How is hydrogen chloride gas stored
For modern industrial gas products, most of them are dangerous, so it is very necessary to do a good job of safe storage. Taking hydrogen chloride gas products for example, compared with traditional industrial gases, although the product itself is not harmful, but because the product is easily dissolved in water, it is easy to generate strong corrosive hydrochloric acid, which greatly increases its risk.
It is the performance of hydrogen chloride gas products that is easily soluble in water, which often requires manufacturers and related product users to do a good job of dry storage of gas, so as to avoid dangerous problems as far as possible. So, what is the safest way to store hydrogen chloride?
According to the product research and development expert of the area professional hydrogen chloride manufacturer points out, because hydrogen chloride gas is dissolved in water to generate hydrochloric acid, therefore when medicine bottle is opened often form hydrochloric acid acid mist with the small water drop in the air. Industrial hydrochloric acid is often a slight yellow, which is mainly because of the presence of ferric chloride. The problems needing attention when hydrogen chloride gas is stored are detailed as follows:
HCL transport
1. Ammonia water is commonly used to test the presence of hydrochloric acid. Ammonia water reacts with hydrogen chloride gas to produce white ammonia chloride particles. Hydrogen chloride has a strong dipole and forms hydrogen bonds with other dipoles. Occupational exposure limit. Rubber gloves must be worn while working. Gas must be stored in cylinders.
2. All equipment, pipes, valves, etc. using hydrogen chloride gas should be baked and vacuum before use, in order to maintain its waterless and sealed state. When the device is not in use temporarily, the HCl should be let out and filled with dry inert gas. When air leaks, use polyethylene cover, nylon hose sleeve leakage part should, the gas into the water absorption, and then neutralize with slaked lime.
3. The gas cylinders shall be stored outdoors in a cool, dry and well ventilated place or in a forcefully ventilated room, away from oxides and fire sources. Strictly prevent container collision. To check regularly, use soap solution or ammonia to detect leakage. Hydrogen chloride in dry state is not corrosive to metals. It can be used in general metallic materials such as steel and stainless steel. However, when there is moisture, it corrodes all kinds of metals.