This is the 7828th most frequent Portuguese word.
químico
"Químico" in English means "chemical" or "chemist," depending on context.
Here, 'químico' is used as an adjective specifying the nature of the product, indicating that it is a chemical substance.
Ele comprou um produto químico para limpar o laboratório.
He bought a chemical product to clean the laboratory.
In this sentence, 'químico' is a noun referring to a person whose profession is chemistry.
Ele é um químico especializado em compostos orgânicos.
He is a chemist specialized in organic compounds.
Here, 'químico' is used as an adjective describing the type of process, i.e., one related to chemistry.