impure substances
[ɪmˈpjʊr ˈsʌbstənsɪz]
nounpl: impure substances
substâncias impuras
1. Materials or compounds that contain unwanted or foreign elements mixed with the primary component, reducing purity
The water contained impure substances such as minerals and bacteria.
A água continha substâncias impuras como minerais e bactérias.
2. In chemistry, compounds that are not in their pure elemental or molecular form due to contamination
The laboratory rejected the impure substances that failed quality control tests.
O laboratório rejeitou as substâncias impuras que falharam nos testes de controle de qualidade.
3. Materials containing adulterants or contaminants that compromise their intended use or effectiveness
Pharmaceuticals must be free from impure substances to ensure patient safety.
Os produtos farmacêuticos devem estar livres de substâncias impuras para garantir a segurança do paciente.
This term is primarily used in technical, scientific, and industrial contexts in both Brazilian Portuguese and English-speaking countries. In Brazil, quality control and pharmaceutical industries frequently use this terminology when discussing manufacturing standards and product safety regulations.
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