Sodium Hydrosulphite

Hydrosulfite

Sodium hydrosulfite is also very effective in bleaching recycled pulp because sodium hydrosulfite is a strong reducing agent and can effectively react with the dyes in the pulp. Also, most recycled furnish usually contains some mechanical pulps that can be bleached by sodium hydrosulfite. The bleaching conditions for recycled pulp by sodium hydrosulfite are very similar to those for mechanical pulps. If the furnish, such as mixed office waste, contains mainly chemical pulps, significant brightness gain could be achieved by performing a hydrosulfite (Y) stage at a much higher temperature, 80–100°C and at pH of 7.0.

Sodium dithionite is a reductive bleaching chemical. It is also known as sodium hydrosulfite. Reductive bleaching is especially essential not only for bleaching but also for removing color from colored recovered paper and carbonless paper (Hache et al., 1994, 2001). Many dyes used to color paper can be effectively destroyed by reductive bleaching chemicals. Sodium dithionite is known to be effective for color stripping and can remove many types of dyes. Most of the acidic and direct dyes are permanently decolorized by sodium dithionite because it breaks the azo groups. Some of the basic dyes are temporarily decolorized. Dithionite is sometimes used in combination with an oxidizing agent, as some dyes which are not reactive with oxidizing chemicals can react with some reducing agents.

Sodium dithionite decomposes rapidly when exposed to air. When exposed to water, the solid form liberates sulfur gases which are corrosive to equipment and buildings. The aqueous solution is typically stored in closed tanks with a nitrogen pad. Sodium dithionite is generally supplied as dry powder. These commercial products may contain stabilizers, buffers (phosphates, carbonates), and chelates.

Dithionite was produced for the first time in 1906 by BASF in Germany in powder form. Initially, the product was obtained by the zinc dust process. Zinc is first converted into zinc dithionite in an aqueous solution with sulfur dioxide and then by sodium hydroxide to sodium dithionite and zinc oxide. Later on, a process was developed which uses the sodium amalgam from the mercury cell electrolysis of sodium chloride solution and converts this directly to sodium dithionite with sulfur dioxide. This process produces a material which is free of heavy metals and therefore stable. Chlorine-alkali electrolysis in Europe is changing from the amalgam process to the diaphragm process due to the mercury content of the wastewater. BASF later developed the formate process in which sodium formate is converted with bisulfite to sodium dithionite. Sodium formate is produced from carbon monoxide and sodium hydroxide.

Dithionite was used for the first time for bleaching of mechanical pulp in the 1930s. Initially, sodium dithionite was used in small amounts as a powder. The bleaching effect was limited because the bleaching time and the temperatures were too low. Good results were obtained when atmospheric oxygen was excluded. With the introduction of continuous bleaching processes such as tower bleaching, the use of solutions of dithionite proprietary blends became necessary to ensure their homogeneous mixing with stock. Another option is the use of cooled, alkalized solutions of sodium dithionite. At temperatures below 10°C, these solutions are so stable that they can be stored for long periods. This eliminates the complicated process of dissolving the powder.

Hydrose BASF-50 kg Drum – Premium Quality Sodium Hydrosulphite for Industrial Applications

Introduction

 

• Emon Enterprise is proud to offer Hydrose BASF, a high-quality Sodium Hydrosulphite (Na2S2O4) available in a 50 kg drum. Produced by BASF, one of the world’s leading chemical companies, this product is synonymous with superior quality, reliability, and performance. Hydrose BASF is widely used as a powerful reducing agent across multiple industries, including textiles, paper, and chemical manufacturing. Whether you are involved in large-scale dyeing processes, pulp bleaching, or complex chemical syntheses, Hydrose BASF provides the consistency and effectiveness you need to achieve optimal results.

Key Features and Benefits

 

• • Unmatched Purity: Hydrose BASF is recognized for its exceptional purity, ensuring that it delivers maximum effectiveness in various industrial applications. This high level of purity also helps to reduce the risk of contamination, ensuring that your processes yield the highest quality products.
  • Reliable Reducing Agent: Sodium Hydrosulphite is known for its potent reducing capabilities. In industries such as textiles, it plays a crucial role in processes like vat dyeing, where it helps dissolve dyes for even and long-lasting color application.
  • Consistent Quality: BASF's commitment to quality control ensures that every drum of Hydrose meets rigorous standards, providing you with consistent performance every time you use it.
  • Ideal for Bulk Use: The 50 kg drum packaging is designed for industrial applications, offering a substantial quantity that supports large-scale operations and reduces the need for frequent replenishment.
  • Eco-friendly and Safe: Hydrose BASF is produced with a focus on safety and environmental sustainability, making it a responsible choice for your business.

