Ethylene sulfate, with the CAS number 1072 - 53 - 3, is a high - quality chemical product offered at a low price. Its molecular formula is C₂H₄O₄S, and the molecular weight is approximately 124.11 g/mol. It appears as a colorless to pale yellow liquid under normal conditions. This product has a relatively high purity, meeting strict quality control standards to ensure its performance in various applications.
The density of ethylene sulfate is around 1.46 g/cm³. It has a boiling point in the range suitable for specific chemical processes, which allows it to be used effectively in reactions that require certain temperature conditions. Solubility is another important parameter. It is soluble in some common organic solvents, which provides flexibility in different formulation and reaction systems.
Ethylene sulfate has a wide range of applications in different industries. In the battery industry, it is an important electrolyte additive. By adding ethylene sulfate to the battery electrolyte, it can improve the stability of the solid - electrolyte interface (SEI) film on the electrode surface. This helps to reduce the self - discharge rate of the battery, enhance the cycle life, and improve the overall performance of the battery, especially in lithium - ion batteries.
In the field of organic synthesis, ethylene sulfate can be used as a reactant or intermediate. It participates in various chemical reactions, such as esterification and substitution reactions, to synthesize more complex organic compounds. These compounds may have applications in pharmaceuticals, agrochemicals, and specialty chemicals.
When using ethylene sulfate in the battery industry, it is necessary to follow strict procedures. First, the appropriate amount of ethylene sulfate should be added to the electrolyte solution according to the battery design requirements. Usually, the addition amount is in the range of a few percent, and accurate measurement is required to ensure the best performance improvement. The addition process should be carried out in a well - ventilated environment, and protective equipment such as gloves and goggles should be worn.
In organic synthesis, the reaction conditions need to be carefully controlled. The reaction temperature, pressure, and reaction time should be adjusted according to the specific reaction type. For example, in esterification reactions, appropriate catalysts may be required to promote the reaction. The product needs to be purified after the reaction to obtain the desired high - purity compound.
Case 1: A battery manufacturing company added ethylene sulfate to the electrolyte of its lithium - ion batteries. Before using ethylene sulfate, the batteries had a cycle life of about 500 cycles. After adding 2% ethylene sulfate, the cycle life increased to over 800 cycles. The self - discharge rate also decreased significantly, which improved the storage performance of the batteries. This improvement not only extended the service life of the batteries but also enhanced the competitiveness of the company's products in the market.
Case 2: In an organic synthesis laboratory, ethylene sulfate was used as an intermediate to synthesize a new pharmaceutical compound. By carefully controlling the reaction conditions and using appropriate catalysts, the yield of the target compound reached 80%. The quality of the synthesized compound met the strict requirements of pharmaceutical applications. This case demonstrated the importance of ethylene sulfate in the synthesis of high - value - added chemical products.
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