Metals classification

Salt, sodium chloride classification compound. Stainless steel, mix of iron and carbon classification mixture. Tap water, dihydrogen oxide plus impurities classification mixture. Sugar, chemical name sucrose classification compound. Vanilla extract, natural product classification mixture. Butter, natural product classification mixture. Maple syrup, natural product classification mixture. Aluminum, metal classification in pure form—element (sold commercially as a mixture of mostly aluminum with trace metals, such as magnesium). Ice, dihydrogen oxide classification in pure form—compound when made from impure tap water—mixture. Milk, natural product classification mixture. Cherry-flavored cough drops, pharmaceutical classification mixture. 

Synonyms Chrome Chromium metal Classification Metallic element Empirical Cr... 

Classification of TOW has been included in ISO 9223, Corrosion of Metals-Classification of the Environment, and has been documented by the Nordic Research Project, as shown in Table 3, which includes six TOW classes where... 

ISO 9223, Corrosion of Metals Classification of the Environment, International Standards Organization, Geneva. 

It is clear that the metal classification as essential or non-essential is strictly linked to the biological role that the elements play, precisely identifying either the biologieal parameters or the metal concentration levels involved. 

---