Applications

 

• Sodium Hydrosulphite, particularly from BASF, is a versatile chemical with a wide range of industrial applications. Below are some of the key areas where Hydrose BASF is most commonly used:

  1. Textile Industry:

     • Vat Dyeing: In the textile industry, Hydrose BASF is indispensable for vat dyeing processes. It acts as a reducing agent, converting vat dyes into their soluble form so that they can be absorbed by fabrics. This process is vital for achieving vibrant and uniform colors on textiles such as cotton, wool, and synthetic fibers.
     • Bleaching: Sodium Hydrosulphite is also used in the bleaching of textiles, helping to remove any residual dyes and brightening the fabric for a cleaner, more appealing appearance.

  2. Paper Industry:

     • Pulp Bleaching: The paper industry relies on Sodium Hydrosulphite for bleaching wood pulp. Hydrose BASF effectively reduces the color-causing agents in the pulp, resulting in brighter and whiter paper products. This is particularly important for producing high-quality paper and paperboard.

  3. Chemical Industry:

     • Reducing Agent in Chemical Synthesis: In the chemical industry, Sodium Hydrosulphite is widely used as a reducing agent in various synthesis processes. It is critical in the production of certain organic compounds and intermediates, contributing to the overall efficiency and success of chemical manufacturing.
     • Metal Ion Reduction: Hydrose BASF is also utilized in the reduction of metal ions, an important process in metal recovery and refining operations.

  4. Leather Industry:

     • Dyeing and Tanning: The leather industry benefits from Sodium Hydrosulphite in its dyeing and tanning processes. The chemical’s reducing properties make dyes more soluble and easier to apply, leading to uniform and long-lasting coloration in leather products.

  5. Food Industry:

     • Food Bleaching: Although not as common, Sodium Hydrosulphite can be used in the food industry as a bleaching agent. It helps to preserve the natural color of certain food products by preventing oxidation, making it a useful additive in food processing.

Technical Specifications

 

• • Product Name: Hydrose BASF
  • Chemical Name: Sodium Hydrosulphite
  • Chemical Formula: Na2S2O4
  • Appearance: White crystalline powder
  • Purity: ≥ 90%
  • Packaging: 50 kg drum
  • Manufacturer: BASF
  • Storage Conditions: Store in a cool, dry place away from direct sunlight and moisture. The drum should be tightly sealed when not in use to prevent degradation of the product.

Why Choose Hydrose BASF from Emon Enterprise?

 

• At Emon Enterprise, we understand the importance of quality and reliability in industrial chemicals. Hydrose BASF, with its exceptional purity and consistent performance, is the ideal choice for businesses that demand the best. When you purchase from us, you gain access to:

  • Trusted Quality: We source our Hydrose BASF directly from BASF, ensuring that you receive a product that meets the highest industry standards.
  • Competitive Pricing: Our strong relationships with suppliers allow us to offer competitive pricing, helping you manage costs without compromising on quality.
  • Expert Support: Our team of chemical experts is available to provide guidance on the application and handling of Hydrose BASF. Whether you need advice on product usage or troubleshooting, we are here to assist you.
  • Reliable Supply Chain: We maintain a robust supply chain and a well-stocked inventory, ensuring that your orders are fulfilled promptly and efficiently.
  • Nationwide Delivery: With our extensive logistics network, we offer fast and reliable delivery across Bangladesh, ensuring that your order arrives on time and in perfect condition.

Safety and Handling

 

• Handling Sodium Hydrosulphite requires care and attention. Always use appropriate personal protective equipment, including gloves, safety goggles, and protective clothing. Ensure that your work area is well-ventilated to avoid inhaling dust or fumes. In the event of skin or eye contact, rinse thoroughly with water and seek medical attention if necessary. Proper storage is crucial to maintaining the integrity of the product, so be sure to keep the drum sealed and stored in a dry, cool location.

Environmental Considerations

 

• Emon Enterprise is committed to environmental responsibility. Sodium Hydrosulphite should be handled and disposed of in accordance with local environmental regulations. Avoid releasing large quantities into the environment, as it can be harmful to aquatic life. We encourage our customers to follow best practices for the disposal of chemical waste to minimize environmental impact.

Ordering Information

 

• To place an order for Hydrose BASF-50 kg drum, visit our website or contact our sales team directly. We offer a variety of payment options and flexible delivery schedules to accommodate your business needs. Whether you require a single drum or bulk quantities, Emon Enterprise is your trusted source for high-quality industrial chemicals.

Conclusion

 

• Hydrose BASF is a premium-grade Sodium Hydrosulphite that delivers unmatched quality and performance across a wide range of industrial applications. From textile dyeing and pulp bleaching to chemical synthesis, this product is essential for businesses aiming to achieve the highest standards in their processes. At Emon Enterprise, we are dedicated to providing our customers with the best products, competitive pricing, and exceptional service. Optimize your industrial operations with Hydrose BASF-50 kg drum and experience the difference that superior quality can make. Contact us today to learn more or to place your order.