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bearing grouting material

Sodium Gluconate

Release time：2022-06-16 Author：Zhang Yujie



WUHAN HUAXUAN® SG-1

Sodium Gluconate is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be
considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent
and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British
Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical,
research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.
Specification
Compound Formula
C6H11NaO7
Molecular Weight
218.14
Appearance
White to off-white powder
Melting point
206 °C
Boiling Point
N/A
MLD number
MFCD00064210
IUPAC Name
sodium; (2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanoate
SMILES
[Na+].[O-]C(=O)[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO
Application
Sodium gluconate as retarder 
Sodium gluconate (SG) is usually employed as a supplementary material in polycarboxylate superplasticizer (PCE) system to enhance
the dispersion and dispersion retention.

Sodium gluconate is a commonly used retarder, and the incorporation of SG has been accepted as the most efficient way to improve
the basic performance of polycarboxylate superplasticizer (PCE) system in real concrete.
Effect of sodium gluconate on dispersion of （PCE）polycarboxylate superplasticizer
Gluconate grafted as side chain of PCE and the increase in length of PEO chain caused by addition of SG can provide contribution to dispersion. Competitive adsorption between SG and PCE would take place to reduce the dispersion, and the declining degree depends on the relative adsorption between PCE and SG. Dispersion of PCE-SG is not only dependent on added dosage of SG, but also decided by molecular structure of PCE.



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