SODIUM GLUCONATE- ▸ Cleaning: Chelating agent in industrial and bottle-washing formulations
- ▸ Construction: Set retarder and water reducer for concrete and mortar
- ▸ Metal treatment: Surface conditioning and alkaline derusting
- ▸ Water treatment: Scale and corrosion control via sequestration
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →Sodium gluconate (CAS 527-07-1) is the sodium salt of gluconic acid (C6H11NaO7), a highly effective chelating and sequestering agent that excels in alkaline conditions. It binds calcium, iron and other metal ions, which makes it a concrete set retarder and water reducer, a chelant in industrial and bottle-washing cleaners, and a sequestrant in metal surface treatment and textile processing. It is a white, water-soluble crystalline powder and is recognized as readily biodegradable. Identity: PubChem.
What is sodium gluconate?
Sodium gluconate is the sodium salt of gluconic acid, produced by fermentation of glucose. Its multiple hydroxyl groups make it an outstanding sequestrant for di- and trivalent metal ions, and unusually it chelates more strongly as pH rises — it holds iron and calcium effectively in strongly alkaline solutions where many chelants fail. It is non-corrosive, water-soluble and readily biodegradable.
Applications by sector
Construction. Sodium gluconate is a concrete and mortar admixture that retards set and reduces water demand, improving workability and strength; dose is small and must be controlled because over-dosing extends set markedly. Industrial & bottle-wash cleaning. It is a chelant/builder in alkaline cleaners, CIP, bottle washing and metal cleaning, sequestering hardness and preventing scale and redeposition. Metal surface treatment. It is used in alkaline derusting, electroplating and aluminum etching baths. Textiles & water treatment. It serves as a sequestrant in scouring, bleaching and as a scale-control agent. Food and pharmaceutical use requires a separate food/USP grade.
Grades and forms
Specify technical/industrial grade for construction, cleaning and water treatment, or food/USP grade where regulatory status is required. It is supplied as a white crystalline powder or granule; particle size and assay are graded to the application and documented on the CoA.
Handling and documentation
Sodium gluconate is a stable, water-soluble, non-corrosive powder; manage dust per the Safety Data Sheet (SDS). Each lot ships with a Certificate of Analysis (CoA) documenting assay and key properties.
Bulk supply and RFQ
RawSource supplies sodium gluconate in bags, super sacks and bulk to construction-admixture, cleaning, metal-finishing and water-treatment manufacturers, with CoA and SDS per lot. Submit an RFQ with your grade, target quantity and ship-to for a current quote. Related chelation chemistry: HEDP disodium salt.
Typical Properties
Typical reference values, not a specification; the Certificate of Analysis (CoA) for the lot governs.
| Property | Typical Value |
|---|---|
| Chemical Name | Sodium gluconate (sodium salt of gluconic acid) |
| CAS Number | 527-07-1 |
| Molecular Formula | C6H11NaO7 |
| Appearance | White to off-white crystalline powder or granule |
| Solubility | Freely soluble in water |
| Chelation | Strong for Ca/Fe, especially in alkaline conditions |
| Biodegradability | Recognized as readily biodegradable |
| Function | Chelating / sequestering agent; concrete set retarder & water reducer |
Frequently Asked Questions
What is sodium gluconate used for?
Sodium gluconate (CAS 527-07-1) is used as a concrete set retarder and water reducer, a chelant/builder in alkaline and bottle-washing cleaners, a sequestrant in metal surface treatment and electroplating, and a scale-control agent in textile and water-treatment applications.
Why does sodium gluconate work well in alkaline solutions?
Its polyhydroxy structure chelates calcium and iron more strongly as pH rises, so it sequesters metals effectively in strongly alkaline cleaners and baths where many chelants lose performance.
How does sodium gluconate retard concrete set?
As a small-dose admixture it slows cement hydration and reduces water demand, improving workability and ultimate strength. Dose must be controlled, because over-dosing can extend set time substantially; validate the dose in your mix.
What is the CAS number and formula of sodium gluconate?
Sodium gluconate is CAS 527-07-1 (PubChem CID 23672301), molecular formula C6H11NaO7. The CoA documents assay and grade.
Is sodium gluconate biodegradable?
Yes — sodium gluconate is recognized as readily biodegradable, which is one reason it is chosen as a chelant in some cleaning and water-treatment programs. Confirm any specific environmental classification against the SDS for your jurisdiction.
How is bulk sodium gluconate supplied and quoted?
RawSource supplies it in bags, super sacks and bulk with CoA and SDS per lot. Pricing is quote-based on grade, volume and freight; submit an RFQ with your target quantity and ship-to.
Disclaimer. Information on this page — including chemical properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot you purchase governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim, or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information.
