GTE Nitric Acid – 69.8–70% ACS Reagent Grade

Professional Nitric Acid for Gold Refining, Aqua Regia Preparation & Precious Metal Recovery

GTE Nitric Acid (HNO₃) 69.8–70% ACS Reagent Grade is a high-purity laboratory chemical widely used for gold refining, aqua regia preparation, precious metal recovery, and industrial laboratory applications.

Nitric acid plays a critical role in gold refining chemistry. When combined with hydrochloric acid, it forms aqua regia, the classic solution used by refiners to dissolve gold and other precious metals during the refining and recovery process.

Reliable reagent-grade purity and consistent concentration make this nitric acid suitable for refiners, jewelers, laboratories, and precious metal recovery professionals who require dependable chemical performance.

GTE Nitric Acid
Concentration: 69.8–70% ACS Reagent Grade
Brand: GTE Gold & Silver Testing Equipment
Advantage: Produced at the upper end of the ACS purity range
Best for: Refiners who want maximum strength and performance for aqua regia and gold recovery

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Comprehensive Benefits and Uses of Nitric Acid 70%

Nitric acid is one of the most important gold refining chemicals used by refiners worldwide. It is commonly used to remove base metals, prepare aqua regia solutions, and assist in dissolving precious metals during the refining process.

When nitric acid is mixed with hydrochloric acid in the proper ratio, the resulting solution—aqua regia—is capable of dissolving gold and other precious metals that resist most other acids.

High-purity nitric acid helps ensure consistent reactions during gold refining and precious metal recovery, making it an essential chemical for refining operations.

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⚠ Important Compliance & Safety Notice

Nitric Acid (HNO₃) is a regulated oxidizing and corrosive chemical and must only be handled by individuals trained in chemical safety procedures.

Age Requirement

Must be 21 years of age or older to purchase.

Intended Use

For gold refining, aqua regia preparation, precious metal recovery, laboratory use, research, and industrial chemical applications only.
Not intended for household use.

Legal Responsibility

By purchasing this product, the buyer agrees to comply with all applicable local, state, and federal regulations governing the purchase, storage, and handling of nitric acid. The buyer assumes full responsibility for safe handling and lawful use.

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🚛 Shipping & Return Policy

Due to hazardous material shipping regulations:

• Ships UPS Ground only
• Available to the Lower 48 United States
• Cannot ship to PO Boxes, APO/FPO addresses, Alaska, Hawaii, or international destinations
• No returns accepted once product has shipped

Nitric acid is packaged in DOT-compliant, acid-resistant safety bottles designed for safe storage and shipment under Limited Quantity ground transport rules.

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⚗ Product Details

Chemical Name: Nitric Acid
Chemical Formula: HNO₃
CAS Number: 7697-37-2

Grade: ACS Reagent / Laboratory Grade
Purity: 69.8–70% v/v
Volume: 32 oz (1000 mL)

Common Synonyms:
Aqua Fortis
Hydrogen Nitrate
Salpetersäure

This reagent-grade nitric acid is commonly used in precious metal refining, gold recovery processes, laboratory chemistry, and industrial chemical applications.

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⚙ Common Applications

This nitric acid is commonly used for:

• Gold refining and precious metal recovery
• Preparing aqua regia for dissolving gold
• Refining scrap gold jewelry and electronic scrap
• Jewelry testing and metal analysis
• Laboratory and research chemistry
• Industrial chemical processes

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🧪 Safety & Handling Guidelines

Personal Protective Equipment (PPE)

Always wear appropriate protective equipment when handling nitric acid:

• Acid-resistant gloves
• Chemical splash goggles
• Protective clothing
• Face shield when appropriate

Use only in a well-ventilated area or under a chemical fume hood.

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Storage

Store below 75°F (24°C) in the original sealed container.

Keep away from:

• organic materials
• bases or alkaline substances
• metals
• incompatible or flammable chemicals

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Dilution Rule

When diluting nitric acid:

Always add acid to water — never water to acid.

This helps prevent violent reactions or dangerous splashing.

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🆘 First Aid Measures

Eye Contact: Flush immediately with water for at least 15 minutes and seek medical attention.

Skin Contact: Remove contaminated clothing and rinse skin with large amounts of water for 15 minutes.

Inhalation: Move the affected person to fresh air and seek medical assistance if symptoms persist.

Ingestion: Do not induce vomiting. Contact Poison Control or seek immediate medical attention.

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📞 Emergency Contact

CHEMTREC (24-Hour Emergency Response)
1-800-424-9300

Safety Data Sheet (SDS) available upon request.

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🏭 Manufactured for

GTE Gold & Silver Testing Equipment
www.goldandsilvertesting.com

Made in the USA

New to gold refining?

Visit our Gold Refining Learning Center for beginner-friendly guides that explain the basics of gold recovery, refining concepts, common materials found in electronics, and how precious metals are identified and evaluated.

These guides are designed to help you better understand refining processes and the tools commonly used in precious metal work.

Explore the Learning Center HERE

High Purity and Quality Assurance

GTE Nitric Acid 70% is a concentrated acid solution formulated to meet ACS reagent grade standards. This high level of purity ensures reliable and consistent results during usage, particularly important in sensitive chemical applications such as gold refining. The 69.8-70% nitric acid concentration guarantees optimal oxidation potential and minimal impurities, elevating performance for precise laboratory or industrial processes. Choosing a high-purity nitric acid helps maintain chemical integrity and efficiency during refining operations and prevents contamination that could compromise metal recovery yield.

Optimized for Gold Refining and Metal Recovery

This Nitric Acid 70% concentration is specifically suited for gold refining and recovery applications, where its oxidizing properties efficiently dissolve metal impurities. The acid assists in separating gold from other metals, making it essential for collectors, jewelers, and small-scale refinery operations. Its concentrated nature helps accelerate the refining process, reducing time and chemical consumption, while maintaining environmental safety when handled properly. This product empowers users with a dependable reagent suited for expert-level gold purification tasks.

Safe Handling and Storage Convenience

GTE Nitric Acid 70% is packaged in a 32oz container that balances ease of handling and storage safety. The container is designed to resist corrosion, ensuring the acid remains stable and uncontaminated during storage. Proper labeling and secure sealing reduce the risk of accidental spills or exposure, making it suitable for laboratory and workshop environments. Following recommended safety guidelines, including wearing protective gear and storing in a cool, ventilated area, ensures that users benefit fully while maintaining a safe workspace.