Nital Solution %4 | Nital Etchant | ASTM E407

The Nital Solution %4 represents our most concentrated standard nital formulation, delivering an aggressive and highly accelerated etch rate. This robust solution is specifically deployed when lower concentrations (1% to 3%) fail to produce adequate contrast, making it the premier choice for etching certain high-alloy steels, highly corrosion-resistant ferrous metals, and heavily heat-treated components.

Furthermore, the 4% concentration is exceptionally suited for extensive macro-etching applications, providing the intense chemical action required to expose deep structural anomalies, aggressive weld penetration profiles, and severe segregations across large surface areas.

Certified ASTM E407 Compliance

Maintaining absolute testing integrity is paramount for modern quality control facilities. Gündüz Kimya proudly manufactures the 4% Nital Solution in strict compliance with ASTM E407 (Standard Practice for Microetching Metals and Alloys).

By integrating our ASTM-certified 4% etchant into your laboratory infrastructure, you guarantee that even your most aggressive rapid-testing protocols yield data that is fully standard-compliant.

Nital Solution %4 Applications & Uses

Our 4% Nital Etchant is precisely balanced to deliver maximum chemical action for demanding tasks:

• High-Alloy Steels: Overcomes the natural corrosion resistance of certain alloyed steels to successfully reveal grain boundaries and complex phase structures.

• Intensive Macro-Etching: Delivers the aggressive penetration required for macroscopic evaluation of large ingots, billets, and heavy forgings to detect porosity, flow lines, and inclusions.

• Deep Weld Profiling: Provides extreme contrast for macroscopic weld analysis, rapidly defining complex multi-pass weld layers, the fusion zone, and the broader Heat Affected Zone (HAZ).

• Rapid Defect Identification: Accelerates the exposure of surface hardening defects, decarburization layers, and quenching cracks in heavy industrial components.

Nital Solution %4 Flexible Packaging to Suit Institutional Demands

To ensure maximum safety and operational convenience when handling a higher-concentration etchant, our Nital Solution 4% is securely packaged in chemically inert, industrial-grade containers:

• 250 ml Bottle: Designed for specialized high-alloy research, occasional macro-testing requirements, or targeted field analysis.

• 500 ml Bottle: The standard configuration for laboratories managing consistent volumes of heavy industrial testing.

• 1 Liter (1000 ml) Bottle: The highly economical choice for large-scale production facilities, foundries, and high-capacity quality control departments.

Why Choose Gündüz Kimya’s Nital Solution %4 ?

• Exceptional Purity: Compounded strictly utilizing analytical-grade reagents to prevent the formation of false artifacts during aggressive etching procedures.

• Ready-to-Use Safety: Professionally pre-mixed to exact 4% volumetric specifications. This completely eliminates the severe safety hazards and liability associated with laboratory personnel handling and diluting highly concentrated nitric acid.

• Unwavering Consistency: Advanced industrial batch-control guarantees identical chemical performance across every order, safeguarding the reliability of your quality assurance data.

• Optimized Shelf Life: Securely housed in airtight, opaque packaging engineered to thoroughly protect the potent solution from environmental degradation and UV light.

Technical Specifications

Feature	Specification
Product Name	Nital Solution 4% (Metallographic Etchant)
Standard Compliance	ASTM E407 (Standard Practice for Microetching)
Active Ingredients	Nitric Acid & Industrial Alcohol
Concentration	4% Nitric Acid
Appearance	Clear, colorless liquid
Available Volumes	250 ml, 500 ml, 1 Liter
Application Method	Swabbing or Immersion (typically 1 to 10 seconds – monitor closely)
Grade	Analytical / Laboratory Grade
Manufacturer	Gündüz Kimya

Safety & Handling Information:
Nital solution is a flammable and highly corrosive chemical mixture. Due to the elevated 4% acid concentration, extreme laboratory safety precautions are mandatory. Always use appropriate Personal Protective Equipment (PPE), including heavy-duty chemical-resistant gloves, full-coverage splash goggles, and a protective lab coat. Use strictly under a certified laboratory fume hood. Store securely in a dedicated corrosive/flammables safety cabinet, entirely isolated from direct sunlight, heat sources, and incompatible materials. Please consult the comprehensive Safety Data Sheet (SDS) provided by Gündüz Kimya prior to use.