Nital Solution %5 | Nital Etchant | ASTM E407
The Nital Solution %5 is the most potent concentration in our standard nital range, designed specifically for applications where speed and aggressive chemical action are paramount. This formulation is ideally suited for etching highly alloyed steels and cast irons that exhibit high resistance to lower concentration reagents.
Due to its high nitric acid content, the 5% concentration provides nearly instantaneous microstructural reveals, making it indispensable for high-throughput foundries and heavy manufacturing facilities where laboratory turnaround time directly impacts production efficiency.
Certified ASTM E407 Compliance
In a professional testing environment, adherence to global standards is critical for data validity. Gündüz Kimya produces the 5% Nital Solution in strict accordance with ASTM E407 (Standard Practice for Microetching Metals and Alloys).
By utilizing our ASTM-certified 5% etchant, your institution ensures that even the most aggressive rapid-etching protocols remain within standardized parameters.
Nital Solution %5 Applications & Uses
Our 5% Nital Etchant is the industry benchmark for heavy-duty metallurgical tasks:
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Resistant Alloy Steels: Effectively breaks down the surface resistance of high-carbon and specialized alloy steels to reveal grain boundaries and complex phases.
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Deep Macro-Etching: The primary choice for deep-etching large-scale forgings and castings to identify flow lines, primary dendritic structures, and internal segregation.
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Weld Penetration Analysis: Provides the highest level of contrast for macroscopic weld evaluation, allowing for rapid and precise measurement of weld penetration and the Heat Affected Zone (HAZ).
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High-Volume QA/QC: Minimizes immersion times to seconds, allowing for rapid processing of samples in continuous production environments.
Nital Solution %5 Flexible Packaging to Suit Institutional Demands
To ensure maximum safety and chemical stability for this high-activity solution, our Nital Solution 5% is supplied in chemically resistant, industrial-grade packaging:
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250 ml Bottle: Suitable for specialized research projects or low-frequency macro-testing requirements.
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500 ml Bottle: The standard laboratory choice for consistent daily metallurgical testing and industrial analysis.
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1 Liter (1000 ml) Bottle: The most cost-effective and efficient solution for large-scale industrial labs and high-capacity manufacturing facilities.
Why Choose Gündüz Kimya’s Nital Solution %5 ?
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Exceptional Purity: Compounded strictly with analytical-grade $HNO_3$ and alcohol to prevent artifacts and ensure a clean etch surface even at high speeds.
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Ready-to-Use Safety: Professionally pre-mixed to exact 5% volumetric specifications. This eliminates the high-risk task of handling and diluting concentrated nitric acid in the laboratory.
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Batch Consistency: Advanced production controls ensure that every bottle performs exactly like the last, maintaining the integrity of your long-term metallurgical data.
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Specialized Storage: Housed in airtight, opaque containers designed to protect the high-potency solution from UV-induced degradation and oxidation.
Technical Specifications
| Feature | Specification |
| Product Name | Nital Solution 5% (Metallographic Etchant) |
| Standard Compliance | ASTM E407 (Standard Practice for Microetching) |
| Active Ingredients | Nitric Acid ($HNO_3$) & Industrial Alcohol |
| Concentration | 5% Nitric Acid |
| Appearance | Clear, colorless liquid |
| Available Volumes | 250 ml, 500 ml, 1 Liter |
| Application Method | Swabbing or Immersion (typically 1 to 5 seconds) |
| Grade | Analytical / Laboratory Grade |
| Manufacturer | Gündüz Kimya |
Safety & Handling Information:
Nital solution 5% is a highly flammable and severely corrosive chemical mixture. Due to the high acid concentration, extreme laboratory caution is mandatory. Always wear appropriate Personal Protective Equipment (PPE), including heavy-duty chemical-resistant gloves, full-face splash protection, and a laboratory coat. Use strictly under a certified laboratory fume hood. Store in a dedicated corrosive/flammables safety cabinet, isolated from heat, direct sunlight, and incompatible organic materials. Please consult the comprehensive Safety Data Sheet (SDS) provided by Gündüz Kimya before use.






