Sodium gluconate-D-Sodium gluconate
CAS NO.:527-07-1
HS CODE: 29181600
Sodium gluconate Color :White to light yellow
Sodium gluconate Appearance:Crystalline particles or powder
Sodium gluconate Construction industry
Sodium gluconate in the construction industry is mainly used as a concrete admixture with dual functions of retarding coagulation and reducing water
Water reducing agent, retarding agent
Sodium gluconate: 
Water-reducing agent, retarder;
Special detergent for steel and glass bottles;
Slow-release scale inhibition effect.
Sodium gluconate: -printing and dyeing industry
Sodium gluconate: -agriculture

Industrial Applications and Corresponding Dosages of Sodium Gluconate

Sodium gluconate (CAS 527-07-1, E576) is a biodegradable, non-toxic, multi-functional industrial chemical widely recognized for its strong chelating performance, excellent water solubility, and stable properties in alkaline environments. It has become a high-value, eco-friendly additive across multiple industrial sectors, with well-defined, application-specific dosage ranges optimized for different production scenarios.

1. Concrete Retarder and Water-Reducing Agent

As one of the most widely used industrial applications, sodium gluconate is a staple additive in the construction industry, especially for mass concrete, hot-weather concreting, and ready-mix concrete projects. It effectively delays the hydration heat release of cement, prevents thermal cracking, extends slump retention, and provides longer working time for complex pouring operations, while causing minimal negative impact on the later-age strength of concrete.

• ‌Typical Dosage‌: 0.02% – 0.1% by weight of cement. For most conventional pumping concrete mixes, the recommended range is 0.03% – 0.08%. It is critical to conduct pre-use setting time tests, as excessive dosage may lead to over-retardation that keeps concrete unset for more than 24 hours.

2. Industrial Water Treatment (Scale and Corrosion Inhibitor)

In circulating cooling water systems, boiler water, and reverse osmosis systems, sodium gluconate acts as an efficient scale and corrosion inhibitor. It chelates calcium, magnesium, and other metal ions to prevent the formation of hard scale on equipment surfaces, and forms a protective adsorption film on metal surfaces to reduce corrosion rates. It also shows excellent synergistic effects when compounded with aluminum and other water treatment agents.

• ‌Typical Dosage‌: 10 – 50 mg/L in the treated water system. For high-hardness circulating cooling water, the optimal dosage usually falls in the 20 – 50 mg/L range to achieve stable anti-scaling and anti-corrosion performance.

3. Metal Surface Cleaning Agent

Sodium gluconate is a high-performance cleaning agent for steel, glass bottles, and precision metal parts. It can quickly dissolve and remove rust, oxide layers, oil stains, and residual mineral deposits on steel surfaces, and eliminate stubborn limescale and dirt on inner and outer walls of glass bottles without causing corrosive damage to the base material.

• ‌Typical Dosage‌: 1% – 5% by total weight of the cleaning solution. For heavy rust removal on steel surfaces, the dosage can be adjusted to 3% – 5% to significantly improve cleaning efficiency.

4. Electroplating Industry Additive

In ferronickel alloy electroplating and other plating processes, sodium gluconate serves as a brightener and complexing agent. It clarifies the plating solution, promotes the formation of fine, uniform crystallization on the plated surface, and improves the leveling performance of the plating layer, avoiding pitting and uneven coating defects.

• ‌Typical Dosage‌: 0.1 – 0.2 g/L in the electroplating bath. This narrow dosage window ensures a bright, smooth plated surface and stable long-term operation of the plating solution.

5. Textile Dyeing and Printing Auxiliary

As a powerful chelating agent and color equalizer in the textile industry, sodium gluconate sequesters heavy metal ions in dyeing baths to prevent uneven dyeing and color spots, stabilizes the pH value of the working solution, and improves the color fastness and color uniformity of dyed fabrics.

• ‌Typical Dosage‌: 0.1% – 3% by total weight of the dyeing bath. For textile finishing agents, the recommended dosage range is 0.5% – 5% of the total finishing agent mass to maintain processing bath stability.

All the above dosage ranges are general industrial reference standards, and actual on-site usage should be adjusted according to specific raw material properties, process parameters, and pre-conducted small-scale trial results.

Sodium gluconate is a common organic acid sodium salt with a wide range of uses. Industrial-grade sodium gluconate is often used in the construction, chemical and other industries. In the construction industry, it is often used as a cement additive to reduce water and slow setting. In the chemical industry, it is used as a basic raw material for the production of other gluconates, gluconic acid and gluconolactone. It also has good applications in chemicalbook electroplating, cleaning agents, film manufacturing, water treatment, etc.; food-grade sodium gluconate is often used in the food and pharmaceutical industries. In the food industry, it is used as a food additive to adjust taste, adjust acidity, dehydrate, solidify, etc. In the pharmaceutical industry, it can adjust acid-base balance and maintain extracellular osmotic pressure.
Sodium gluconate, also known as sodium pentahydroxycaproate, is a white or light yellow crystalline powder that is easily soluble in water, slightly soluble in alcohol, and insoluble in ether. Sodium gluconate is a deep-processed product of glucose and is also the basic raw material for the preparation of gluconolactone, gluconate (zinc, copper, ferrous salts), etc. It can be used as a chemicalbook nutritional supplement, curing agent, buffer, etc. in the food industry. The product has good thermal stability and is non-deliquescent. Due to its excellent chelating properties, it is widely used in water treatment, electroplating, metal and non-metal surface cleaning, cement production and other industrial sectors. It has a wide range of uses in chemical, food, pharmaceutical, light industry and other industries.