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.

This monograph for Sodium Iodide provides, in addition to common physical constants, a general description including typical appearance, applications, change in state (approximate), and aqueous solubility.

A model for predicting the refractive index of sodium iodide (NaI) aqueous solution n NaI as a function of temperature T, NaI concentration c and wavelength λ was determined for moderate parameter variations. The equation accurately predicted the salt concentration required to match n NaI to the refractive index of Pyrex n P.

2025年1月3日 · Chlorine will displace bromine or iodine from an aqueous solution of the metal halide: Cl2 (aq) + 2KBr (aq) → 2KCl (aq) + Br2 (aq) chlorine + potassium bromide → potassium chloride + bromine Cl2 (aq) + 2KI (aq) → 2KCl (aq) + I2 (aq) chlorine + potassium iodide → potassium chloride + iodine Bromine with Iodides

Estimated values of absolute density (g/cm 3) of aqueous sodium iodide solutions {NaI + H 2 O) as function of electrolyte molality m and temperature T (at pressure p = 1 bar). Values in the table are consistent with the density of pure water calculated with the IAPWS-95 equation of state.

Sodium iodide is a metal iodide salt with a Na (+) counterion. It is an inorganic sodium salt and an iodide salt. Sodium iodide is a water -soluble ionic compound with a crystal lattice. Sodium iodide is a source of iodine and can be administered as a supplement for total parenteral nutrition but is more commonly used in veterinary medicine.

6 天之前 · The co-solvent of iodine (sodium iodide can form complex with iodine in an aqueous solution and can increase the iodine solubility), it can also be used as the raw materials of pharmaceuticals, photographic emulsion and single crystal.

2000年3月6日 · An aqueous solution of sodium iodide and zinc iodide is proposed as a fluid that matches the refractive index of a solid manufactured by rapid prototyping. This enabled optical measurements in…

2016年3月20日 · You're dealing with a double replacement reaction in which two soluble ionic compounds in aqueous solution react to form an insoluble solid that precipitates out of solution. In this case, lead (II) nitrate, Pb(NO3)2, and sodium iodide, NaI, both soluble in water, will exist as ions in aqueous solution. Pb(NO3)2 (aq] → Pb2+ (aq] +2NO− 3 (aq]

Like potassium iodide, sodium iodide in aqueous solution dissolves iodine to form a brown solution containing the I 3 − ion. It finds applications in photography and is also used in medicine as an expectorant and in the administration of radioactive iodine for studies of thyroid function and for treatment of diseases of the thyroid.