Sodium iodide (chemical formula NaI) is an ionic compound formed from the chemical reaction of sodium metal and iodine. Under standard conditions, it is a white, water-soluble solid comprising a 1:1 mix of sodium cations (Na+) and iodide anions (I−) in a crystal lattice.
What is the structure of NaI?
NaI
Sodium iodide/Formula
Is sodium iodide ionic or covalent?
In ionic compounds, the atoms are present as ions; that is, as charged particles. For example, in NaI, the sodium is present as sodium ions and the iodine as iodide ions. The sodium ion, you will remember, has 12 protons in the nucleus, but only 11 extranuclear electrons.
What are chemical properties of sodium iodide?
Sodium Iodide Properties (Theoretical)
| Compound Formula | INa |
|---|---|
| Appearance | Colorless to White solid |
| Melting Point | 651° C (1,222° F) |
| Boiling Point | 1,304° C (2,379° F) |
| Density | 3.70 g/cm3 |
What is the use of sodium iodide?
What is sodium iodide? Sodium iodide is an iodide salt that is formed into an injectable medicine. Sodium iodide is used to treat or prevent iodine deficiency caused by poor nutrition or poor absorption by the body. Sodium iodide may also be used to treat a thyroid disorder.
Is sodium iodide soluble or insoluble?
Water
AcetoneEthanol
Sodium iodide/Soluble in
Is NaI a base or acid?
Back to Acids Resource Page
| NH3 weak base | AlCl3 acidic salt | HClO4 strong acid |
|---|---|---|
| SO2 acid anhydride | NaF basic salt | NaI neutral salt |
Is sodium iodide a catalyst?
The secret ingredient is actually sodium iodide, which acts as a catalyst (something that speeds up a chemical reaction, and in this case, it’s the decomposition of hydrogen peroxide). Sodium iodide is slightly toxic by ingestion.
Is sodium iodide conductive?
Sodium and sodium iodide can both conduct electricity when molten, but only sodium can conduct electricity when solid. Explain this difference in conductivity in terms of the structures of sodium and sodium iodide.
Does sodium iodide dissolve in water?
How to make sodium iodide?
Making sodium iodide from iodine. Shake 7 or 8 g iron filings and 50 ml water in an Erlenmeyer flask with 25 g iodine added in small portions. Warm the mixture somewhat until all of the iodine has combined, and the color of the solution has become deep yellow (ferrous iodide); then pour off the liquid from the excess of iron.
What is the chemical equation for sodium iodide?
The formula of the chemical compound Sodium iodide is NaI
Is sodium iodide an acid or a base?
Answer : sodium iodide ( NaI ) is neutral. What is an acid, base, neutral? ACID (wikipedia) An acid is a molecule or ion capable of donating a hydron (proton or hydrogen ion H+), or, alternatively, capable of forming a covalent bond with an electron pair (a Lewis acid).
What is the melting point of sodium iodide?
The melting point of sodium iodide is 651 °C, and boiling point is 1304 °C. Sodium iodide is a deliquescent solid compound. This means it can absorb water vapor from the atmosphere and turn into a solution. Solid compound gets a brown color when exposed to air or light, due to the formation of iodine fumes.
