Side reactions from the reduction of azo dyes with dithionite

Journal of the Society of Leather Technologists and Chemists

Volumn 80, Issue 1, 1996, Pages 1-5

  Puntener A ^a   Fennen, J ^a   Page, C T ^a  

^a CIBA GEIGY LTD   (Switzerland)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001787683     PISSN: 01440322     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (13)

1. Sykes, R., Leather, 1995, 197 (No. 4643), 47.
2. Fahne, D., Textilveredlung, 1995, 30, 104.
3. Wiesenfeldt, M., Proc. XXIII Congress IULTCS, Friedrichshafen, Germany, 1995, No. 24.
4. Püntener, A., Mäusezahl, D. and Page, C., J. Soc. Leather Technol. Chem., 1993, 77, 1.
5. Tomaselli, M., Cozzolino, A. and Calemme, I., Proc. XXII Congress IULTCS, Porto Allegre, Brazil, 1993, 539.
6. Muralidharan, D. and Sundra Rao, V. S., J. Soc. Leather Technol Chem., 1994, 78, 139.
7. Nickolaus, G., Proc. XXIII Congress IULTCS, Friedrichshafen, Germany, 1995, No. 48.
8. Kralicek, P., Chimia, 1995, 49, 222.
9. TÜV Rheinland, Germany, Analytical method for the detection of amines in the classes MAK III A1/III A2 and EU C1/C2 as cleavage products of azo dyes in Consumer Goods, QSA 2.516.217, 1 Sept. 1994.
10. 1) chloroform/methanol 95:5 2) n-butyl acetate/toluene 30:70 3) chloroform/ethyl acetate/acetic acid 60:30:10. Source: PFI, Pirmasens, Germany.
11. Koga, G. and Koga, N., in The chemistry of the Hydrazo, Azo and Azoxy Groups p. 861 (Ed. S. Patai), Interscience Publishers, London (1975).
12. Page, C. T., Asia Pacific Leather Times, March 1995, 113.
13. TÜV Rheinland, Germany, Banned azo dyes following the 2nd, 3rd and 4th amendments to the German Consumer Goods Act, Information Seminar, Cologne, 8th Oct. 1995.