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Sodium Gluconate
Sodium Gluconate(Tech grade)
Product introduction
Product Details Chemical name :Sodium Gluconate Specification : Tech grade Synonyms: Gluconic acid, sodium salt; Gluconic scid, monosodium salt Molecular Formula:C6H11O7Na Molecular weight: 218.14 CAS No.: [527-07-1] Performance and usage:
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Product description

Product Details



Introduction to sodium gluconate:
  • Sodium gluconate is widely used in industry. Sodium gluconate can be used as a high-efficiency chelating agent in the fields of construction, textile printing and metal surface treatment and water treatment, steel surface cleaning agent, glass bottle cleaning agent, aluminum oxide coloring in electroplating industry. The concrete industry is used as a high-efficiency retarder, high-efficiency water reducer, and the like.

Basic Information

  • English name: Gluconic acid, sodium salt
  • English alias: SODIUM GLUCONATE RE; Gluconic Acid Sodium; Sodium gluconate; sodium 2,3,4,5,6-pentahydroxyhexanoate (non-preferred name)
  • Specification : Tech grade
  • Synonyms: Gluconic acid, sodium salt; Gluconic scid, monosodium salt
  • CAS No.: 527-07-1
  • EINECS number: 208-407-7
  • Molecular formula: C6H11O7Na
  • Molecular weight: 218.14
  • Melting point: 206-209 ° C
  • Appearance: white crystalline granules or powder.
  • Solubility: Very soluble in water, slightly soluble in alcohol, not soluble in ether. 
  • Specifications: in line with the FAO standards FAO / WHO; USPXXIII version; corporate standards; also according to customer requirements.
  • Packing: 5Kg inner plastic outer bag; also according to customer requirements.
  • Related Categories: Biochemistry; Glucose; Sugar Acids; Sugars; Dextrins, Sugar & Carbohydrates; Electroplating Chemicals; Chemical Additives; Other Nutritional Supplements; Food Additives; Nutrition Enhancers (Nutrition Supplements; Water Treatment Chemicals; Scale Inhibitors ;organic metal salts;biochemical reagents; stabilizers; small molecule inhibitors; solvents; inorganic compounds and salts; organic chemicals, widely used in textile printing, printing and metal surfaces, water treatment, chelating agents, steel surface cleaning agents, cleaning Glass bottle, cement chelating agent, electroplating and alumina dyeing industry

application:

Used as a steel surface cleaner:

  • If the steel surface needs to be chrome-plated, chrome-plated, tin-plated or nickel-plated to suit special applications, such as making tinplate, galvanized sheet, chrome plating (electricity), etc., the surface of the slab must be strictly cleaned to make the coating and steel. The surface is firmly bonded, and the addition of sodium gluconate to the cleaning agent at this time will achieve a very desirable effect. This has been confirmed by large companies that manufacture tinplate internationally.

Used as a cement admixture:

  • Adding a certain amount of sodium gluconate to the cement can increase the plasticity and strength of the concrete, and has a retarding effect, that is, delay the initial and final solidification period of the concrete, for example, adding 0.15% sodium gluconate, the initial setting time of the concrete Extending more than 10 times, that is, extending the plastic molding time from a few hours to a few days without affecting its fastness. Plasticity and delaying the initial solidification time are very important issues in concrete operations. For example, in high temperature season construction and large engineering operations, delaying the initial solidification time is a problem, and sodium gluconate can solve this problem satisfactorily. In addition, it is difficult to glue the oil well at high temperature. The concrete after adding sodium gluconate can be plasticized in a few hours at a high temperature of 170 ° C, so the above problem can be satisfactorily solved. Therefore, sodium gluconate has been widely used as a cement admixture in important construction projects abroad, such as a large number of bridge projects in the Middle East. However, our domestic application in this area has not been promoted and applied. It is said that sodium cellulose sulfonate is extracted in papermaking wastewater, and its effect is incomparable with sodium gluconate.
  • It can also be used in the electroplating, film manufacturing industry. As a polychlorinated carboxylic acid type excellent corrosion and scale inhibitor sodium gluconate, due to the above-mentioned many specific qualities, such as the ability to apply technology, will be developed into a large industry.

 

 

Application of sodium gluconate in construction industry

  • Concrete is a composite material made of cement, aggregate, admixture and water. Concrete is the largest of all manufactured materials. Three-quarters of the concrete is aggregated, but the most active component in concrete is cement slurry. The properties and properties of concrete are mainly determined by the nature of the cement slurry. Admixtures in concrete can provide beneficial effects such as accelerated solidification, delayed solidification, air bubbling, reduced water consumption and increased plasticity. Several blending agents are typically used simultaneously in the cement, and the various blending agents can reinforce each other in some applications.
  • Sodium gluconate can be used as a blending agent in concrete. Its function in concrete is as follows: water reducing agent and retarder
  • Sodium gluconate is generally used alone, but can also be used in combination with other retarders such as carbohydrates and phosphates. Sodium gluconate is a crystalline powder. It is produced under conditions that are properly regulated and controlled. This compound is chemically pure and non-corrosive. The quality is constant. These features ensure reliable and repeatable results in your application.

Sodium gluconate as a water reducing agent

  • By adding a water reducing agent, the water to cement ratio (W/C) can be reduced. By adding sodium gluconate, the following effects can be obtained: 1. Improve workability When the water to cement ratio (W/C) is constant, the addition of sodium gluconate can improve workability. At this time, sodium gluconate functions as a plasticizer. When the amount of sodium gluconate is less than 0.1%, the degree of improvement in workability is proportional to the amount added. 2. Increase the strength When the cement content remains unchanged, the water content in the concrete can be reduced (ie, the W/C is reduced). When the amount of sodium gluconate added is 0.1%, the amount of water added can be reduced by 10%. 3. Reducing the cement content The water and cement content are reduced in the same proportion, and the W/C ratio remains unchanged. At this time, sodium gluconate is used as a cement reducing agent. In general, the following two aspects are important for the performance of concrete: shrinkage and heat generation.

