Direct presents a pale yellow colour. Silver oxide offers a everlasting yellow stain. Finely divided vegetable charcoal additional to a soda–lime glass gives a yellow colour. Selenites and selenates give a pale pink or pinkish yellow. Tellurium seems to offer a pale pink tint. Nickel which has a potash–lead glass https://aluminiumslidingdoor71367.activoblog.com/41445018/aluminium-sliding-door-an-overview