| When this compound is combined with naphthol diazo-azo dyes are produced. |
| Resorcine, like naphthol, is insoluble in water, but it can be dissolved by using either soda ash or caustic soda. |
| The second step involved adsorption of the toxicologically safe anionic dyes fast green and naphthol yellow S to the clay complexes. |
| So instead of phenol, other coal tar products such as cresol, naphthol or benzene itself may be used. |
| Various additions have been made from time to time to the naphthol bath. |
| Some of the dyes to which chromophores give a vibrant color are naphthol yellow, vat blue, congo red, and methylene blue. |
