METANIL YELLOW AR
METANIL YELLOW AR
Description
In analytical chemistry, it is used as a pH indicator and it has a color change from red to yellow between pH 1.2 and 3.2.
Although it is an unpermitted food dye, because of its bright yellow color, Metanil
Yellow has been used as an adulterant in turmeric powder and arhar dal, particularly in India.
Technical Bulletin