Sodium gluconate as a retarder

  • Sodium gluconate can significantly retard the initial and final setting time of the concrete. When the dosage is 0.15% or less, the logarithm of the initial solidification time is proportional to the amount of addition, that is, the compounding amount is doubled, and the time of initial solidification is delayed by ten times, which enables the working time to be very high. It takes a few hours to extend to a few days without compromising strength. This is an important advantage, especially on hot days and when it takes longer to place.

 

Used as a special cleaning agent for glass bottles

  • In the beverage industry, the food industry, the brewing industry, hundreds of millions of glass bottles, such as soda bottles, beer bottles, milk bottles, canned bottles, soy sauce bottles, wine bottles, etc., the cleaning work is a very important thing, cleaning The formulation of the agent is a difficult technical task. At present, there is no ideal drug in China. The main problems are: the detergency is not strong, and it is easy to block the nozzle and pipeline of the bottle washing machine; the staining power of the bottle and the bottleneck rust is not ideal; the trace residue after washing is not ideal for food safety (such as phosphate Residue); the washing water is discharged into public hazard (cannot meet the national standards). If the sodium gluconate is used as the main ingredient in the formulation of the glass bottle cleaner, the above problems can be solved. (In the 1980s, Shanghai Soda Water Plant, Shanghai Brewery made large-scale tests, and there are identification certificates.) The application in this area has not been developed domestically. If the market is formed, the potential is great.

​Used as a water stabilizer

  • Because sodium gluconate has excellent corrosion and scale inhibition effects, it is widely used as a water quality stabilizer, for example, as a petrochemical enterprise circulating cooling water system, a low pressure boiler, an internal combustion engine cooling water system and the like. Because it has the following specific advantages: (1) has a significant coordination effect. Applicable to molybdenum, silicon, phosphorus, tungsten, nitrite and other formulations, due to the coordination effect, the corrosion inhibition effect is greatly improved. (2) The corrosion inhibition rate increases with increasing temperature. Generally, the corrosion inhibitor decreases with the increase of temperature, and even loses its effect completely. However, sodium gluconate is the opposite. The corrosion inhibition rate increases with a certain temperature within a certain range. For example, in the test of carbon steel and other materials, the temperature rises from 77°CF to 120°CF, and the buffer rate increases by 5% on average. the above. Therefore, the singularity of sodium gluconate is ideal for use as a corrosion inhibitor for higher temperature systems or temperature-dependent systems from low to high temperatures. (3) Strong anti-scaling ability: It has strong complexing ability to calcium, magnesium and iron salt, so the anti-scaling ability is very strong, especially for Fe3+, it has excellent chelation, even in the whole PH range. (4) Eliminate public hazards. The use of sodium gluconate as a circulating cooling water corrosion and scale inhibitor to achieve pollution, which is currently unmatched by other corrosion and scale inhibitors.

For medical use

  • Regulates the acid-base balance in the human body to restore normal nerve function, and can also be used for food additives for the same purpose.

​resolve resolution

  • In the industry, glucose-containing substances (such as grains) are generally used as raw materials, and gluconic acid is first obtained from glucose by fermentation, and then neutralized by sodium hydroxide to obtain sodium gluconate. Electrolysis and oxidation can also be used. synthesis. Most of China uses chemical oxidation-secondary bromination to produce and synthesize.
  • Depending on the type of fermentation enzyme used, the fermentation process can be divided into two clocks, one using the enzyme of Aspergillus Niger and the other, the latter being dehydrogenated to form lactone by means of glucose, followed by decomposition of the ester.
  • Sodium gluconate can also be obtained directly from glucose fermentation. At this time, the composition of the fermentation base may be: glucose 250-350 g/L, magnesium sulfate heptahydrate 0.2-0.3 g/L, diammonium hydrogen phosphate or urea 0.4-0.5 g/L. This substrate must be sterilized. During the fermentation process, the temperature is controlled to 30-32 degrees, the pH is controlled to 5.5-6.5 by 30%~50% sodium hydroxide, and the fermentation process lasts 40~100h. Then, the microorganisms are removed by filtration and washing, the activated carbon is decolored, and then filtered, concentrated, or spray dried to obtain a finished product.

product information

  • Product: Calcium gluconate-->copper gluconate-->zinc gluconate-->sodium gluconate
  • Raw material: sodium hydroxide-->sodium carbonate-->D-anhydrous glucose-->calcium gluconate-->gluconic acid

Security

  • Sodium gluconate is non-toxic. Sodium gluconate present in water and its chelate complex with heavy metal ions can be rapidly and completely degraded by ordinary biochemical treatment. The heavy metal ions released during the degradation process can be removed by precipitation or adsorbed on the sludge formed during the wastewater treatment process.

Nature and stability

  • Use and store according to specifications, no decomposition will occur, avoid contact with oxides.

Packaging, storage and transportation

  • Packing: neutral packaging, plastic woven bag, 25kg per bag
  • Storage: Store in a waterproof, rainproof place to avoid agglomeration. If there is agglomeration, pulverization or dissolution, it will not affect the use effect. The plastic bag is woven in a woven bag or a kraft paper bag. Store in a cool, well-ventilated place. Use and store according to specifications, no decomposition will occur, avoid contact with oxides. Do not store with toxic and contaminated chemicals. The product is harmless and will not deteriorate after long-term storage. It is not a flammable or explosive substance

Security term

  • S24/25Avoid contact with skin and eyes.
  • Avoid contact with skin and eyes.
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