What is Sodium Glucoheptonate CAS 31138-65-5?

CAS 31138-65-5 is sodium glucoheptonate, also called sodium gluceptate or sodium glucoheptanoate. It is a seven-carbon sugar acid salt that functions as a strong, biodegradable chelating and sequestering agent.

What are the main industrial uses of sodium glucoheptonate?

It is used in alkaline cleaners, bottle washing, food-processing equipment cleaning, metal degreasing, textile bleaching, and water treatment. It also functions as a construction set retarder and as a chelating additive in cosmetic, agricultural, and specialty formulations.

Why is it suitable for high-alkaline cleaning systems?

Sodium glucoheptonate remains stable and retains chelating power in strong alkaline conditions, especially in the pH 9-14 range. This makes it useful for caustic cleaning, bottle washing, kier boiling, and metal surface treatment where scale and metal ions must be controlled.

How does sodium glucoheptonate compare with EDTA?

Both are chelating agents, but sodium glucoheptonate is readily biodegradable and is often used as a lower-persistence alternative to EDTA. It is particularly effective in alkaline systems and can complex calcium, magnesium, iron, zinc, aluminum, and other di- or trivalent metal ions.

Is Sodium Glucoheptonate available in powder and liquid forms?

Yes. Industrial supply commonly includes a white to off-white crystalline powder and a liquid grade, with the powder being very soluble in water. The product page lists crystalline powder and 50% liquid options to match dosing, handling, and formulation requirements.

Sodium Glucoheptonate CAS 31138-65-5

Sodium Glucoheptonate CAS 31138-65-5 is a highly stable organic sequestering agent that provides exceptional metal ion control in high-alkalinity environments. Within industrial water treatment and metal surface processing, this sodium glucoheptanoate functions as a primary chelating agent capable of forming non-ionic, water-soluble complexes with polyvalent metal ions like calcium, magnesium, and iron. This sodium gluceptate is particularly valued for its caustic stability in alkaline bottle washing and textile mercerizing processes, while glucoheptonic acid sodium salt prevents iron staining and mineral scale buildup in high-pH industrial cleaning formulations. Sodium Gluconate is a related chelating salt for formulation comparison. As a biodegradable alternative to EDTA, this sodium alpha-glucoheptonate facilitates efficient aluminum etching and cement set retardation without environmental bioaccumulation. We provide bulk supply with competitive factory pricing to support large-scale industrial operations, ensuring all shipments are verified via MSDS, TDS, COA and offer customized specifications for liquid or crystalline powder forms.

CAS: 31138-65-5
Synonyms: Sodium glucoheptanoate, D-glycero-D-gulo-Heptonic acid sodium salt, Sodium gluceptate, Glucoheptonic acid sodium salt, Sodium alpha-glucoheptonate
Einecs: 250-480-2
Molecular Formula: C7H13NaO8
Grade: Technical Grade / Industrial Grade
Package: 25kg/bag, 250kg/drum, or customized bulk supply

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Product Description

For construction formulations using a lignosulfonate-based dispersant or water reducer, Sodium Lignosulfonate is a separate formulation material.

1 Technical Data (Physicochemical Properties)

2 Applications

3 Storage & Safety

4 Quality Assurance

Technical Data (Physicochemical Properties)

Property Category	Parameter	Specification (Crystalline Powder)	Specification (50% Liquid)
Physical State	Appearance	White to off-white powder	Dark brown liquid
	Odor	Odorless	Slight caramel/ammonia
Core Assay	Active Content	>= 98.0%	>= 50.0%
	pH (1% solution)	7.0 – 9.0	8.0 – 11.0
Performance	Chelating Power (Ca)	>= 500 mg CaCO3/g	>= 250 mg CaCO3/g
	Specific Gravity	N/A	1.25 – 1.30 g/cm3
Trace Limits	Chloride (Cl)	<= 0.05%	<= 0.1%
	Sulfate (SO4)	<= 0.1%	<= 0.2%
Solubility	Water Solubility	Very soluble (>550 g/L)	Completely miscible
	Stability	Stable in 10% NaOH	Stable in 10% NaOH

Applications

Industrial Cleaning: Used in heavy-duty alkaline cleaners for bottle washing, food processing equipment, and metal degreasing to prevent scale and complex metal contaminants.
Textile Industry: Applied as a sequestering agent during bleaching and mercerizing to improve dye uptake and prevent metal-induced fiber degradation.
Construction Chemicals: Acts as a high-efficiency set retarder in concrete and oil-well cement formulations to extend workability and improve compressive strength.
Water Treatment: Serves as a green chelating agent for scale and corrosion inhibition in boilers, cooling towers, and heat exchangers.

Storage & Safety

Storage: Store in a cool, dry, well-ventilated area away from direct sunlight and incompatible materials like strong oxidizing agents. Keep containers tightly closed when not in use.
Safety Operations (PPE): Wear standard industrial safety glasses with side shields and chemical-resistant gloves (nitrile or PVC). Use a dust mask if handling the powder form in non-ventilated areas.
Handling: Prevent contact with eyes and prolonged skin contact. Wash hands thoroughly after handling. The liquid form can be slippery; manage spills promptly with absorbent materials.

Quality Assurance

Our manufacturing process for Sodium Glucoheptonate utilizes high-purity sugar-based precursors and controlled oxidation to ensure a consistent isomer profile. Each batch undergoes rigorous testing via Nonaqueous Titration for assay verification and ICP analysis for trace metal monitoring. We strictly adhere to ISO 9001 standards to ensure that our product meets the sequestration capacity requirements of global industrial cleaning and construction benchmarks.

FAQ - Technical & Supply Chain

Q:
What is Sodium Glucoheptonate CAS 31138-65-5?

A: CAS 31138-65-5 is sodium glucoheptonate, also called sodium gluceptate or sodium glucoheptanoate. It is a seven-carbon sugar acid salt that functions as a strong, biodegradable chelating and sequestering agent.
Q:
What are the main industrial uses of sodium glucoheptonate?

A: It is used in alkaline cleaners, bottle washing, food-processing equipment cleaning, metal degreasing, textile bleaching, and water treatment. It also functions as a construction set retarder and as a chelating additive in cosmetic, agricultural, and specialty formulations.
Q:
Why is it suitable for high-alkaline cleaning systems?

A: Sodium glucoheptonate remains stable and retains chelating power in strong alkaline conditions, especially in the pH 9-14 range. This makes it useful for caustic cleaning, bottle washing, kier boiling, and metal surface treatment where scale and metal ions must be controlled.
Q:
How does sodium glucoheptonate compare with EDTA?

A: Both are chelating agents, but sodium glucoheptonate is readily biodegradable and is often used as a lower-persistence alternative to EDTA. It is particularly effective in alkaline systems and can complex calcium, magnesium, iron, zinc, aluminum, and other di- or trivalent metal ions.
Q:
Is Sodium Glucoheptonate available in powder and liquid forms?

A: Yes. Industrial supply commonly includes a white to off-white crystalline powder and a liquid grade, with the powder being very soluble in water. The product page lists crystalline powder and 50% liquid options to match dosing, handling, and formulation requirements.

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