sodium pentahydroxyhexanoate FCC
What is sodium pentahydroxyhexanoate :
Sodium pentahydroxyhexanoate better known as Sodium gluconate is the sodium salt of gluconic acid and is produced by fermentation of glucose. It is a white granular, crystalline solid which is very soluble in water. It is non corrosive, non toxic, biodegradable and renewable. It is resistant to oxidation and reduction even at high temperatures. The main property of sodium gluconate is its excellent chelating power, especially in alkaline and concentrated alkaline solutions. It forms stable chelates with calcium, iron, copper, aluminium and other heavy metals. It is a superior chelating agent than EDTA, NTA and phosphonates.
Properties & specification of sodium pentahydroxyhexanoate:
- Systematic name: sodium (2R,3S,4R,5R’)-2,3,4,5,6-pentahydroxyhexanoate
- Other names: D-Gluconic Acid, Monosodium Salt; E576; Natriumgluconat; D-Gluconsaure; Natriumsalz; Natrium D-Gluconat;
- Purity: 99+%
- CAS No: 527–07–1
- EINECS: 208–407–7
- Molar mass: 218.14 g/mol
- Chemical formula: NaC6H11O7
- Appearance: white crystalline solid
- Heavy metals: 0.002% max
- Lead: 0.001% max
- Reducing substances: 0.5%
- Chloride: 0.07% max
- Sulphate: 0.05% max
- Arsenic: 3ppm max
- pH: 6.5–7.3
- Solubility: soluble in water 590 g/l @ 25C
- Melting point: soluble in water 590 g/l @ 25C
Sodium gluconate is soluble in cold water and hot water. It is only partially soluble in methanol and ethanol.
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Uses for sodium pentahydroxyhexanoate:
- It can be used as a water quality stabilizer because it has excellent inhibiting capacity to scale.
- Used as surface cleaning agent for metals
- Used as cleaning agent of glass bottles
- It also can be used as water reducing agent and retarder in the building industry. Sodium gluconate is also an efficient set retarder and a good plasticiser & water reducer for concrete, cement, mortar and gypsum.
Sodium pentahydroxyhexanoate in the Food Industry (Food grade only)
Sodium gluconate acts as a stabilizer, a sequestrant and a thickener when used as a food additive (E576). It is approved by CODEX for use in dairy products, processed fruit, vegetables, herbs and spices, cereals, processed meats, preserved fish etc etc.
Sodium pentahydroxyhexanoate in Pharmaceutical industry (Pharmaceutical grade only)
In the medical field,it can keep the balance of acid and alkali in the human body,and recover the normal operation of nerve. It can be used in the prevention and cure of syndrome for low sodium.
Sodium pentahydroxyhexanoate in cosmetics & Personal Care products
Sodium gluconate is used as a chelating agent to form complexes with metal ions which can influence the stability and appearance of cosmetic products. Gluconates are added to cleansers and shampoos to increase the lather by sequestering hard water ions. Gluconates are also used in oral and dental care products such as toothpaste where it is used to sequester calcium and helps to prevent gingivitis.
Sodium pentahydroxyhexanoate in the cleaning industry
Sodium gluconate is commonly found in many household and industrial cleaners. This is because on its multi functionality. It acts as a chelating agent, a sequestering agent, a builder and a redeposition agent. In alkaline cleaners like dishwasher detergents and degreasers it prevents hard water ions (magnesium and calcium) interfering with the alkalies and allows the cleaner to perform to its maximum ability.
Sodium gluconate helps as a soil remover for laundry detergents as it breaks the calcium bond holding the dirt to the fabric and further prevents the soil redepositing onto the fabric again.
Sodium gluconate helps to protect metals like stainless steel when strong caustic based cleaners are used. It helps to break down scale, milkstone and beerstone. As a result it finds application in many acid based cleaners especially those formulated for use in the food industry.
Industrial Applications of sodium pentahydroxyhexanoate
Sodium gluconate is used in electroplating and metal finishing because of its strong affinity for metal ions. Acting as a sequestrant it stabilises the solution preventing impurities from triggering undesirable reactions in the bath. The chelation properties of gluconate assist in the deterioration of the anode thus increasing plating bath efficiency. Gluconate can be used in copper, zinc and cadmium plating baths for brightening and increasing luster.
Sodium gluconate is used in agrochemicals and in particular fertilisers. It helps plants and crops to absorb necessary minerals from the soil.
It is used in the paper and pulp industries where it chelates out metallic ions which cause problems in the peroxide and hydrosulphite bleaching processes.
Sodium pentahydroxyhexanoate in Construction Industry
Sodium gluconate is used as a concrete admix. It offers several benefits including improved workability, retarding setting times, reducing water, improved freeze-thawing resistance, reduced bleeding, cracking and dry shrinkage. When added at a level of 0.3% sodium gluconate can retard setting time of cement to over 16 hours depending on ratio of water and cement, temperature etc. As it acts as a corrosion inhibitor it helps to protect iron bars used in concrete from corrosion.
sodium pentahydroxyhexanoate as a corrosion inhibitor
When sodium gluconate is present in water above 200ppm it protects steel and copper from corrosion. Water pipes and tanks composed of these metals are prone to corrosion and pitting caused by dissolved oxygen in the circulation water. This leads to cavitation and degradation of the equipment. The sodium gluconate reacts with the metal producing a protective film of the gluconate salt of the metal eliminating the possibility of the dissolved oxygen to come into direct contact with the metal.
In addition sodium gluconate is added to deicing compounds like salt and calcium chloride which are corrosive. This helps protect metal surfaces from being attacked by the salts but not deterring from the salt’s ability to dissolve ice and snow.
Other industrial applications of importance include bottle washing, photo chemicals, textile auxiliaries, plastics and polymers, inks, paints and dyes and Water treatment.
Health & safety
This product is not classified according to the EU regulations.
Safety phrase: S24/25– Avoid contact with skin and eyes.
For full details see MSDS for sodium pentahydroxyhexanoate
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