Concentrated sulfuric acid has a powerful dehydrating property, removing water (H 2 O) from other chemical compounds such as table sugar and other carbohydrates, to produce carbon, steam, and heat. Dehydration of table sugar (sucrose) is a common laboratory demonstration. [21]

2025年1月15日 · 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. ... the latter escapes as a vapour until the concentration of the acid falls to 98.3 percent. This mixture of sulfuric acid and water boils at a constant temperature of 338 °C ...

Sulfuric acid (concentrated) is extremely hazardous in contact with carbides, bromates, chlorates, fulminates, picrates, and powdered metals [Haz. Chem. Data 1966]. Allyl chloride may polymerize violently under conditions involving an acid catalyst, such as sulfuric acid [Ventrone 1971]. React exothermically with sodium hypochlorite to produce ...

2025年1月27日 · Concentrated sulfuric acid is a highly corrosive liquid that can cause severe, deep burns upon skin contact. The concentrated acid destroys tissue because of its dehydrating action, while dilute H 2SO4 acts as a skin irritant because of its acid character. Eye contact with concentrated H2SO4 causes severe burns, which can result in permanent ...

From sodium chloride, concentrated sulfuric acid produces hydrogen chloride: NaCl + H 2 SO 4 (conc) → NaHSO 4 + HCl; From calcium fluoride, concentrated sulfuric acid produces hydrogen fluoride: CaF 2 + H 2 SO 4 (conc) → CaSO 4 + 2HF; Dehydrating Agent: Sulfuric acid is a potent dehydrating agent that dries gases and removes water from ...

• Sulfuric acid (especially dilute) reacts with most metals to produce hydrogen gas which is flammable and potentially explosive. • Concentrated sulfuric acid is highly corrosive and can cause severe burns upon skin contact or permanent loss of vision upon eye contact. Dilute sulfuric acid is still a skin

Concentrated Sulfuric Acid When heated, the pure 100% acid loses sulfur trioxide gas, SO 3 , until a constant-boiling solution, or azeotrope, containing about 98.5% H 2 SO 4 is formed at 337℃. Concentrated sulfuric acid is a weak acid (see acids and bases ) and a poor electrolyte because relatively little of it is dissociated into ions at ...

Hazards of sulphuric acid John Riddick, Risktec Solutions, Canada Safety review Summary Sulphuric acid (or sulfuric acid) (H2SO4) (CAS: 7664939) is a dense oily colourless liquid. The acid was historically referred to as Oil of Vitriol, from the Latin vitreus, meaning glassy since the concentrated acid has a glassy appearance.

2024年10月2日 · Safe Handling Practices. To ensure safety while working with concentrated sulfuric acid, follow these guidelines from the Concentrated Sulfuric Acid SDS:. Personal Protective Equipment (PPE): Always wear appropriate PPE, including gloves, goggles, and lab coats. Storage: Store concentrated sulfuric acid in a cool, dry place, away from incompatible …

Concentrated sulfuric acid is stable, but may react violently with water and with many organic compounds because of its action as a powerful dehydrating, oxidizing, and sulfonating agent. Ignition or explosions may occur on contact of sulfuric acid with many metals, carbides, chlorates, perchlorates, permanganates, bases, and reducing agents.