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Sodium Iodide Chemical Structure

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What is Sodium Iodide

Sodium iodide is an inorganic sodium salt and an iodide salt. It is a white, water-soluble solid made up of a 1:1 mixture of sodium cations (Na+) and iodide anions (I) in a crystal lattice under normal circumstances. It is a chaotropic salt.

It is a strong deliquescent, which absorbs moisture and transforms into a solution. It is produced by the addition of sodium hydroxide or sodium carbonate to hydroiodic acid. Its primary applications in medicine are as nutritional supplements and additives.

Macsen Laboratories is the supplier of high-quality Sodium Iodide.
Name of Product Sodium Iodide
IUPAC Name sodium;iodide
Synonyms Sodium monoiodide; Soiodin; Jodid sodny; Iodure de sodium; iodeto de sódio; ioduro di sodio; yoduro de sodio
CAS No 7681-82-5
Molecular Formula NaI
Molar Mass 149.89 g/mol
Pubchem CID 5238
Pubchem SID 464868923

Chemical Properties

SR. No Criteria Limit/Specification
1 Appearance (Form) Dry Powder; Liquid; Pellets; Large Crystals
2 Appearance (Colour) Colourless to White
3 Odour Odourless
4 Taste Saline, somewhat Bitter taste
5 Density 3.67 g/cm³
6 Melting Point 651 °C
7 pH 8-9.5
8 Solubility(in water) 184 g/100ml at 25 °C


Side effects

Less frequent:

  • Joint Pain
  • Hives
  • Swelling of arms, face, legs, lips, tongue, and/or throat
  • Swelling of lymph glands

On Long-term usage:

  • Headache (severe)
  • Stomach irritation
  • Soreness of teeth and gums
  • Burning of mouth or throat
  • Increased watering of the mouth
  • Metallic taste
  • Skin sores


Q. Is Sodium Iodide ionic or covalent?

Sodium iodide is a water-soluble ionic compound with a crystal lattice.

Q. Where to buy Sodium Iodide?

Macsen Labs is a leading supplier of high-quality Sodium Iodide with ISO certification.

Q. Is Sodium iodide soluble in water?

Sodium Iodide is soluble in water, ethanol and acetone.

Q. Is sodium iodide the same as salt?

Salt is chemically sodium chloride. The major distinction between sodium chloride and sodium iodide is that the former consists of an ion of chloride bound to a sodium ion, whereas the latter consists of an ion of iodide.

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