Difference between revisions of "Dibromoindigo"
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* Helmut Schweppe, Schweppe color collection index and information book Comment: CI 75800, ammonia-sodium dithionite vat or sodium hydroxide-sodium dithionite vat | * Helmut Schweppe, Schweppe color collection index and information book Comment: CI 75800, ammonia-sodium dithionite vat or sodium hydroxide-sodium dithionite vat | ||
Revision as of 19:42, 30 April 2016
Description
A synthetic coal tar dye of the same composition (6,6'-dibromoindigo) as Murex purple. Dibromoindigo was developed in 1904 causing the expensive natural product to became obsolete.
Synonyms and Related Terms
6,6'-dibromoindigo; CI 75800
Other Properties
Insoluble in organic solvents and water. Unaffected by alkalis. The color is lightfast except when exposed to nitric acid or chlorine bleaches.
| CAS | 17670-06-3 |
|---|
Sources Checked for Data in Record
- Helmut Schweppe, Schweppe color collection index and information book Comment: CI 75800, ammonia-sodium dithionite vat or sodium hydroxide-sodium dithionite vat