Barium oxalate, with the CAS number 516 - 02 - 9, is a chemical compound of significant importance in various industrial and scientific applications. It is a white crystalline powder that is sparingly soluble in water. The molecular formula of barium oxalate is BaC₂O₄, and its molecular weight is approximately 225.35 g/mol.
This high - quality barium oxalate is produced under strict quality control measures to ensure its purity. The purity level often reaches over 99%, which makes it suitable for applications where high precision and reliability are required. It is typically packed in sealed containers to prevent moisture absorption and contamination during storage and transportation.
In the laboratory, barium oxalate is commonly used as a standard in gravimetric analysis. Due to its low solubility and well - defined chemical properties, it can be used to determine the amount of barium or oxalate ions in a sample accurately. Scientists can precipitate barium oxalate from a solution containing barium ions and then weigh the precipitate to calculate the concentration of barium in the original sample.
In the manufacturing industry, it is used in the production of certain types of pigments. Barium oxalate can be decomposed at high temperatures to form barium carbonate and carbon monoxide. The resulting barium carbonate can then be used as a raw material in the production of barium - based pigments, which are known for their excellent hiding power and color stability.
It also has applications in the electronics industry. Barium oxalate can be used in the preparation of barium - containing ceramics, which are used in capacitors and other electronic components. These ceramics have unique electrical properties, such as high dielectric constant and low loss tangent, making them suitable for high - frequency applications.
When handling barium oxalate, it is essential to follow strict safety protocols. Wear appropriate personal protective equipment, including gloves, goggles, and a lab coat. Since barium oxalate is toxic if ingested or inhaled, ensure good ventilation in the working area.
In the laboratory for gravimetric analysis, first, dissolve the sample containing barium ions in an appropriate solvent. Then, add a solution of oxalic acid or an oxalate salt slowly to the sample solution while stirring. A white precipitate of barium oxalate will form. Allow the precipitate to settle, then filter it through a pre - weighed filter paper. Wash the precipitate thoroughly to remove any impurities, and then dry it in an oven at a suitable temperature until a constant weight is achieved. Finally, weigh the dried precipitate to calculate the amount of barium in the original sample.
In the manufacturing process, the decomposition of barium oxalate is carried out in a high - temperature furnace. The temperature and heating time should be carefully controlled according to the specific requirements of the application. The resulting products should be handled and processed further according to the subsequent manufacturing steps.
Case 1: A research laboratory was conducting a study on the trace elements in environmental water samples. They used barium oxalate as a standard for gravimetric analysis to determine the concentration of barium ions in the water. By following the standard procedure, they were able to accurately measure the barium content in the samples with a relative error of less than 2%. This result was crucial for understanding the environmental pollution status and formulating relevant protection policies.
Case 2: A pigment manufacturing company was looking for a high - quality raw material to produce barium - based pigments. They used our high - purity barium oxalate as the starting material. After a series of decomposition and processing steps, they successfully produced pigments with excellent color quality and high stability. The pigments were well - received in the market due to their superior performance, which helped the company increase its market share.
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