Bromine is an important chemical raw material with wide applications in industries such as flame retardants, fire extinguishing agents, refrigerants, photosensitive materials, pharmaceuticals, pesticides, and oil fields. The natural resources of bromine mainly exist in seawater, underground concentrated brine, sedimentary rock salt mines in ancient oceans, and salt lake water.

Due to the enormous amount of seawater, the bromine content in seawater accounts for 99% of the total resources on Earth. The concentration of bromine in seawater is about 65ppm, while the content of bromine in rock salt mines is only 0.1ppm. In some areas, the bromine content in underground brine is 200-300ppm, and in some salt lake waters abroad, the concentration of bromine is as high as 2000-12000ppm.

Several advantages of using bromine:

1. Rapid drying performance

Bromine has a boiling point of 32 ℃ and can achieve rapid drying.

2. Non ignitable

Because it has no ignition point and is not classified as a hazardous substance under the Fire Protection Law, it can be used with confidence.

3. Good stability

Bromine has excellent stability compared to most metals, and it also maintains high stability during thermal decomposition and water addition decomposition.

4. Excellent cleaning ability

Bromine has the same efficient cleaning ability as 1,1,1-trichloroethane and acetone. Moreover, due to its good fluidity, it can effectively penetrate into narrow spaces and open areas.

5. Low toxicity

The toxicity test results so far indicate that setting the working environment concentration benchmark at 2500ppm (average specific gravity within 8 hours) and conducting appropriate operations is not hazardous.

6. Low ODP

Bromine can be stored in the atmosphere for 11 days, but due to its relatively short lifespan, the ODP (ozone depletion coefficient) is only 0.013-0.018 (in temperate regions) (according to the latest three-dimensional model test results).