Copper Iodide

Copper Iodide Manufacturers in India

Copper iodide, also known as cuprous iodide is an inorganic chemical compound. Its chemical formula is CuI and its melting point is 606°C, It has a wide variety of applications which include cloud seeding, dietary supplement and organic synthesis. The colour of samples of copper iodide is usually even or tan, and reddish brown when found naturally in Marshite minerals. However, in pure form prepared by copper iodide manufacturer in India its colour tends to be white. Due to the aerobic oxidation of the copper iodide it may lose its colour as it reduces to Iodine.


Concentrated hydroiodic acid is used by the copper iodide manufacturer in India in the production of Copper Iodide, by heating Copper and Iodine in the acid. However, preparing copper iodide in a laboratory is a much simple process. Copper sulphate – a soluble salt of copper is mixed with an aqueous solution of potassium or Sodium iodide.


  • Compound name: Copper Iodide
  • Category: Iodides
  • Synonym: Cuprous Iodide
  • Molecular formula: CuI
  • Colour: Off white when in pure form, else tan or even
  • Solubility: Low solubility in H2O. Soluble in KI and NaI


Copper iodide is used as a dietary supplement as a component in animal food supplements and also for iodisation of table salt. It is also used to detect mercury as it changes it colour to brown when in contact with mercury. Copper iodide is used in cloud seeding and also for the stabilization of heat in nylon.

COPPER ( I )  IODIDE – Physical & Chemical Properties
[  Cuprous iodide,  Copper monoiodide  ]
CASR No. [7681 – 65 – 4]
EC-No. 231 – 674 – 6
HS-No. 2827 60 00
Merck-Index 10, 2655
Fieser 10, 107
SAX 6, 805
Mol.  Formula CuI
Mol. Weight 190.44
Bulk Density ~ 1400 kg / m3
Melting point 602 0C
Solubility in H2O,20 0C Almost insoluble
Atmospheric Susceptibility Light sensitive, aerial oxidation


Relevant Risk, Safety & Disposal Aspects
Risk R 22-36 Harmful in contact with eyes and skin, toxic by inhalation or if swallowed.
R 37 Wear suitable gloves.
R 38 In case of insufficient ventilation wear suitable respiratory equipment.
Safety S 26-36 In case contact with eyes/skin wash with plenty of water and seek medical assistance. Use protective clothes.
Disposal D 15 Dilute with water and neutralize with Sodium thiosulphate solution


Storage Greenish – grayish powder
Assay ( oxidimetric, dry basis  ) min. 99.0 %


Maximum Limits of Impurities
Loss on drying ( 110 0C, 2 hours ) 0.5 %
Sulphate ( SO4 ) 0.2 %
Iron ( Fe ) 0.005 %