What Is the Balanced Formula for Nickel II Iodide?

2026-06-24

What Is Nickel Iodide?

Nickel iodide is an inorganic compound with the chemical formula NiI₂, primarily used in fields such as ceramics manufacturing.
At room temperature, nickel iodide is a black solid with a melting point of 797°C and a density of 5.834 g/cm³; it is highly soluble in water. According to the list of carcinogens published by the International Agency for Research on Cancer (IARC) of the World Health Organization, nickel compounds are classified as Group 1 carcinogens. When using this compound, avoid inhaling dust; if it comes into contact with the eyes, rinse immediately; wear protective equipment; seek medical attention immediately in the event of an accident; and follow relevant safety regulations.

Properties of Nickel Iodide

Nickel iodide is a black solid; the crystals obtained after sublimation are fine and lustrous. It is highly soluble in water. Nickel iodide is stable at room temperature and standard atmospheric pressure. Substances to avoid: oxides, moisture/dampness, alkali metals, alkaline earth metals, and alkalis; it decomposes when heated to high temperatures in air and readily absorbs moisture. It rapidly turns into a green solution in moist air. An aqueous solution of nickel iodide dissolves iodine, turning the solution brown. Dilute solutions are green, while concentrated solutions are a murky green or reddish-brown. It dissolves slowly in cold anhydrous ethanol but rapidly in cold ethanol solutions.

appearance	black powder
Formula	NiI₂
Melting point	797 °C (lit.)
Boiling point	sublime [LID94]
Density	5.83 g/mL at 25 °C (lit.)
solubility	H2O: slightly soluble (lit.)
Specific Gravity	5.834
Water Solubility	Soluble in water and alcohols.
Sensitive	Hygroscopic
storage temp.	Keep in dark place, inert atmosphere, room temperature

What is the use of nickel iodide?

Catalysts

In industry and chemical research, NiI₂ is often used as an effective catalyst for carbonylation reactions.

Ceramic Manufacturing

Nickel iodide is also frequently used directly in the manufacturing processes of specialty ceramics.

Energy Storage and Photocatalysis

Due to its unique crystal structure and excellent electronic properties, nickel iodide shows great potential for applications in batteries, supercapacitors, and photocatalysis.

Partner with Kerton Industry for Nickel Iodide

For reliable, high-performance nickel(II) iodide (CAS 13462-90-3) supply for catalysis, ceramic manufacturing, energy storage and photocatalysis sectors, Kerton Chemicals (Zhengzhou Kerton Chemical Co., Ltd.) stands out as a trusted global manufacturer and integrated chemical solution provider, operating via official website https://www.kerton-industry.com/. Below outlines its core competitive edges, differentiated service strengths, and clear collaboration procedures for all industrial and research clients.

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