what is the chemical formula of magnesium sulphate
Magnesium sulfate Magnesium sulfate is an inorganic salt with the formula MgSO4(H2O)x where 0≤x≤7. It is often encountered as the heptahydrate sulfate mineral epsomite (MgSO4·7H2O), commonly called Epsom salt. The overall global annual usage in the mid-1970s of the monohydrate was 2.3 million tons, of which the majority was used in agriculture.[1]
Sulfuric acid Sulfuric acid (alternative spelling sulphuric acid) is a mineral acid with molecular formula H2SO4. It is a colorless odorless syrupy liquid that is soluble in water, in a reaction that is highly exothermic.[4]
Phosphate-buffered saline There are many different ways to prepare PBS solutions (one of them is DPBS, or Dulbecco's phosphate-buffered saline, which has a lower phosphate concentration than standard PBS[1]). Some formulations do not contain potassium and magnesium, while other ones contain calcium and/or magnesium.[2]
Sulfate The conjugate base of sulfuric acid (H2SO4)—a dense, colourless, oily, corrosive liquid—is the hydrogen sulfate ion (HSO− 4), also called the bisulfate ion.[b] Sulfuric acid is classified as a strong acid; in aqueous solutions it ionizes completely to form hydronium ions (H3O+) and hydrogen sulfate (HSO− 4). In other words, the sulfuric acid behaves as a Brønsted–Lowry acid and is deprotonated. Bisulfate has a molar mass of 97.078 g/mol. It has a valency of 1. An example of a salt containing the HSO− 4 group is sodium bisulfate, NaHSO4. In dilute solutions the hydrogen sulfate ions also dissociate, forming more hydronium ions and sulfate ions (SO2− 4). The CAS registry number for hydrogen sulfate is 14996-02-2.