Alizarin Red S
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A chemical indicator used to detect metallic aluminum. Alizarin Red S is composed of sodium alizarin sulfonate. It reacts with aluminum ions to form a pink-red complex.
Synonyms and Related Terms
sodium alizarin sulfonate
- Harmful by ingestion.
- Contact may cause irritation.
- Fisher Scientific: SDS
Physical and Chemical Properties
Tin and lead produce a dark red complex
Resources and Citations
- For a description of test procedures see: N.Odegaard, S.Carroll, W.Zimmt, Material Characterization Tests for Objects of Art and Archaeology Archetype Publications, London, 2000, p. 36.
- Sigma Dyes, Stains and Natural Pigments, Infrared Library, Nicolet, 1991-1995