High Purity Nitric Acid 68% (Korean Imported Grade) – Stainless Steel Passivation & Electronics (35kg Can/280kg Drum/IBC Supply)
Loc Thien Chemical is a Industrial Chemical Bulk Supplier of High Purity Nitric Acid 68% (HNO3, CAS 7697-37-2) imported from Korea. Density 1.41 g/cm³, essential for stainless steel passivation, pickling, and electroplating. Supplied in 35kg cans, 280kg drums, IBC tanks (no tankers). Hotline: +84 979 891 929.
High Purity Nitric Acid 68% (Korean Imported Technical Grade, Aqua Fortis) (CAS 7697-37-2, MW 63.01 g/mol) is a premium inorganic strong oxidizing acid imported directly from leading South Korean chemical manufacturers by Loc Thien Chemical as a Industrial Chemical Bulk Supplier. With a density of 1.410 g/cm³ at 20°C, this colorless to pale straw-colored fuming liquid is critical for stainless steel surface pickling, forming durable passive chromium oxide films (Cr₂O₃), semiconductor copper etching, and advanced electroplating. [Strict Logistics Compliance] Due to severe oxidizing hazards and imported cargo integrity, road tanker delivery is strictly prohibited for this product; shipments are supplied exclusively in original 35kg cans, 280kg drums, and 1,400kg IBC containers. Loc Thien Chemical ensures a swift 15-minute quotation turnaround.
Loc Thien Chemical provides genuine manufacturer Certificates of Analysis (COA) and import customs clearance declarations with every lot, maintaining extensive reserve inventories across 6 strategically located logistics hubs in Vietnam.
Nitric Acid 68% Korean Grade Specifications
Loc Thien's imported Korean nitric acid 68% conforms to KS M 1108 and ASTM technical standards for high-purity surface engineering.
| Parameter | Technical Specification | Test Method |
|---|---|---|
| Chemical Name | Nitric Acid 68% (Korean Origin) | IUPAC / CAS Nomenclature |
| Chemical Formula & MW | HNO₃ (63.01 g/mol) | Structural Chemistry |
| CAS Registry Number | 7697-37-2 | CAS Registry |
| UN Number & Hazard Class | UN 2031, Class 8 Corrosive + Sub-risk 5.1 Oxidizer | IMDG / IATA Regulations |
| HNO₃ Concentration | 68.0% ± 0.5% | Acid-Base Titration |
| Appearance | Clear, colorless to slightly yellowish fuming liquid | Visual Inspection |
| Density (at 20°C) | 1.405 – 1.415 g/cm³ | Hydrometer / ASTM D1298 |
| Nitrous Acid (HNO₂) | ≤ 0.01% | Potassium Permanganate Titration |
| Chloride (Cl) Impurities | ≤ 0.5 ppm (Ultra-trace controlled) | Ion Chromatography |
| Sulfate (SO₄) Impurities | ≤ 1.0 ppm | Turbidimetry |
| Iron (Fe) Content | ≤ 0.5 ppm (Electronics grade) | ICP-MS Instrument Analysis |
| Packaging & Dispatch Units | 35kg Cans, 280kg Drums, 1,400kg IBCs (No Tankers) | UV-Shielded Dedicated Poly Units |
Surface Passivation Mechanisms and Photodecomposition Safety
1. Stainless Steel Passivation Chemistry
Nitric acid oxidizes surface free iron, selectively dissolving non-noble contaminants while promoting the formation of an ultra-thin, highly resistant chromium oxide passive layer:
2. Photolytic Decomposition and Storage Protocol
When exposed to sunlight or heat, nitric acid undergoes photolytic degradation, yielding brown, toxic nitrogen dioxide gas (NO₂):
Keep containers tightly closed in dark, well-ventilated, temperature-controlled chemical warehouses away from organic solvents, oils, and combustible reducing agents.
⚡ Request Korean Nitric Acid 68% Spot Pricing (15-Minute Turnaround)
Contact Loc Thien Chemical for immediate dispatch of 35kg cans, 280kg drums, or IBC totes with full analytical certification.
- Direct Line: 0979 891 929
- Corporate Email: [email protected]
- Instant Messaging: WeChat:
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