Sodium gluconate

Sodium gluconate is a compound with formula NaC6H11O7. It is the crystalline sodium salt of gluconic acid. It has the E number E576 and CAS number 527-07 1. Sodium gluconate is produced through fermentation of glucose and is  widely used in textile dyeing, printing and metal surface water treatment. It is also used as a chelating agent, a steel surface cleaning agent, a cleaning agent for glass bottles, and as a chelating agent for cement, plating and alumina dyeing industries. It is a white granular or powdered form which has excellent water solubility.

Product name：Sodium gluconate

Also known as：Gluconic acid sodium salt;SODIUM GLUCONATE RE；Gluconic Acid Sodium；

CAS No.：527-07-1

EINECS No.：208-407-7

Molecular formula：C6H11NaO7

Molecular weight：218.14

Melting point：206-209℃

Appearance：White crystalline granular or powder.

Solubility：Excellent water solubility.

Package：25Kg paper plastic bag.

Quantity per 20’FCL:25mts

Application：

1.Used for steel surface cleaning agent:

   Steel surface for plating bowls, chrome plating, tin plating, nickel plating, to adapt to the special purpose, such as tin, galvanized sheet, chrome plated surface (electric), etc., the billet surface must pass strict cleaning, solid combination, make steel surface coating and then cleaning reagent adding sodium gluconate it will achieve the ideal effect.This has been the international manufacturing tin confirmed by a big company.

2.Used as cement admixture:

   Cement after adding a certain amount of sodium gluconate, can increase the plasticity and strength of concrete, and there are retarded delay the initial and final solidification time of concrete, such as adding 0.15% sodium gluconate, solid initial setting time of concrete can be extended more than 10 times, and the plastic concrete is time extend from a few hours to a few days, without affecting its prison.Plasticity and delay the initial solidification time is a very important problem in the concrete operation, such as construction in high temperature season and large engineering work, delay the initial solidification time is a difficult problem, sodium gluconate can be successfully solves the problem.Other high temperature cementing Wells is difficult, after adding the sodium gluconate concrete under 170 ℃ high temperature, the plastic within a few hours, so it can successfully solve the above problems.So sodium gluconate as cement admixture have been extensively applied in the important construction engineering in foreign countries, such as a large number of bridge engineering in the Middle East.But our domestic application also has not been popularized in this respect, it is said in the paper making waste water from cellulose sulfonic acid sodium, the effect with sodium gluconate is not at all.

3.The application of sodium gluconate in the construction industry

   Concrete is a kind of composite material, composed of cement, aggregate, admixture, and water.Concrete is the maximum amount of artificial material of all.Is three-quarters of the concrete aggregate, however, in the concrete is the most active ingredient in cement slurry.The properties and performance of concrete mainly depends on the properties of the slurry.In the concrete admixture can provide some beneficial effects such as accelerating the solidification, delay, make the air bubble exists, solidification to reduce water consumption and increase the plasticity and so on.Usually used at the same time several kinds of admixture in cement, a variety of different admixture can reinforce each other in some applications.

Sodium gluconate can be used as admixture in the concrete, its function is as follows: in the concrete water reducing agent and retarder

Sodium gluconate is commonly used alone, but also with other retarder, such as carbohydrates and combination use of phosphate.Sodium gluconate is a crystalline powder.Is under the condition of proper regulation and control.This compound is chemically pure and non-corrosive.The quality is constant.These features can ensure that it is reliable and repeatability in the application of the results.

4.Sodium gluconate as water reducing agent

   By adding water reducing agent, water to cement ratio (W/C) to reduce.By adding sodium gluconate can obtain the following results: 1, improve workability in the water to cement ratio (W/C) under the condition of invariable, adding sodium gluconate can improve the workability.At this point, the sodium gluconate is a function of the plasticizer.In the amount of sodium gluconate and under 0.1%, the degree of its improved workability is proportional to the amount.2, enhance strength remain unchanged when the cement content and the water content in concrete can reduce (that is, the lower W/C).When the addition amount of 0.1% of sodium gluconate, water content can be reduced by 10%.3, to reduce the cement content and cement content to reduce in proportion to water, W/C ratio remains constant.At this point, the reducing agent sodium gluconate as cement.In general, the following two aspects to the performance of concrete is very important: contraction and generate heat.

5.Sodium gluconate as a retarder

   Sodium gluconate can significantly delay the start and the end of solidification of concrete time.The dosage of 0.15%, starting time of solidification of logarithm and with addition quantity proportional relationship, namely with addition amount plus one times, and initial solidification time delay to ten times, which makes working time extend from a few hours to a few days and the intensity of undamaged.Especially in hot weather and need a place for a long time, this is an important advantage.

6.Special cleaning agent for glass bottle

   Days of beverage industry, food industry, fermentation industry with billions of glass bottles, such as soda bottles and beer bottles, milk bottles, tin, capped, bottles, etc., the cleaning is a very important thing, cleaner medicine agent formula is a difficult technical work.At present domestic has not yet appeared a kind of ideal medicament.The main problems are: detergent force is not strong, easy to jam bottle washer nozzle and the pipe line;Rust on the bottle to stick and bottlenecks to force is not ideal;After washing trace residues on food safety is not ideal, such as phosphate residue);Wash water discharge into public nuisance (can't conform to the provisions of the state standard).As in its glass cleaner agent use sodium gluconate as the main body, can solve the above problem.(eighty s has soda plant in Shanghai, Shanghai brewery for large trials, there are technical appraisement) the application of the domestic is not development, if the formation of the market, has a great potential.

7.Used as a water quality stabilizer:

   Because the sodium gluconate has excellent scale and corrosion inhibitor, so it is widely used in water quality stabilizer, as a petrochemical enterprise circulating cooling water system, for example, low pressure boiler, the internal combustion engine cooling water system treatment agent, etc.Because it has the following specific advantages: (1) has obvious coordination effect.Suitable for molybdenum, silicon, phosphorus, such as tungsten, nitrite formula, due to the coordination effect, the corrosion effect is greatly increased.2 the corrosion rate increases with temperature rise.As the temperature rises, the general corrosion inhibitor corrosion rate decreased, even completely.But sodium gluconate on the contrary, the corrosion rate within a certain range increase with temperature, and the test of the material such as carbon steel, for example, the temperature from 77 ℃ to rise to 120 ℃ F, F the buffer rate increase by more than 5% on average.So sodium gluconate the exotic features of high temperature of the system or system from low to high temperature is warm, for the use of corrosion inhibitors is very ideal.Scale inhibition ability: (3) of calcium, magnesium, iron has a strong complexation ability, scale inhibition ability is very strong, so special to Fe3 + has excellent chelation, even within the PH range.(4) public hazards.Using sodium gluconate as circulating cooling water scale inhibitor and corrosion inhibitor, reach out public nuisance, it is currently used by other incomparable advantages of scale inhibitor and corrosion inhibitor.

8 Application in pharmaceuticals

   Can adjust the body acid-base balance, to restore normal nerve function, for the same purpose, used in food additives