1,7-Heptanediol, with the CAS number 629-30-1, is a valuable chemical compound. Its molecular formula is C7H16O2, and the molecular weight is approximately 132.20 g/mol. This product is typically presented as a clear, colorless liquid with a mild odor. The boiling point of 1,7-Heptanediol is around 240 - 243 °C, and its melting point is -42 °C. It has a density of about 0.947 g/mL at 25 °C. It is soluble in water and common organic solvents such as ethanol and ether.
1. **Cosmetic Industry**: 1,7-Heptanediol is widely used in cosmetics. It serves as a humectant, which helps to keep the skin hydrated by attracting and retaining moisture. It can also act as a solvent for other cosmetic ingredients, ensuring a homogeneous formulation. Additionally, it has some antibacterial properties, which can help extend the shelf - life of cosmetic products.
2. **Chemical Synthesis**: In the field of chemical synthesis, it is used as an intermediate. It can participate in various chemical reactions, such as esterification reactions, to produce other useful chemical compounds. For example, it can be used to synthesize esters that have applications in the fragrance and flavor industry.
3. **Lubricant and Plasticizer**: Due to its chemical properties, 1,7 - Heptanediol can be used as a lubricant additive or a plasticizer in the polymer industry. It can improve the flexibility and workability of polymers.
1. **Cosmetic Formulation**: When formulating cosmetics, 1,7 - Heptanediol can be added to the water phase of the formulation. The recommended concentration usually ranges from 1% - 5%, depending on the specific product. It should be added at a temperature below 50 °C to avoid any potential chemical reactions. First, heat the water phase ingredients to the appropriate temperature, then slowly add 1,7 - Heptanediol under gentle stirring until it is completely dissolved.
2. **Chemical Synthesis**: In chemical synthesis, the usage of 1,7 - Heptanediol depends on the specific reaction. Generally, it needs to be added according to the stoichiometry of the reaction. It is important to control the reaction conditions such as temperature, pressure, and reaction time to ensure a high - yield reaction.
3. **Lubricant and Plasticizer Applications**: When used as a lubricant additive or plasticizer, it can be mixed with the base lubricant or polymer matrix. The amount added should be determined based on the desired performance of the final product.
1. **Cosmetic Product Development**: A cosmetic company was developing a new moisturizing lotion. They added 3% 1,7 - Heptanediol to the formulation. Through consumer testing, they found that the lotion had better moisturizing effects compared to the previous formula without 1,7 - Heptanediol. The product also had a longer shelf - life due to the antibacterial properties of 1,7 - Heptanediol. As a result, the sales of the new lotion increased significantly in the market.
2. **Chemical Synthesis of a Fragrance Ester**: A fragrance manufacturer wanted to synthesize a new ester for a perfume. They used 1,7 - Heptanediol as one of the starting materials. By carefully controlling the reaction conditions, they were able to achieve a high yield of the desired ester. The resulting fragrance had a unique and pleasant scent, which was well - received by the market.
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Este é o William, Diretor Executivo da Zhishang Chemical Co., Ltd.
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