-HEXAMETHYLENEDIAMINE-N,N,N',N'-TETRACETIC ACID;Glycine, N,N'-1,6-hexanediylbis[N-(carboxymethyl)-;Hexamethylenediamine-N,N,N',N'-tetraacetic acid;Hexamethylenediamine-N,N,N',N'-tetracetic acid
• CAS NO: 1633-00-7
• Molecular Formula: C₁₄H₂₄N₂O₈
• Molecular Weight: 348.35
• EINECS: 216-642-1
• Product Categories: Analytical Chemistry;Chelating Reagents;Complexones;EDTA Analogs
• Mol File: 1633-00-7.mol
• Article Data: 2

Chemical Properties

• Melting Point: 232-236 °C (dec.)(lit.)
• Boiling Point: 482.73°C (rough estimate)
• Flash Point: 335.5°C
• Appearance: /
• Density: 1.2294 (rough estimate)
• Refractive Index: 1.4590 (estimate)
• Solubility: almost transparency in 1mol/L NaOH
• PKA: 1.55±0.10(Predicted)
• BRN: 1716834
• CAS DataBase Reference: 1,6-DIAMINOHEXANE-N,N,N',N'-TETRAACETIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: 1,6-DIAMINOHEXANE-N,N,N',N'-TETRAACETIC ACID(1633-00-7)
• EPA Substance Registry System: 1,6-DIAMINOHEXANE-N,N,N',N'-TETRAACETIC ACID(1633-00-7)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• Hazardous Substances Data: 1633-00-7(Hazardous Substances Data)

Usage

Chemical Properties

white to off-white crystalline powder

Upstream product

• 124-09-4 1,6-Hexanediamine 
• 79-11-8 chloroacetic acid 

Relevant articles and documents

The effect of co-precipitation on cadmium(II) adsorption on hydrous aluminium(III) hydroxide in the presence of a range of chelates

The adsorption of cadmium(II) on freshly precipitated aluminium(III) hydroxide in the presence of a range of chelates has been investigated. By precipitating the metal, chelate and adsorbent together it is possible to change the pH variation of the metal-complex adsorption from anionic, "ligand-like", binding to cationic binding. This is a general phenomenon and is explained by the formation of a ternary Al-O-Cd-L surface species. As a consequence of the preparation method, the pH edge is found to shift to lower pH values in the presence of the chelate which gives rise to an apparent increase in adsorption of Cd2+. This increase is, in general, most pronounced at [chelate]/[metal] > 1. Computer modelling shows that the observed trends result from the competition between Al-O-Cd-L and Al-L for the available aluminium(III) binding sites. The enhanced adsorption in the presence of phenylenediaminetetraacetate is anomalous since it is observed at a [chelate]/[metal] ≈ 0.1 and cannot be interpreted by the simple competition model.