Metanil yellow: Difference between revisions
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==Risks== | ==Risks== | ||
* | * Toxic causing nerve and enzyme damage | ||
* Illegal for food use | * Illegal for food use although often found as an adulterant for turmeric | ||
==Physical and Chemical Properties== | ==Physical and Chemical Properties== | ||
* Soluble in water | * Soluble in water | ||
* Indicator = | * Indicator = Red (below 1.2) and yellow (above 3.2) | ||
* Composition = C18H14N3NaO3S | * Composition = C18H14N3NaO3S | ||
* Molecular weight = 375.4 g/mol | * Molecular weight = 375.4 g/mol | ||
Latest revision as of 10:11, 9 May 2026
Description
A orangish-yellow synthetic monoazo dye discovered independently by C.Rumpff in 1879 and Hepp in 1882. Metanil yellow is used to dye leather, wool, silk, nylon, and paper.
Synonyms and Related Terms
Acid Yellow 36; CI 13065; CAS 587-98-4
Risks
- Toxic causing nerve and enzyme damage
- Illegal for food use although often found as an adulterant for turmeric
Physical and Chemical Properties
- Soluble in water
- Indicator = Red (below 1.2) and yellow (above 3.2)
- Composition = C18H14N3NaO3S
- Molecular weight = 375.4 g/mol
- Melting Pt = >250 C
Resources and Citations
- Wikipedia: Metanil Yellow Accessed May 2026
- PubChem: Metanil Yellow
- Colour Index International online at www.colour-index.org