Sodium Gluconate Chelating Agent Natriumgluconat HS 29181600 Powder C6H11NaO7

Sodium Gluconate Chelating Agent Natriumgluconat HS 29181600 Powder C6H11NaO7
 
Sodium Gluconate Product Information :
 
CAS No.: 527-07-1
Synonyms: Sodium (2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanoate, Sodium D-gluconate
Sodium gluconate is used as a chelating agent, as cleaning agent and also in textile dyeing, metal
surface water treatment and printing.
 
Sodium gluconate is a white granular crystalline solid, easily soluble in water. Its main feature is its excellent chelating power, especially in alkaline and concentrated alkaline solutions. It is the sodium salt of gluconic acid, produced by the fermentation of glucose. It is non-corrosive, non-toxic, biodegradable and renewable. It is resistant to oxidation and reduction even at high temperatures. Sodium gluconate forms stable chelate with calcium, iron, copper, aluminum and other heavy metals. Sodium gluconate is a chelating agent superior to EDTA, NTA and phosphonates.
 
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Sodium Gluconate Effect In Retarder:
Due to the different types of retarders, their retarding effects are also very different. The same theory cannot fully explain the retarding mechanism. The same retarder may have two or more mechanisms of action at the same time.
The organic retarder mainly slows down the hydration of C3S. Among the organic retarders, especially various hydroxy carboxylic acids and their salts, such as: tartaric acid, citric acid, apple, salicylic acid, gluconic acid and their salts are commonly used retarders, they are often fish accelerator or Accelerating agents are used in combination with fast-setting hard cement, and sodium gluconate has the best effect. The mechanism of action of inorganic retarder is that a layer of insoluble film is formed on the surface of cement particles to block the process of cement hydration. The retarding effect of inorganic salt retarders is not stable enough, so they are often not used.
There is no essential difference between the mechanism of excess retarder and the retarding mechanism of general retarders, but because of the high content of retarder, the remaining content of retarder in the liquid phase of fresh concrete is very high, whether it is adsorption The theory, precipitation theory, or the theory of controlling calcium hydroxide crystal growth all believe that cement hydration needs to overcome a greater energy barrier at this time, so it often takes a relatively long time, and even the cement hydration completely stops, and the coagulation cannot be completed in the end. , Resulting in non-condensing phenomenon. This is quite dangerous for engineering and will cause serious engineering quality accidents.