Construction chemicals are admixtures that are used with concrete, cement, and other construction materials to provide additional durability and workability to various structures. Concrete admixtures can provide some beneficial effects on concrete. Such as accelerating condensation, slow curing, reducing water consumption, and increasing plasticity. Sodium gluconate is a white to tan granulated to fine crystalline powder. It is highly soluble in water. Sodium gluconate powder can be used as a concrete admixture in construction. It has the function of a water reducing agent and a retarder in concrete. Sodium gluconate concrete admixture is usually used alone, but it can also be used in combination with other retarders.
|Appearance||White crystalline powder|
|Purity %||98 Min|
|Loss on drying %||0.50 Max|
|Sulfate (SO42-) %||0.05 Max|
|Chloride (Cl) %||0.07 Max|
|Heavy metals (Pb) ppm||10 Max|
|Reduzate (D-glucose) %||0.7 Max|
|PH (10% water solution)||6.2~7.5|
|Arsenic salt(As) ppm||0.2 Max|
|Packing & Loading||25 kg/PP bag, 26tons in 20’FCL without pallets; 1000kg/Jumbo bag on a pallet, 20MT in 20’FCL; 1150kg/Jumbo bag on a pallet, 23MT in 20’FCL;|
Kingsun Sodium Gluconate for Concrete
At present, the existing production methods of sodium gluconate include homogeneous chemical oxidation method, point solution oxidation method, heterogeneous catalytic oxidation method, enzyme reaction method, and fermentation method.
Sodium gluconate produced by homogeneous chemical oxidation has the advantages of high conversion rate, simple process, and low cost. However, there are many steps and many by-products, and the product is difficult to decompose, so its application is limited.
The point oxidation method is rarely used in industrial production because of its high energy consumption and difficulty in control.
The heterogeneous catalytic oxidation process is simple, the reaction is stable and easy to control, the reaction conditions are mild, and the glucose conversion rate is about 95%. The disadvantage is that after being recycled for a certain number of times, the catalytic effect is reduced, the glucose conversion rate is reduced, the reaction time is prolonged, and even the catalyst has no catalytic activity. Therefore, the catalyst must be scrapped and replaced, which correspondingly increases the catalyst consumption per unit product and makes the production cost of sodium gluconate higher.
Biological fermentation methods include fungal fermentation and bacterial fermentation processes, of which the process of preparing sodium gluconate by Aspergillus niger fermentation is more commonly used. In this process, glucose is used to obtain glucose lactone and hydrogen peroxide by simple dehydrogenation of glucose oxidase produced by Aspergillus niger, and a certain amount of NaOH solution is added to maintain a certain pH value to obtain sodium gluconate. The biological fermentation method has gradually become the main production method of sodium gluconate.
The enzymatic method is to use enzyme preparation (glucose oxidase plus catalase) to oxidize glucose to gluconic acid while adding NaOH to neutralize to produce sodium gluconate and then it is finished. The enzymatic method saves nutrients and auxiliary materials, the process is simple, the product purity is high, and the energy consumption is low. But glucose oxidase and catalase are more expensive. However, as the level of enzyme preparations increases, the activity of enzymes increases, and the cost of enzymes decreases. In the long run, the replacement of fermentation processes by enzymatic processes will become the future development trend of the industry.
Where to Buy Sodium Gluconate Admixture
Henan Kingsun Chemical Co., Ltd. is a comprehensive entity that specializes in the development, production, and trade of concrete admixtures. We have our factory and R & D team. We promote our products to the international market at a very competitive price. Kingsun has its own ISO9001 quality management system, ISO14001 environmental management system, OHSAS18000 occupational health, and safety management system, etc. In addition, Kingsun also has awarded the title of AAA Enterprise and China Top 100 Light Industry Enterprises.
Kingsun has focused on the production of high-quality sodium gluconate 98% for many years. Our products have won high praise from our customers because of its high quality. Moreover, through the development of so many years, we have established long-term and stable trade with many customers. We have established an extensive global business network. Kingsun has many years of foreign trade experience and has a high-quality management team. We pursue high-quality products and excellent service. Besides, we always regard efficiency, innovation, and practicality as our business philosophy. If you are looking for high-quality sodium gluconate, Kingsun company is your best choice. Welcome to leave a message to get a free quote.