The Polymorphism of C.I. Pigment Yellow 5
- 1 January 1985
- journal article
- Published by Wiley in Journal of the Society of Dyers and Colourists
- Vol. 101 (1) , 21-24
- https://doi.org/10.1111/j.1478-4408.1985.tb00986.x
Abstract
Department of Physics Brunei University Uxbridge Middlesex UB8 3PHBy interpretation of X‐ray diffraction patterns it has been found that C. I. Pigment Yellow 5 (α‐[1‐hydroxy‐ethylidene\acetanilide‐α‐azo‐\2′;‐nitrobenzene]) is dimorphic, both forms being available commercially. The single‐crystal data and X‐ray powder pattern are reported for one form (termed α) and the powder pattern has been indexed from the single‐crystal unit cell dimensions. The second form (β) has only been obtained as a powder, and the powder pattern is reported. This form changes to the α‐form by recrystallisation from toluene.This publication has 2 references indexed in Scilit:
- The Polymorphism of C.I. Pigment Red 1Journal of the Society of Dyers and Colourists, 1982
- Crystal data for C.I. Pigment Yellow 1, α-(1-hydroxyethylidene)acetanilide-α-azo-(4'-methyl-2'-nitrobenzene)Journal of Applied Crystallography, 1981