Metanil yellow: Difference between revisions
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== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
Acid Yellow 36; CI 13065; CAS 587-98-4 | |||
==Risks== | |||
* Potentially causes nerve damage | |||
* Illegal for food use; but sometimes used as an adulterant for turmeric | |||
==Physical and Chemical Properties== | |||
* Soluble in water | |||
* Indicator = color change from red to yellow between pH 1.2 and 3.2. | |||
* Composition = C18H14N3NaO3S | |||
* Molecular weight = 375.4 g/mol | |||
* Melting Pt = >250 C | |||
==Resources and Citations== | ==Resources and Citations== | ||
* Wikipedia: [https://en.wikipedia.org/wiki/Metanil_Yellow Metanil Yellow] Accessed May 2026 | |||
* PubChem: [https://pubchem.ncbi.nlm.nih.gov/compound/Metanil_yellow Metanil Yellow] | |||
* Colour Index International online at www.colour-index.org | * Colour Index International online at www.colour-index.org | ||
Revision as of 10:06, 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
- Potentially causes nerve damage
- Illegal for food use; but sometimes used as an adulterant for turmeric
Physical and Chemical Properties
- Soluble in water
- Indicator = color change from red to yellow between pH 1.2 and 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