Environmental impact of pharmaceuticals and personal care products mechanism occurs: (CH)2CO + hv → CH + CHCO CHCO → CH+ CO CH+ (CH)2CO → CH4 + CH2COCH 2CH → C2H6 A second pathway that nail polish remover can enter in the atmosphere is reacting with hydroxyl radicals. When acetone reacts with hydroxyl radicals, its main product is methylglyoxal. Methylglyoxal is an organic compound that is a by-product of many metabolic pathways. It is an intermediate precursor for many advanced glycation end-products, that are formed for diseases such as diabetes or neurodegenerative diseases. The following reaction occurs: (CH)2CO + ·OH → CHC(O)OH + ·CH CHC(O)OH + ·CH→ CHC(O)COH +
Shoe polish and polishing properties after solvent has evaporated. Solvents are selected to match the waxes. About 70% of shoe polish is solvent. A variety of solvents are used including naphtha. Turpentine, although more expensive, is favored for its "shoe polish odor." Dyes make up the final 2-3% of the polish. A traditional dye is nigrosine, but other dyes (including azo dyes) and pigments are used for oxblood, cordovan, and brown polishes. Owing to their high content of volatile solvents, wax-based shoe polish harden after application, while retaining its gloss. Poorly blended polishes are known to suffer from blooming, evidenced by the