White Crystalline Powder Sodium Gluconate CAS 527-07-1 Water Reducer C6H11NaO7

White Crystalline Powder Sodium Gluconate CAS 527-07-1 Water Reducer 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. It is non-corrosive, non-toxic, biodegradable and renewable. It is resistant to oxidation and reduction even at high temperatures.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. 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.

Specification:

Sodium Gluconate Effect In Retarder:

Because of the different kinds of retarder, the retarding effect is also very different. The same theory cannot fully explain the deceleration mechanism. The same retarder may have two or more acting mechanisms simultaneously.
Organic retarders mainly slow the hydration of C3S. In organic retarders, especially various hydroxyl carboxylic acids and their salts, such as: tartaric acid, citric acid, apple, salicylic acid, grape acid and its salts are commonly used retarders, they are often used as fish promoters or accelerators and fast setting hard cement combined with the use of sodium gluconate the best effect. The mechanism of inorganic retarder is to form an insoluble film on the surface of cement particles and prevent the hydration process of cement. Because the retarding effect of inorganic salt retarder is not stable enough, it is often not used.
Excessive retarding mechanism of retarder and general retarded mechanism of retarder, there is no essential difference between but because of the high concentration of retarder, the remainder of the new concrete retarder in the liquid phase content is very high, whether the adsorption theory, theory of precipitation, or control of the calcium hydroxide crystal growth theory all think at this point the cement hydration greater energy barrier to overcome, so often need a long time, Even cement hydration stops completely, and the cement is unable to set. And produce non-condensation phenomenon. This is quite dangerous to the project and can cause serious engineering quality accidents.