Sodium gluconate Application
Steel surface cleaning agent used :
If you need plated steel surfaces bowl , chrome , tin , nickel- plated to suit special applications such as the manufacture of tinplate , galvanized plate , chrome plated ( electrical degrees ) , with its slab surface shall be rigorously cleaned , the coating material and steel the surface of a solid combination , this time adding its sodium gluconate cleaning agents will reach very good results. This has been confirmed by a large international company manufacturing tinplate .
Used as a cement admixture :
After a certain amount of glucose added to the cement , sodium can increase the plasticity and strength of the concrete , and there is blocking effect
, Postpone the concrete during the initial and final solidification , such as adding 0.15% of sodium gluconate , can be extended at the beginning of the coagulation time of more than 10 times the concrete , the concrete is moldable time from hours to days to extend , without affecting the its fastness. Plasticity and delaying the initial solidification time is a very important issue in the concrete operations, such as high temperatures and large-scale construction projects seasonal jobs , delaying the initial solidification time is a problem, sodium gluconate can satisfactorily solve this problem. Also glued well at high temperatures is more difficult , added sodium gluconate concrete after high temperature at 170 ℃ , within a few hours of plastic , so these issues can be satisfactorily resolved . Therefore, as a cement admixture of sodium gluconate has been widely used in foreign countries important building projects, such as the Middle East, a lot of bridge engineering . But we have yet to promote the use of domestic applications in this regard , is said to have refined cellulose sodium in papermaking wastewater , the effect of sodium gluconate is simply not comparable .
But can also used in electroplating , film manufacturing industry.
As a multi- hydroxy acid type excellent corrosion inhibitor sodium gluconate , as with many of the above specific properties, such as can be willing to work hard in the application of technology , will be developed into a big industry .
Sodium gluconate is used in the construction industry
Concrete is a combination of materials made of cement , aggregate, admixtures and water. Concrete is made of artificial material for all the most abundant . Three-quarters of concrete aggregate, however, the most active ingredient in concrete grout . The nature and properties of concrete depends mainly on the nature of the grout . Concrete admixtures can provide some beneficial effects , such as accelerated clotting , slow solidification , the air into a bubble-like existence , reduce water consumption and increase the plasticity and so on. Usually use several kinds in the cement admixture , the admixture of the various applications can be enhanced in some other.
Sodium gluconate can be used as an admixture in concrete , it features in concrete as follows : water reducer and retarder
Sodium gluconate is generally used alone , but in combination with other retarders such as carbohydrates and used together with phosphate . Sodium gluconate is a crystalline powder. Is produced under proper conditions and control requirements . This compound is chemically pure and non-corrosive. Quality is constant . These features ensure that a reliable and reproducible results in the application.
As a reducing agent sodium gluconate
By adding a reducing agent, the water to cement ratio (W / C) can be reduced . Sodium gluconate can be obtained by adding the following effects: 1 , enhance the work of the ratio of water to cement (W / C) remain unchanged, adding sodium gluconate can enhance workability . At this time , from the sodium gluconate is a plasticizer . In less than 0.1% of sodium gluconate plus the amount which is proportional to the degree of improvement and the amount of work . 2 , enhancing the strength of the cement when the concrete content is kept constant and the water content can be reduced ( i.e., W / C lower ) . When the amount of sodium gluconate was 0.1 %, the amount of water can be reduced by 10%. 3 , reducing the amount of water and cement with the ratio to reduce the cement content , W / C ratio is kept constant. In this case, the reduction agent is sodium gluconate as a cement . Under normal circumstances, these two aspects of the performance of concrete , said it was important : contraction and generate heat.
Sodium gluconate as a retarder
Sodium gluconate can significantly delay the start time and the end of the solidification of the concrete. In the amount of 0.15 % or less, with the logarithm of the initial solidification increase the amount of time proportional relationship, that with increase the amount to double clotting time delay to the start times , which makes it able to work from the time few hours to a few days without compromising on strength. Especially hot days and a longer time to be placed , this is an important advantage .
Used as a cleaning agent bottles :
Beverage industry, food industry , brewing industry, the number of days to hundreds of millions of dollars in glass bottles, such as soda bottles , beer bottles, milk bottles , cans bottles, soy sauce , wine bottles , etc. , the cleaning work is a very important thing, cleaning pharmaceutical formulations agent is a higher degree of difficulty of the technical work . Currently not yet appeared an ideal drug . The main problems are: detergent is not strong, easy to plug the washing machine nozzle and pipe ; rust on bottle labels and bottlenecks to dye force is not ideal ; washed trace residues on food security is not ideal ( such as phosphate residues ) ; wash water discharge into public nuisance ( can not comply with the national standard ) . Such as sodium gluconate use in pharmaceutical formulations in their glass as the main cleaning agent , the above problems can be solved. ( Eighties bottling has been done in Shanghai , Shanghai brewery large trials have identification to prove ) this application is not yet developed , if a market has great potential .
Water is used as a stabilizer :
Because sodium gluconate has excellent corrosion and scale effect, it is widely used in water stabilizer , such as the petrochemical business cycle cooling water system , low pressure boilers, engine cooling water systems and other treatment agents . Because it has the following specific advantages : ⑴ obvious coordination effects. Suitable molybdenum, silicon, phosphorus , tungsten, nitrite formulations , the coordination Effect , the inhibition effect is greatly improved. ⑵ corrosion rate increases with increasing temperature . General corrosion inhibition efficiency increased with increasing temperature drop , or even completely useless. But contrary sodium gluconate , corrosion rates within a certain range to improve with increasing temperature , for example, carbon steel and other materials test , the temperature rose from 77 ℃ F on to 120 ℃ F, its average rate of 5% buffer above . Therefore, this singular feature of sodium gluconate , the higher the temperature of the system from low to high temperatures or temperature variation system , is ideal to use as a corrosion inhibitor . ⑶ scale capability: calcium , magnesium , iron complex has a strong ability to scale so strong, particularly Fe3 + chelation excellent , even in the full scope of the role of internal PH . ⑷ eliminate pollution. Using sodium gluconate as circulating cooling water corrosion inhibitor , to eliminate pollution , which is an advantage other corrosion inhibitor currently in use can not be compared.
Used in medicine :
Regulation of acid-base balance in the human body to restore nerve function properly , but also for the same purpose , used in food additives