Advice 1: How to inflate balloons with helium

When holiday decoration balloons often use balloons inflated with helium. Will tell you how to inflate with helium and tie the balloons.
balloon inflated with helium
You will need
  • - cylinder of compressed helium (10 liters or 40 liters);
  • balloons latex 12";
  • - braid for tying inflated balloons - decorative polypropylene ribbon 5 mm wide;
  • - scissors for cutting braid.
Instruction
1
Correctly and safely install a gas balloon with helium. During inflating the balloons with helium cylinder must be installed in a way that eliminates its fall, rollover, and any movement. Large cylinders (40 l) are arranged in a standing position. Small cylinders (10 l) can be positioned horizontally, provided that they secure on the table or on the floor.
2
Preparing the braid. For tying helium balloons, typically used pieces of tape with a length of 1.5 m. the Desired number of ends of braid (number of balloons) cut with scissors. For children's parties, the ends of the braid are making more long: 2.0 to 2.5 m - children were able to get them. Most importantly, to all the ends of the braid have the same length.
3
Adopt safe position relative to the cylinder. People blew up balloons with helium, must be located behind the cylinder and in the direction opposite to the direction of the jet of gas emerging from the cylinder. If inflate the balloon to burst, this situation is safe as possible to humans.
4
Putting the ball on the cylinder valve. The neck of the balloon stretched his fingers and stretched on the threaded part of the cylinder valve.
5
The inflation of the balloon. The flywheel of the valve can be smoothly rotated in the direction opposite rotation-clockwise - it opens and gas begins to flow inside of the ball. In this case, the fingers of the other hand the neck of the balloon is pressed against the threaded portion of the valve. Once the balloon is fully inflated, the valve rotates in the opposite direction - is closed.
6
Control the size of the inflated globe. Latex balloon consists of a balloon and the cervix. The balloon of the balloon is used to inflate and neck for tying. Therefore, once the balloon is fully inflated, the inflation of the balloon should stop. A sign that the balloon is fully inflated ball is what starts to swell the neck of the balloon. If you do not stop inflation, it will begin to inflate the neck of the balloon, in other words: "the ball will start to grow a leg." It is not permissible.
7
Tying an inflated balloon. The inflated balloon is removed from the container by inclining the neck of the valve. You can't just pull the neck with the valve, as this can damage the material of the ball. The process of tying the neck of the balloon simultaneously with braid detail shown in the video.
Note
Helium balloons is recommended to inflate directly at the place of their use. During their transportation or transport the balls definitely get the damage or cause the balls to burst, or to the fact that their lifetime is reduced.
Useful advice
To save helium is recommended all the balloons before inflating them with helium, to inflate with air. This will enable you to detect defective balls and save up to 15% helium. Inflate balloons with air using a hand pump or electric compressor.
To increase the life time of helium balloons, it is recommended to process them by means of Hi-Float. This will increase time from 6-8 hours to 2-3 weeks.

Advice 2 : How to obtain helium

Helium is an inert monatomic gas without color, taste and smell. One of the most common elements in the Universe, second only to hydrogen. Helium is extracted from natural gas by low temperature separation process — the so-called fractional distillation.
How to obtain helium
Instruction
1
The nucleus of the atom of helium consists of two protons and (usually) two neutrons revolve around two electrons. The helium atom is smaller than a lighter atom of hydrogen with one proton and an electron as a strong force of attraction of the helium nucleus pulls the electrons closer. Although it's easy to assume that the electrons revolve around the nucleus in a circular orbit, forming a "cloud" place the most probable location of electrons. The isotope of helium containing 2 protons and 2 electrons, can contain from 1 to 4 neutrons.
2
In industry, helium is obtained from natural gas in which it is contained. From other gases, helium is separated by deep cooling, using the fact that it liquefies harder for all other gases.
3
First produce cooling by throttling, which takes place in several stages. During this process, the helium is purified from carbon dioxide and other hydrocarbons. The result is a mixture of helium, hydrogen and neon. The resulting mixture is called crude helium. The helium content in the mixture is from 70 to 90%.
4
Then the mixture of crude helium is purified in which there is the removal of the hydrogen. Hydrogen from the mixture is removed by means of copper oxide.
5
Further, the final purification of helium is achieved by cooling the remaining mixture, boiling under vacuum, nitrogen and the subsequent adsorption of impurities existing on activated carbon in the adsorbers, which are also cooled by liquid nitrogen. Usually helium get two types: technical purity (helium is 99,80 %), and high purity (the content of helium 99,985 %).
Note
Don't try to get helium at home. The production of helium requires special industrial equipment and strict control of the process of production.
Useful advice
Helium - a colorless, nonflammable gas that has no smell. It is used in meteorological balloons-probes, when welding, mixtures of "artificial air" for deep sea divers, in the manufacture of semiconductors, in the manufacture of lasers, also used in metallurgy and other industries.
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