Beilstein/REAXYS Number 2037554 . The 98.3% grade is more stable in storage, and is the usual form of what is described as "concentrated sulfuric acid". MDL number MFCD00064589. It is used to make fertilizer and a variety of other products. Physical properties Grades of sulfuric acid. The electrophilic addition reaction between ethene and sulfuric acid. $\ce{CH_2=CH_2 + H_2SO_4 \rightarrow CH_3CH_2OSO_2OH}$ May cause lung damage. Sulfuric acid can also be heated and used to dissolve other metals, including lead and copper.. Acid-proof synthetic gloves should be worn when working with sulfuric acid. EC Number 231-639-5. It causes severe skin burns and eye damage. Molecular Weight 98.08 . Because this is a gas, it immediately escapes from the system. Concentrated sulfuric acid reacts violently with water and many other substances under certain conditions. Alkenes react with concentrated sulfuric acid in the cold to produce alkyl hydrogensulphates. Concentrated Sulfuric Acid (H 2 SO 4) 93%-98% The use of concentrated sulfuric acid for pH control in water and wastewater treatment, agriculture, bio-energy and chemical processes is often the best choice due to the ready availability, low cost and effectiveness of this acid. Concentrated sulfuric acid is a chemical used for multiple purposes by manufacturers and processors. Assess the Situation. For example, ethene reacts to give ethyl hydrogensulphate. Hygroscopic (absorbs moisture from the air). Concentrated sulfuric(VI) acid . Corrosive to metal. The next thing to do is to take a good look at the sulfuric acid spill, making note of how big of an area it covers and the approximate volume present. Sulfuric acid fumes can be dangerous to breathe and you don’t want to spread them any farther than you have to within an enclosed space. It reacts violently, becoming very hot, when mixed with water. May cause irreversible eye injury. The concentrated sulphuric acid can act both as an acid and as an oxidising agent. Although nearly 100% sulfuric acid solutions can be made, the subsequent loss of SO 3 at the boiling point brings the concentration to 98.3% acid. It is also used as a drying agent by manufacturers. Target Organs: Lungs, teeth, eyes, skin. NACRES NA.22 In one of its most familiar applications, sulfuric acid serves as the electrolyte in lead-acid storage batteries. The concentrated sulphuric acid gives a hydrogen ion to the halide ion to produce a hydrogen halide. Linear Formula H 2 SO 4. Sulfuric acid, dense, colorless, oily, corrosive liquid; one of the most important of all chemicals, prepared industrially by the reaction of water with sulfur trioxide. For a 15-minute exposure, the vapour concentration in the atmosphere should not exceed 0.15 mg m-3. PubChem Substance ID 24860672. Potential Health Effects Eye: Causes severe eye burns. CORROSIVE: DANGER. Concentrated sulphuric acid acting as an acid. 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