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RECORD NUMBER: 367 OF 454

OLS Field Name OLS Field Data
Main Title Study of the Photodegradation of Commercial Dyes.
Author Porte, John J. ;
CORP Author Clemson Univ., S.C. Dept. of Textiles.
Year Published 1973
Report Number EPA-12090-EOX; 11325,; R2-73-058
Stock Number PB-221 483
Additional Subjects ( Dyes ; Decomposition reactions) ; ( Photochemical reactions ; Dyes) ; ( Industrial wastes ; Dyes) ; ( Water pollttion ; Dyes) ; Reaction kinetics ; Textile industry ;
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-221 483 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 102p
Abstract The stability of thirty-six different commercial dyes in water to visible and ultraviolet light from a carbon arc has been studied. The dyes were selected on the basis of their importance in the textile industry from six major classes: basic, acid, direct, vat, disperse and sulfur dyes. A comparison is made for two of the dyes between laboratory fading rates and fading rates in natural sunlight. Both dyes degraded at least 10 times more rapidly in artificial light than in sunlight. Some previously identified degradation products of Basic Green 4 were confirmed, and a mechanism of their formation was proposed. A significant difference in degradaton rate was observed between water-soluble dyes and pigment dispersions. This study showed that most commercial colors are resistant to photodegradation and many weeks would be required to produce appreciable dye degradation in a natural aquatic environment. (Author)
Availability Notes Paper copy available from GPO $1.25 as stock no. EP1.23/2:73-058.
NTIS Title Notes Environmental protection technology series.
PUB Date Free Form Mar 73,
Category Codes 7E; 13B; 59F; 68D
NTIS Prices PC-GPO/MF A01
Document Type NT
Cataloging Source NTIS/MT
Control Number 326563892
Origin NTIS
Type CAT