? On 20021February 18, the scene of a hydrogen balloon burning accident at the entrance of a park in Zhenjiang, Jiangsu Province showed that the hydrogen balloon in the hands of mobile vendors exploded instantly. The police said that at the time of the incident, an old smoker blew a balloon on the cigarette butt in the old man's hand, causing deflagration. The old man and a child were slightly injured?
? Pay attention to the following points about hydrogen balloons.
First, don't tie the hydrogen balloon to the child's wrist or button. If it explodes, it is easy to cause serious burns or scalds to children.
Second, hydrogen balloons should be kept away from open flames, high temperatures and lightning. Don't put the hydrogen balloon in the cab. Third, don't burn a hydrogen balloon with a lighter. Keep firecrackers away from hydrogen balloons. Don't be narrow-minded. Don't smoke around the hydrogen balloon. If you accidentally burn yourself, throw it away and go to the hospital as soon as possible.
The outer packaging of the hydrogen balloon is made of plastic, which will drip down during combustion. If you accidentally burn yourself, you should throw it away quickly to avoid minor burns, and immediately rinse it with normal saline. If there are blisters after washing, don't break them. Don't apply toothpaste or moisturizing cream to the affected area, wrap it with gauze, and then go to the hospital as soon as possible. If the wound area is too large, don't handle it yourself and get to the hospital as soon as possible?
? Hydrogen is flammable, so conscientious enterprises have long used helium to inflate balloons. Helium is relatively more expensive than hydrogen. However, some unscrupulous merchants still use hydrogen to inflate balloons in order to reduce costs, so parents must not be greedy when buying balloons for their children. Must I ask if the gas in the balloon is hydrogen? The cost of helium balloon is about 4~5 yuan, so if the price is lower than this, it is very possible to make a hydrogen balloon?