1. Agrochemicals

• Fertilizer: Lithium sulfate is used as a source of lithium in fertilizers. Though it is not as common as other forms of lithium, it can be included in soil amendments, particularly for crops that require trace amounts of lithium, which may help improve plant growth and resistance to stress.
• Pesticide Formulations: Lithium sulfate can be a component in some pesticide formulations, where it may help in enhancing the effectiveness or stability of other active ingredients.

2. Construction

• Concrete Additives: Lithium sulfate can be used in construction for its ability to influence the setting time of concrete. It is sometimes added to concrete mixes to accelerate curing, improving the final strength and hardness of the material.
• Cement Additives: It may also be used in cement formulations to improve certain physical properties, including reducing the formation of alkali-silica reactions that can lead to cracks in concrete.

3. Chemical Synthesis

• Chemical Reagent: Lithium sulfate is used as a reagent or starting material in the synthesis of other lithium compounds. For example, it may be used to produce lithium carbonate, which is then further processed into other lithium salts or used in the production of batteries.

4. Pharmaceuticals

• Lithium Source: Lithium sulfate can be used in the pharmaceutical industry as a source of lithium in drugs for treating bipolar disorder. Lithium salts, including lithium sulfate, are important for stabilizing mood disorders by regulating neurotransmitter function.
• Pharmaceutical Intermediates: It is also used as a starting material for the synthesis of other lithium-based compounds used in medicine, such as lithium carbonate and lithium citrate, which are more commonly used for therapeutic purposes.