I am Otto, learning about pigments. As a benchmark in the pigment industry, Lanxess has always been in a leading position. Today, I will learn about the application of Lanxess Bayferrox® series pigments in coloring chemical fertilizer. If there are any errors, please help me correct them.

When we go to purchase chemical fertilizers, we can see many different colors of chemical fertilizers, often because the chemical fertilizers have been dyed. But why do chemical fertilizers need to be dyed? Generally speaking, there are the following reasons: firstly, to enable farmers to quickly identify chemical fertilizers by color and reasonably correspond the chemical fertilizer formula that should be used for each crop at different growth stages. Secondly, the concentration of chemicl fertilizer cannot be visually observed after dilution with unstained chemical fertilizer. Thirdly, fertilizer manufacturers add very few trace elements or additives to fertilizers, and it is necessary to determine whether the mixing effect of chemical fertilizers has reached the ideal state based on the appearance of the chemical fertilizers.
 
Iron oxide pigments are harmless, so they often become dyes for chemical fertilizers.
 
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