Ethyl paraben sodium, with the CAS number 35285 - 68 - 8, is a widely - used preservative in various industries. It is the sodium salt of ethyl paraben, a member of the paraben family. The chemical formula of ethyl paraben sodium is C₉H₉NaO₃. It appears as a white to off - white crystalline powder. This product is water - soluble, which makes it easy to incorporate into aqueous formulations.
Factory - supplied ethyl paraben sodium is known for its high purity and stability. It has a melting point in a specific range that allows for convenient handling during the manufacturing process. In addition, it has a long shelf - life under proper storage conditions, usually stored in a cool, dry place away from direct sunlight.
Ethyl paraben sodium is mainly used as a preservative. In the cosmetic industry, it is added to creams, lotions, shampoos, and makeup products. It helps to prevent the growth of bacteria, fungi, and yeast, thereby extending the product's shelf - life and maintaining its quality. For example, in a moisturizing cream, it can ensure that the product does not spoil during its use period, protecting the consumers from potential microbial contamination.
In the food industry, it can be used as a food preservative in certain food products. It can inhibit the growth of microorganisms in beverages, jams, and pickles. However, the use of ethyl paraben sodium in food is strictly regulated by relevant food safety authorities.
It is also used in the pharmaceutical industry. It can be added to topical medications, oral solutions, and injectable preparations to prevent microbial growth and ensure the safety and efficacy of the drugs.
When using ethyl paraben sodium in a formulation, it is important to first determine the appropriate concentration. The recommended concentration usually depends on the specific application and the regulatory requirements. For cosmetic products, the typical concentration ranges from 0.1% to 0.3%. In the food industry, the concentration is much lower and should comply with food safety standards.
To incorporate ethyl paraben sodium into a formulation, it can be dissolved in water or other suitable solvents first. If it is used in an oil - in - water emulsion, it is usually added to the aqueous phase. Mix it thoroughly with other ingredients to ensure uniform distribution.
It is necessary to follow good manufacturing practices. During the production process, ensure that the environment is clean and sterile to avoid contamination. Also, proper labeling of the product should be done to indicate the presence of ethyl paraben sodium.
Case 1: Cosmetic Company
A well - known cosmetic company was facing problems with the spoilage of its moisturizing lotions. After conducting research, they decided to add ethyl paraben sodium to their formulation at a concentration of 0.2%. Before the addition, the lotions had a shelf - life of only 3 months, and there were reports of mold growth in some batches. After the addition of ethyl paraben sodium, the shelf - life was extended to 12 months, and there were no more reports of microbial contamination. This not only improved the product's quality but also reduced the cost associated with product returns.
Case 2: Food Manufacturer
A food manufacturer that produces fruit jams was struggling with the growth of yeast in its products. They added ethyl paraben sodium at a concentration allowed by food regulations. The jams previously had a short shelf - life and often required refrigeration. After the addition of the preservative, the jams could be stored at room temperature for a longer time, which increased the marketability of the products. The sales volume of the jams also increased significantly due to the extended shelf - life.
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