Experiment cobalt plate--observing the color of the flame through the cobalt sheet can determine whether it contains ,,chemistry cobalt glass
Cobalt glass plate--the addition of gives the -violet color, which is very beautiful,labs experiment tool
Flame color reaction accessory--the special is an indispensable object in the chemical flame color reaction, and is a helper for your experiments,,chemistry filter glass
Labs experiment glass--it is also used in many places in the industry, such as cement plants, steel plants, and industries,filter glass
Cobalt glass--when observing the flame color reaction of , it is necessary to pass through the blue cobalt glass, because is not pure, and some impurities such as sodium are often mixed in,experiment device