Chemistry:Copper gluconate

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Copper gluconate
Copper gluconate.png
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Chemical and physical data
Molar mass453.8 g·mol−1
3D model (JSmol)
Melting point156 °C (313 °F)
Solubility in water30 mg/mL (20 °C)
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Copper gluconate is the copper salt of D-gluconic acid. It is an odorless light blue or blue-green crystal or powder which is easily soluble in water and insoluble in ethanol.[1][2]


  • Dietary supplement to treat copper deficiency.
  • Ingredient of Retsyn, which is an ingredient of Certs breath mints.
  • Fertilizer deficiency corrector to treat lacks of this nutrient.[3]

Side effects

The U.S. Institute of Medicine (IOM) sets Tolerable upper intake levels (ULs) for vitamins and minerals when evidence is sufficient. In the case of copper the adult UL is set at 10 mg/day.[4]

Copper gluconate is sold as a dietary supplement to provide copper. The typical dose is 2.0 mg copper per day. This is one-fifth what the IOM considers a safe upper limit. Long-term intake at amounts higher than the UL may cause liver damage.[4]


  1. "产品列表-葡萄糖酸铜". Liaoyang Tengyuan Food Additives Factory. Retrieved March 29, 2013.  (in Chinese)
  2. "Copper Gluconate". ChemicalLand21. Retrieved March 29, 2013. 
  3. "Metal-Gluconate Complexes". Chemical Reviews 64 (6): 633–643. 1964. doi:10.1021/cr60232a003. 
  4. 4.0 4.1 Food and Nutrition Board, Institute of Medicine (2001). "Chapter 9: Copper". DRI: dietary reference intakes for vitamin A, vitamin K, arsenic, boron, chromium, copper, iodine, iron, manganese, molybdenum, nickel, silicon, vanadium, and zinc : a report of the Panel on Micronutrients ... and the Standing Committee on the Scientific Evaluation of Dietary Reference Intakes. Washington, D.C.: National Academy Press. pp. 224–257. ISBN 978-0-309-07290-8. 

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