The product is Sodium formaldehydesulfoxylate dihydrate with the CAS number 6035 - 47 - 8. It is known for its high quality and comes at a good price. Chemically, its formula is C1H6Na2O5S. This compound appears as a white crystalline powder. It has good solubility in water, which makes it convenient for various applications. In terms of purity, our high - quality product can achieve a purity level of up to 99%, ensuring its effectiveness in different fields.
Textile Industry: Sodium formaldehydesulfoxylate dihydrate is widely used as a reducing agent in the textile industry. It can remove the color from dyed fabrics during the re - work process. For example, when a batch of fabric is dyed with an incorrect color, this product can be used to strip the color and re - dye the fabric to the desired color. It can also be used in the printing process to improve the printability and color fastness of the fabric.
Paper Industry: In the paper industry, it serves as a bleaching agent. It can effectively remove the lignin and other impurities in the pulp, resulting in a whiter and more uniform paper. This helps to improve the quality of the final paper product and reduces the environmental impact compared to some traditional bleaching agents.
Photographic Industry: It is used in photographic developers. It can accelerate the development process and improve the quality of the developed images. By controlling the concentration and reaction conditions, it can help to achieve clear and high - contrast images.
Preparation: First, wear appropriate personal protective equipment, including gloves, goggles, and a mask. Dissolve the product in water according to the required concentration. The solubility of Sodium formaldehydesulfoxylate dihydrate in water is relatively high, but gentle stirring may be required to ensure complete dissolution. The recommended water temperature for dissolution is around 20 - 30°C.
Application in Textile: For fabric color stripping, immerse the fabric in the prepared solution. The soaking time depends on the type of fabric and the depth of the original color, usually ranging from 30 minutes to 2 hours. After soaking, rinse the fabric thoroughly with clean water to remove any remaining chemicals.
Application in Paper: Add the dissolved solution to the pulp during the papermaking process. The dosage should be adjusted according to the quality requirements of the paper product. Stir the pulp well to ensure uniform distribution of the product.
Application in Photography: Add the appropriate amount of the prepared solution to the photographic developer according to the instructions. The developer temperature and reaction time should be strictly controlled to obtain the best image development results.
Textile Case: A textile factory in Asia received a large order for blue - dyed shirts. However, due to a technical error, the shirts were dyed a much darker blue than the customer's requirement. The factory used our Sodium formaldehydesulfoxylate dihydrate to strip the color. They prepared a 5% solution of the product in water at 25°C. After soaking the shirts for 1.5 hours, the original dark blue color was completely removed. Then, the shirts were re - dyed to the correct color, and the customer was satisfied with the final product.
Paper Case: A paper mill in Europe was producing high - quality writing paper. They were facing the problem of yellowish pulp due to the presence of lignin. By adding our product as a bleaching agent during the pulping process, at a dosage of 2 grams per liter of pulp, the resulting paper became much whiter and more uniform. The paper's market competitiveness was significantly improved.
Photography Case: A photography studio was having trouble getting clear and high - contrast images in their black - and - white photography. After adding our Sodium formaldehydesulfoxylate dihydrate to the developer at a concentration of 0.5%, the development speed increased, and the images showed much better clarity and contrast. The studio's customers were very satisfied with the improved photo quality.
If you have any questions or need further information about our Sodium formaldehydesulfoxylate dihydrate, please feel free to contact us.
This is William, CEO of Zhishang Chemical Co., Ltd.
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