Alizarin Red S
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
Tin and lead produce a dark red complex
Hazards and Safety
Harmful by ingestion. Contact may cause irritation.
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.
Sources Checked for Data in Record
- N.Odegaard, S.Carroll, W.Zimmt, Material Characterization Tests for Objects of Art and Archaeology, Archetype Publications, London, 2000
- Sigma Dyes, Stains and Natural Pigments, Infrared Library, Nicolet, 1991-1995