1. In the field of chemical engineering and chemical synthesis
1. Preparation of other bromide products
      Potassium bromide is a basic bromine source raw material used to synthesize sodium bromide, zinc bromide, ammonium bromide, lithium bromide, and organic bromine intermediates; Used in the pharmaceutical and chemical industry to synthesize bromine containing raw materials, antibiotic intermediates, and sedative drug raw materials.
2. Organic synthesis catalysts
      In many alkylation and addition reactions, it acts as a bromine element donor and combines with oxidants to generate bromine radicals, which are used to prepare dye intermediates and flame retardant raw materials.
2. Pharmaceutical and chemical industry
      Pharmaceutical grade potassium bromide was previously used as a raw material for sedatives and anticonvulsants; Nowadays, the use of oral preparations by humans has decreased and is more commonly used in animal medicine formulations to alleviate stress reactions in livestock and poultry.
      Pharmaceutical analysis: preparation of chemical reference reagents, qualitative detection of drug components.
3. Imaging materials industry (traditional core use)
      Production of photosensitive film, infrared film, and industrial flaw detection film; Bromine ions react with silver nitrate to form silver bromide, which is a photosensitive core material. At present, the usage of civilian film is shrinking, but industrial X-ray film, core imaging film, and non-destructive testing film are still widely used.
4. Optical Chemical Engineering
1. Window raw materials for infrared spectrophotometer
      High purity potassium bromide is compressed into potassium bromide chips (KBr salt tablets), which are equipped with standard materials for infrared spectroscopy FT-IR testing. When detecting the components of polyimide film F-46, resin, adhesive, and organic solvents, the sample and potassium bromide powder are compressed into tablets to analyze the molecular structure; Chemical laboratories and material companies must have quality inspections.
5. Oilfield chemical industry
      Prepare high-density completion fluid and drilling fluid; Saturated potassium bromide aqueous solution has a high density and lower corrosiveness than zinc chloride solution. It is used as a well killing fluid for deep and high-temperature oil wells to balance formation pressure and protect wellbore walls; Core drilling rigs are often used for drilling operations.
      Used as a component of oilfield corrosion inhibitors.
6. Water treatment and anti-corrosion chemical industry
      Using circulating cooling water as a raw material for killing algae and bacteria by oxidizing and releasing bromide ions; Compared to chlorine agents, it has lower corrosiveness to equipment.
      Metal surface treatment additives are added in little amounts to some special phosphating solution formulations.
7. Other chemical sub sectors
      Flame retardant chemical industry: one of the raw materials for synthesizing organic bromine flame retardants;
      Electroplating industry: some special gold and silver plating formula additives;
      Reagent chemistry: Analyze pure AR grade potassium bromide and prepare standard solution;
      Synthetic refrigerant raw materials: Prepare bromine based refrigerants by combining organic raw materials.

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