trans - 1,4 - dichloro - 2 - butene with the CAS number 110 - 57 - 6 is a high - quality chemical product. It has a specific molecular formula of C₄H₆Cl₂. The molecular weight can be calculated based on the atomic weights of carbon (C), hydrogen (H), and chlorine (Cl), which is approximately 122.99 g/mol. This product is known for its high purity and is often provided at the best price in the market. The appearance of trans - 1,4 - dichloro - 2 - butene is typically a colorless to light yellow liquid. It has a certain boiling point and melting point range, which are important physical parameters for its storage and usage. The boiling point is around 156 - 158°C, and the melting point is approximately - 48°C. The density of this product is about 1.18 g/cm³ at 25°C.
trans - 1,4 - dichloro - 2 - butene has a wide range of applications in different industries. In the chemical synthesis field, it serves as an important intermediate. It can be used in the synthesis of various organic compounds, such as pharmaceuticals and agrochemicals. For example, it can participate in certain chemical reactions to form new chemical structures with specific biological activities. In the rubber industry, it can be used as a vulcanizing agent or a modifier to improve the performance of rubber products, such as enhancing the heat resistance and mechanical strength of rubber. Additionally, it has applications in the production of plastics and resins, where it can be incorporated into the polymer structure to modify the properties of the final materials.
When using trans - 1,4 - dichloro - 2 - butene, it is essential to follow strict safety procedures. First, users should wear appropriate personal protective equipment (PPE), including safety goggles, gloves, and a lab coat. The product should be stored in a cool, dry, and well - ventilated area away from sources of ignition and incompatible substances. For handling, it is recommended to use appropriate chemical - resistant containers. When using it in a chemical reaction, accurate measurement of the required amount is crucial. The reaction conditions, such as temperature, pressure, and reaction time, should be carefully controlled according to the specific reaction requirements. After use, any remaining product should be properly stored and disposed of in accordance with local environmental regulations.
Case 1: Pharmaceutical Synthesis
A pharmaceutical company was developing a new drug to treat a certain disease. They used trans - 1,4 - dichloro - 2 - butene as an intermediate in the synthesis process. By carefully controlling the reaction conditions, they were able to synthesize a key intermediate with high yield and purity. This intermediate was then further processed to form the final drug product. The use of trans - 1,4 - dichloro - 2 - butene significantly improved the efficiency of the synthesis process and reduced the cost of production.
Case 2: Rubber Modification
A rubber manufacturing company wanted to improve the heat resistance of their rubber products. They added a certain amount of trans - 1,4 - dichloro - 2 - butene during the vulcanization process. After testing, they found that the heat - resistance performance of the rubber products was significantly enhanced. The rubber products could now withstand higher temperatures without significant degradation, which expanded their application range in high - temperature environments.
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