Mag Excel Exports Private Limited supplies Sulphuric Acid with Precise pH Value. Mag Excel Exports Private Limited has achieved ISO 9001:2000 certifications. Sulphuric Acid with Precise pH Value is a strong mineral acid and is soluble in water at all concentrations. Sulphuric Acid with Precise pH Value is a constituent of acid rain that is formed by atmospheric oxidation of sulphur dioxide in the presence of water - i.E., oxidation of sulphurous acid. The sulphuric acid is widely used in lead-acid batteries for cars and other vehicles. It is also used in fertilizer preparation, ore processing, chemical synthesis, oil refining and wastewater processing.