A cutting down bleach operates by changing double bonds inside the chromophore into solitary bonds. This removes the ability from the chromophore to absorb visible gentle.[forty nine] At the end of the nineteenth century, direct white was even now the most popular pigment; but in between 1916 and 1918, chemical https://www.propanraya.com/warna-putih-untuk-interior-yang-bersih-dan-elegan-pilihan-tepat-dengan-cat-eco-emulsion-ee-4010