Hydrogen sulphide (H₂S)
A colourless, toxic gas with the characteristic odour of rotten eggs. It occurs in certain mineral waters and spring waters.
hydrogen sulphide, sulphuretted hydrogen, toxic, rotten egg, sulfides, thermal water, volcanic gases, analysis, reagent, inorganic chemistry, chemistry
A colourless, odourless, non-reactive gas, it constitutes 78.1% of Earth´s atmosphere.
A colourless, odourless gas, an important component of the atmosphere, indispensable to sustain terrestrial life.
A compound ion produced when sulphuric acid releases protons.
An odourless, yellow, solid substance, the 16th most common in the Earth´s crust. One of the best known sulphur compounds is pyrite, also known as ´fool´s...
Sulphur dioxide emission is the main cause of acid rains. It is an intermediate product in the production of sulphuric acid.
One of the oxides of sulphur, forms sulphuric acid with water.
A colourless, viscous liquid, a highly corrosive, strong acid used in several industrial processes.
Colourless, moderate acid, only known in aqueous solution.
Water is a very stable compound of hydrogen and oxygen, vital for all known forms of life. In nature it occurs in liquid, solid and gaseous state.
Colourless, odourless, lighter-than-air gas. The most common chemical element in the universe.