BDO,工业硫酸,三氯异氰尿酸,碳化钙-河北津宏玮邦化工有限公司

It has strong corrosiveness. If it accidentally splashes onto the skin or clothes during the experiment, it should be immediately rinsed with a large amount of water. This not only reduces the time that concentrated sulfuric acid stays on the skin, but also dilutes it for a while, reducing its harm to the human body. Even if it dissolves in water, it will release heat. However, a large amount of evidence has shown that running water will take away heat during rinsing, The generated heat has almost no impact on the human body (remember not to use a cloth to wipe it, because concentrated sulfuric acid has strong dehydration and will carbonize when in contact with the skin. Using a cloth to wipe it will wipe off the skin tissue. However, if you need to answer on the test paper, please refer to the textbook content), then apply 3% to 5% sodium bicarbonate solution (do not use strong bases such as sodium hydroxide). Severe cases should be immediately taken to the hospital. If droplets fall on the desktop during the experiment, wipe them dry with a cloth.

Water absorption

Placing a bottle of concentrated sulfuric acid open in the air will increase its mass, decrease its density, decrease its concentration, and increase its volume. This is because concentrated sulfuric acid has water absorption properties and can adsorb water in the air.

Frequently used as a desiccant. Concentrated sulfuric acid is often used as a gas washing device. In addition to absorbing water from the air, it can also dry neutral and acidic gases, such as neutral gases such as carbon monoxide, oxygen, nitrogen, and all rare gases.

What are the characteristics of sulfuric acid