A reducing bleach performs by converting double bonds within the chromophore into single bonds. This eradicates the flexibility of the chromophore to absorb obvious light-weight.[49] At the end of the 19th century, lead white was nevertheless the most popular pigment; but concerning 1916 and 1918, chemical providers in Norway and https://www.propanraya.com/warna-putih-untuk-interior-yang-bersih-dan-elegan-pilihan-tepat-dengan-cat-eco-emulsion-ee-4010