[article]
| Titre : |
Preparation of some coloured chelates of 2-mercapto-4-picoline-N-oxide and their applications as new pigments |
| Type de document : |
texte imprimé |
| Auteurs : |
A. Mirhabibi, Auteur ; R. Aghababazadeh, Auteur ; Mohammad Edrissi, Auteur |
| Année de publication : |
2004 |
| Article en page(s) : |
p. 285-287 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Chélates
Ligands
Pigments -- Synthèse
Pigments organiques
|
| Index. décimale : |
667.2 Colorants et pigments |
| Résumé : |
The sulphur-containing ligand 2-mercapto-4-picoline-N-oxide (MPN) was prepared from 2-bromo-4-picoline by peracetic oxidation and the reaction of its oxidation product with thiourea, and finally hydrolysis with sodium hydroxide solution. The preliminary reaction of MPN with metal ions showed that from 25 common metal ions examined, only Fe(III) and Cu(II) gave 3:1 and 2:1 stable insoluble and intense coulored chelates which were violet and green respectively. Al(III), Y(III), Ce(IV), Th(IV), Pb(II), Mn(II), Mg(II), Sr(II), Ba(II) and Ca(II) gave no precipitate. Hg(II), Ga(III), Tl(II), Bi(III), W(IV), Zr(IV), Zn(II) and Ag(I) gave whites. Ti(IV), V(V), Co(II), Ni(II) and Pd(II) gave pale coloured chelates. The reaction of MPN with Fe(III) and Cu(II) ions were quantitative. Both complexes had good pigment properties and should prove suitable to plastics, inks, board markers and textile printing. |
| Note de contenu : |
- Table 1 : The results of melting point measurements and elemental microanalysis
- Table 2 : Quantitative precipitation of Cu (II) and iron (III) by MPN
- Table 3 : ε values, bulk densities and oil absorption of MPN chelates
- Table 4 : Colorimetric data for green and violet pigments. (CIE lab = l*a*b* with source D65 and observer 10°) |
| DOI : |
10.1007/BF02699678 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/BF02699678.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5450 |
in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 87, B4 (12/2004) . - p. 285-287
[article]
|
Aller sur edunet
Accueil
Preparation of some coloured chelates of 2-mercapto-4-picoline-N-oxide and their applications as new pigments in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 87, B4 (12/2004)
