Factory Supply Lead Acetate Trihydrate, with the CAS number 6080 - 56 - 4, is a chemical compound widely used in various industries. Its chemical formula is (Pb(CH_{3}COO)_{2}cdot3H_{2}O). The molar mass is approximately 379.33 g/mol. It appears as colorless or white monoclinic crystals. The compound is soluble in water and glycerol, slightly soluble in ethanol. The density of lead acetate trihydrate is around 2.55 g/cm³. It has a melting point of about 75°C and loses its three water molecules at 100 - 120°C.
1. **In the textile industry**: It is used as a mordant in dyeing processes. A mordant helps the dye to bind more firmly to the fabric, improving color fastness. By using lead acetate trihydrate, textile manufacturers can achieve more vivid and long - lasting colors on various types of fabrics.
2. **In the production of pigments**: It is an important raw material for the synthesis of some pigments. For example, it can be used to produce lead - based pigments, which are known for their high tinting strength and good hiding power. These pigments are used in paints, coatings, and inks.
3. **In the chemical analysis field**: Lead acetate trihydrate is used as a reagent in qualitative analysis. It can react with some anions to form characteristic precipitates, which helps chemists to identify the presence of certain substances in a sample.
1. **Handling precautions**: When handling lead acetate trihydrate, it is essential to wear appropriate personal protective equipment, such as gloves, goggles, and a lab coat. Since lead compounds are toxic, avoid inhalation, ingestion, and direct skin contact. Work in a well - ventilated area or use a fume hood to prevent the inhalation of dust or vapors.
2. **Solution preparation**: If you need to prepare a solution of lead acetate trihydrate, slowly add the solid to water while stirring continuously. The solubility of lead acetate trihydrate in water increases with temperature. Make sure to use distilled or deionized water to avoid contamination.
3. **Reaction conditions**: When using lead acetate trihydrate in chemical reactions, pay attention to the reaction temperature, pH, and reaction time. Different reactions may require different conditions to achieve the desired results.
1. **Textile dyeing case**: A textile factory in Asia was facing the problem of poor color fastness in their dyeing process. They decided to use lead acetate trihydrate as a mordant. First, they prepared a solution of lead acetate trihydrate with a concentration of 5% by dissolving the appropriate amount of the compound in warm water. Then, they soaked the fabric in the mordant solution for 30 minutes at 60°C. After that, they dyed the fabric with a reactive dye. The result was a significant improvement in color fastness. The dyed fabric passed the rub - fastness and wash - fastness tests, and the colors were more vivid compared to the previous process without using the mordant.
2. **Pigment production case**: A pigment manufacturing company wanted to develop a new type of lead - based pigment. They used lead acetate trihydrate as the lead source. By reacting lead acetate trihydrate with a specific organic compound under controlled temperature and pH conditions, they successfully synthesized a new pigment with excellent tinting strength and hiding power. The new pigment was used in high - quality automotive paints, and it received positive feedback from customers due to its good performance.
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