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409286

Sigma-Aldrich

Sodium iodide

99.999% trace metals basis

Synonym(s):

Sodium monoiodide

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About This Item

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:
24865632
NACRES:
NA.23
grade:
for analytical purposes
form:
crystalline
Pricing and availability is not currently available.

grade

for analytical purposes

vapor density

>1 (vs air)

Assay

99.999% trace metals basis

form

crystalline

impurities

≤15.0 ppm Trace Metal Analysis

mp

661 °C (lit.)

SMILES string

[Na+].[I-]

InChI

1S/HI.Na/h1H;/q;+1/p-1

InChI key

FVAUCKIRQBBSSJ-UHFFFAOYSA-M

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General description

Sodium iodide (NaI) is a water soluble ionic compound that consists of an equivalent addition of sodium as a cation (Na+) and iodide as an anion (I-) in crystal space. It is industrially prepared by reacting acidic iodides with sodium hydroxide (NaOH) to form NaI salts. It is a less toxic compound than iodine and can be stored and handled easily.[1][2]

Application

NaI can be used as a precursor in the preparation of controlling agents for emulsion polymerization.[2] It can also be used as an inorganic salt in the development of liquid electrolytes for the fabrication of dye sensitized solar cells (DSSCs).[3]

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H319

Hazard Classifications

Eye Irrit. 2

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000233961
0000239134
MKCC4036
MKBZ6571V
MKBV5874V

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Iodine and iodine compounds
Lyday PA and Kaiho T
Ullmann's Encyclopedia of Industrial Chemistry, 1-13 (2000)
Gel polymer electrolyte based on poly (acrylonitrile-co-styrene) and a novel organic iodide salt for quasi-solid state dye-sensitized solar cell
Wu J, et al.
Electrochimica Acta, 51(20), 4243-4249 (2006)
Use of sodium iodide as the precursor to the control agent in ab initio emulsion polymerization
Tonnar J and Lacroix-Desmazes P
Angewandte Chemie (International Edition in English), 47(7), 1294-1297 (2008)
Shuzhong Zhang et al.
Frontiers in immunology, 11, 1871-1871 (2020-09-26)
Macrophage dysfunction is fundamentally related to altered immunity in cystic fibrosis (CF). How genetic deficits in the cystic fibrosis transmembrane conductance regulator (CFTR) lead to these defects remains unknown. Rapid advances in genomic editing such as the clustered regularly interspaced
Anke de Vries et al.
Investigative radiology, 50(4), 297-304 (2015-01-01)
The objective of this study was to investigate the feasibility and the accuracy of spectral computed tomography (spectral CT) to determine the tissue concentrations and localization of high-attenuation, iodine-based contrast agents in mice. Iodine tissue concentrations determined with spectral CT
View All Related Papers

Questions

1–2 of 2 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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