📋 CERTIFICATE OF ANALYSIS
Certificate of Analysis
Iodine (I₂) - High Purity Pharmaceutical Grade
This certificate confirms that the specified product meets the required analytical specifications for pharmaceutical and industrial applications.
Product Name
Iodine (I₂)
CAS Number
7553-56-2
Molecular Formula
I₂
Molecular Weight
253.81 g/mol
Batch Number
IOD-2412-001
Manufacturing Date
June 2025
Retest Date
June 2028
Grade
Pharmaceutical / USP / BP / Ph. Eur.
📊 Analytical Specification
| Test | Specification | Result | Status |
|---|---|---|---|
| Description | Dark purple or gray crystalline solid with metallic luster | Complies | ✓ Passed |
| Identification | Passes test according to USP/BP/Ph. Eur. | Complies | ✓ Passed |
| Assay (Iodometric) | 99.8% - 100.5% | 99.96% | ✓ Passed |
| Melting Point | 113.0°C - 115.0°C | 113.6°C | ✓ Passed |
| Chloride & Bromide (as Cl) | Max 0.005% | <0.005% | ✓ Passed |
| Non-Volatile Matter | Max 0.01% | <0.01% | ✓ Passed |
| Insoluble Matter | Passes test | Complies | ✓ Passed |
| Sulfate (SO₄) | Max 0.005% | <0.005% | ✓ Passed |
| Heavy Metals (as Pb) | Max 10 ppm | <5 ppm | ✓ Passed |
| Iron (Fe) | Max 5 ppm | <2 ppm | ✓ Passed |
🔬 Physical & Chemical Properties
| Property | Value |
|---|---|
| Appearance | Dark purple or gray crystalline solid with metallic luster |
| Odor | Pungent, irritating |
| Solubility in Water | 0.3 g/L at 20°C |
| Density | 4.93 g/cm³ |
| Melting Point | 113.6°C (236.5°F) |
| Boiling Point | 185.24°C (365.4°F) - sublimes |
| Vapor Pressure | 0.41 hPa at 25°C |
| pH (saturated solution) | ~5.4 |
| Refractive Index | n20/D 1.788 |
✅ Standards Compliance
| Pharmacopoeia | USP, BP, Ph. Eur. |
|---|---|
| ACS Specification | Meets ACS Reagent Specifications |
| ISO | ISO 9001:2015 Certified Facility |
🏆 Available Purity Grades
| Grade | Purity | Application |
|---|---|---|
| Pharmaceutical Grade | 99.9% - 100.5% | Drug manufacturing, antiseptics, medical imaging |
| Technical Grade | 99.5% | Industrial processes, animal feed, chemical synthesis |
| Crude Iodine | 95% - 98% | Intermediate product for further refinement |
📦 Packaging Information
| Container Type | HDPE Drums / Amber Glass Bottles |
|---|---|
| Net Weight | 25 kg / 50 kg / Custom |
| Storage Condition | Keep in dry, cool, well-ventilated area, away from light |
| Shelf Life | 36 months from manufacturing date (unopened) |
⚠️ Impurity Profile
| Impurity | Specification | Result |
|---|---|---|
| Chlorine & Bromine (as Cl) | Max 0.005% | <0.005% |
| Iodate (IO₃⁻) | Max 4 ppm | <4 ppm |
| Residual Solvents | Passes test | Complies |
| Non-Volatile Residue | Max 0.01% | 0.005% |
| Loss on Drying | Max 0.05% | 0.03% |