Sodium iodide Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 7681-82-5 |
| Product name | Sodium iodide |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeReagent GradeIndustrial GradeSpecialty Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for Sodium iodide
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Sodium iodide Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Sodium iodide
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Precursor for radioactive iodine-131 labeling, used in thyroid function diagnosis and therapy | Undergoes isotopic exchange with radioactive iodine-131 under acidic conditions to produce Na131I |
| Chemical Manufacturing | Iodide source in organic synthesis, employed in Finkelstein reactions (halogen exchange) | Heated with primary or secondary alkyl chlorides/bromides in polar aprotic solvents such as acetone to yield corresponding alkyl iodides |
| Analytical Chemistry | Standard reagent in iodometric titrations; used to prepare iodide reference solutions | Dissolved in high-purity water and standardized prior to use in redox titrations or potentiometric analysis |
| Nuclear Industry | Scintillator component in neutron detectors (used in conjunction with thallium-doped sodium iodide crystals, NaI(Tl)) | Processed into single crystals via high-temperature melt crystallization, then activated by thallium doping for gamma-ray detection |
| Veterinary Medicine | Iodine supplement in animal feed (for prevention of iodine deficiency) | Blended with other trace elements and added to feed at safe concentration limits (e.g., ≤5 mg I/kg complete feed) |
Manufacturing Quality Control of Sodium iodide
| Test Item | Common Test Methods | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the color and physical state of the sample under natural light. Sodium iodide should appear as a white or slightly yellow crystalline powder, free from visible foreign matter. |
| Identification | Chemical Reaction Method / Ion Chromatography | Chemical method: Add silver nitrate solution to form a yellow precipitate (AgI), which does not dissolve in ammonia, confirming the presence of iodide ions; Instrumental method: Ion chromatography specifically identifies Na⁺ and I⁻. |
| Assay | Argentometric Titration (Volhard or modified Mohr method) | Titration of iodide ions with standard silver nitrate solution, using an adsorption indicator or potentiometric detection to determine the endpoint, followed by calculation of NaI purity. |
| Chlorides | Turbidimetric Method | In a nitric acid medium, chlorides react with silver nitrate to form a white turbidity. The turbidity is compared visually with a standard chloride solution for limit testing. |
| Sulfates | Turbidimetric Method | In a hydrochloric acid medium, sulfates react with barium chloride to produce white turbidity, which is compared with a standard sulfate solution for limit testing. |
| Loss on Drying | Drying Method (at atmospheric or reduced pressure) | The sample is dried at a specified temperature (e.g., 105°C) to constant weight. The weight loss is used to calculate the content of moisture and volatile substances. |
| Residue on Ignition | Gravimetric Method | The sample is ignited at high temperature, and the remaining inorganic residue is weighed. The percentage of residue indicates the level of inorganic impurities. |
| Heavy Metals | Thioacetamide Method (Pharmacopoeia Method) | In weakly acidic conditions, heavy metals react with thioacetamide to form colored sulfide precipitates, which are compared visually with a standard lead solution for limit testing. |
| Arsenic | Gutzeit Method or Arsenic Spot Test | Zinc reacts with acid to generate nascent hydrogen, which reduces arsenic compounds to arsine gas. The arsine reacts with mercuric bromide paper to produce a colored stain for qualitative/quantitative analysis. |
| Solution Clarity | Visual Turbidity Comparison | The sample is dissolved in water and compared with a standard turbidity solution to assess clarity, used to control insoluble impurities. |
| pH Value | pH Meter Method | Prepare a solution of specified concentration of NaI in water and measure its pH using a calibrated pH meter. The pH is typically expected to be near neutral. |
| Microbial Limits | Microbial Limit Test (Plate Count Method / Membrane Filtration Method) | Test for total aerobic microbial count, molds and yeasts, and specified control organisms (e.g., Escherichia coli) according to pharmacopoeial requirements. |
Technical Specifications of Sodium iodide
| Test Item | Specification |
|---|---|
| Appearance | White or Colorless powder to crystal |
| Loss on Drying | ≤1.0 |
| K | ≤0.05 |
| Cl | ≤0.1 |
| Pb | ≤0.001 |
| SO4 | ≤0.05 |
| Ba | ≤0.02 |
| Purity | ≥99.0 |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of Sodium iodide
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of Sodium iodide
Industrial Sodium iodide Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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