PubChem is the world's largest collection of freely accessible chemical information. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and …

Interactive periodic table with up-to-date element property data collected from authoritative sources. Look up chemical element names, symbols, atomic masses and other properties, …

Proposed to be an element by Carl Wilhelm Scheele in 1774, manganese was discovered by Johan Gottlieb Gahn, a Swedish chemist, by heating the mineral pyrolusite (MnO 2) in the …

Explore how atomic radius changes with atomic number in the periodic table of elements via interactive plots.

Chemical element, Mercury, information from authoritative sources. Look up properties, history, uses, and more.

Manganese (Mn) is essential to iron and steel production by virtue of its sulfur-fixing, deoxidizing, and alloying properties.Steelmaking, including its ironmaking component, accounts for most …

Explore how density changes with atomic number in the periodic table of elements via interactive plots.

Adults: Sudden deaths, stroke, and myocardial infarction have been reported in adults taking stimulant drugs at usual doses for ADHD. Although the role of stimulants in these adult cases …

Conscious rats with bile duct and duodenal catheters were given isotopically labelled anthracene (1 mg in 0.2 mL in corn oil, corresponding to 3.7 mg/kg), and the recovery of radioactivity in …

An attractive and highly valued metal, gold has been known for at least 5500 years. Gold is sometimes found free in nature but it is usually found in conjunction with silver, quartz (SiO 2), …