383112

Sodium iodide

ACS reagent, ≥99.5%

• Linear Formula: NaI
• CAS Number: 7681-82-5
• Molecular Weight: 149.89
• EC Number: 231-679-3
• MDL number: MFCD00003532
• UNSPSC Code: 12352302
• PubChem Substance ID: 329755667
• NACRES: NA.21

Properties

• grade: ACS reagent
• vapor density: >1 (vs air)
• vapor pressure: ~1 hPa ( 767 °C)
• assay: ≥99.5%
• form: chunks or granules; crystalline powder; powder or crystals
• impurities: ≤0.002% N compounds; ≤0.01% insolubles
• pH: 6.0-9.0 (25 °C, 5%)
• mp: 661 °C (lit.)
• anion traces: Cl^- and Br^-: ≤0.01%; iodate (IO₃^-): ≤3 ppm; phosphate (PO₄^3-): ≤0.001%; sulfate (SO₄^2-): ≤0.005%
• cation traces: Ba: ≤0.002%; Ca: ≤0.002%; Fe: ≤5 ppm; K: ≤0.01%; Mg: ≤0.001%; heavy metals (as Pb): ≤5 ppm
• SMILES string: [Na+].[I-]
• InChI: 1S/HI.Na/h1H;/q;+1/p-1
• InChI key: FVAUCKIRQBBSSJ-UHFFFAOYSA-M

Description

General description

Sodium iodide is a water soluble iodide salt.

Application

Sodium iodide was used as a component in the preparation of Mayer′s hematoxylin stain solution.
It may be used in the following processes:

• Precursor in the polymerization of butyl acrylate.
• Chaotropic agent in the extraction of DNA.
• Deprotecting agent in the removal of N-tert-butyloxycarbonyl group in amino acids.
• Water-soluble fluorescence quenching reagent.

Other Notes

Go to Redi-Dri^™ Product Listing 746371

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H319
• pcodes: P264 - P280 - P305 + P351 + P338 - P337 + P313
• Hazard Classifications: Eye Irrit. 2
• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable