alizarin yellow


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alizarin yellow

[ə′liz·ə·rən ′yel·ō]
(materials)
A dye useful as an acid-base indicator; solutions change color from yellow (acid) to purple (basic) in the pH range 10.1 to 12.0.
References in periodicals archive ?
Keywords: Metal-organic complex; Alizarin Yellow R; Crystal structure; Recrystallization; tetramer.
Herein, a new sodium Alizarin Yellow R structure Na2(C13H8N3O5)2(H2O)6 has been observed in solution by accident when 2-hydroxy-5-((4- nitrophenyl)azo) benzoic acid mono sodium salt was used as ligands.
The band appearing at 281 nm may arise from p p transition of the heterocyclic moiety and aromantic rings [17, 18].As the novel yellow tetramer crystal has been obtained, the differences in properties and performances between the new Alizarin Yellow R crystal and Alizarin Yellow R powder will be discussed in our following research.
Synthesis, Recrystallization and Structural Characterization of a Novel Sodium Structure Na2(C13H8N3O5)2(H2O)6
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