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Description
Sodium Glucoheptonate Dihydrate is the sodium salt of glucoheptonic acid in hydrated form, carrying two molecules of water of crystallisation. The compound belongs to the family of seven-carbon sugar acid derivatives, a structure rich in hydroxyl groups and bearing a carboxylate group. This combination makes the material highly effective at binding metal ions. In the laboratory its principal role is as a chelating agent or sequestrant, capable of keeping metal ions in solution and preventing precipitation even under strongly alkaline conditions.
The characteristics that make this compound a frequent choice are its excellent solubility in water together with its stability at high pH, an advantage over many other chelating agents that lose their binding power in alkaline media. Its polyol structure provides numerous coordination points, allowing it to form stable complexes with iron, copper, calcium, and aluminium ions. The dihydrate form yields a solid that is relatively easy to handle and weigh out, which supports consistent preparation of stock solutions and reproducible dosing across repeated experiments.
In Indonesian laboratories this material supports work in coordination chemistry, metal surface treatment, construction materials chemistry, and glycoscience studies that examine the relationship between carbohydrate structure and complex-forming ability. It is typically dissolved in aqueous systems for sequestration trials, alkaline formulation studies, and comparative chelation experiments, serving both academic research groups and applied industrial laboratories that need reliable metal ion control in demanding pH conditions.
Laboratory Applications
Coordination chemistry research — the polyol structure offers multiple coordination points, enabling formation of stable complexes with iron, copper, calcium, and aluminium ions for systematic binding studies.
Alkaline sequestration studies — retains chelating strength at high pH where many conventional chelators fail, making it suitable for experiments on metal ion solubility in strongly basic media.
Metal surface treatment work — keeps metal ions dissolved rather than precipitated, supporting laboratory-scale investigation of cleaning, conditioning, and surface preparation chemistries.
Construction materials chemistry — used in bench studies of cementitious and related alkaline systems, where its stability under high pH conditions allows meaningful control of metal ion behaviour.
Glycoscience investigations — as a seven-carbon sugar acid derivative, it serves research relating carbohydrate structure to complex-forming capability within broader chemical biology programmes.
Specifications
Brand: TCI
CAS number: 31138-65-5
Category: Chemistry > Chemical Biology > Glycoscience
Physical form: solid, dihydrate (two molecules of water of crystallisation)
Pack sizes: available in standard TCI catalogue pack sizes; please confirm the required size when ordering
Storage: keep in a closed container in a dry place, protected from moisture
Handling and Storage
Store the material in a tightly closed container in a cool, dry location, away from moisture, since the hydrated solid can take up additional water from humid air and affect weighing accuracy. Original supplier packaging or well-sealed glass or high-density polyethylene containers are suitable. Handle the powder in a well-ventilated area or fume hood to limit dust formation, and wear standard laboratory personal protective equipment including safety glasses, gloves, and a laboratory coat. Avoid contact with skin and eyes, prevent inhalation of dust, and wash hands thoroughly after handling. Label all prepared solutions clearly and consult the supplier safety data sheet before first use.
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