Sodium Iodide CAS 7681-82-5

Sodium Iodide is an inorganic compound with the chemical formula NaI. It appears as a white, crystalline solid or powder with a salty, bitter taste and no distinct odor. Highly soluble in water and slightly soluble in alcohol. Commonly used as a source of iodide in analytical chemistry, as a reagent in organic synthesis (e.g., Finkelstein reaction for alkyl iodide preparation), and as an additive in certain industrial processes including photographic chemicals and animal feed supplements. Also used in specialty halogen lighting and as a component in some disinfectant formulations. Stable under normal conditions but may discolor when exposed to light or air due to iodine oxidation.

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Model:
7681-82-5
Brand:
Futurechemical
Code:
7681-82-5

Product Description

Sodium iodide Basic information
Product Name:	Sodium iodide
CAS:	7681-82-5
MF:	NaI
MW:	149.89
EINECS:	231-679-3
Mol File:	7681-82-5.mol
Sodium iodide Chemical Properties
Melting point	661 °C (lit.)
Boiling point	1300 °C
density	3.66
bulk density	1500-2000kg/m3
vapor density	>1 (vs air)
vapor pressure	1 hPa (767 °C)
refractive index	1.7745
Fp	1300-1304°C
storage temp.	Store at +5°C to +30°C.
solubility	water: soluble(lit.)
form	beads
pka	0.067[at 20 ℃]
color	White
Specific Gravity	3.67
PH	6-9 (50g/l, H2O, 20℃)
Water Solubility	184 g/100 mL (25 ºC)
Specific Heat Capacity	Cp(crystal): 0.35 J/(g·K), at 25℃
Sensitive	Hygroscopic
Merck	148,631
Dielectric constant	7.28
Stability:	hygroscopic
Cosmetics Ingredients Functions	ANTIMICROBIAL
InChI	1S/HI.Na/h1H;/q;+1/p-1
InChIKey	FVAUCKIRQBBSSJ-UHFFFAOYSA-M
SMILES	[Na+].[I-]
LogP	-1.301 at 25℃
CAS DataBase Reference	7681-82-5(CAS DataBase Reference)
NIST Chemistry Reference	Sodium iodide(7681-82-5)
EPA Substance Registry System	Sodium iodide (7681-82-5)

Sodium iodide CAS 7681-82-5 Food nutritional fortifier Feed additive Film sensitizer Metallurgical industry flux Water treatment disinfectant

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.