A-A-59601E Type III

Product Overview

A-A-59601E Type III is a technical-grade hydrochloric acid solution meticulously formulated to support a broad range of industrial and laboratory processes. This reagent presents a balance of acidity, low impurity profile, and stable performance across standard operating temperatures, making it suitable for chemical synthesis, equipment cleaning, and analytical applications. The product is characterized by a high assay accuracy (95–100 wt%), a typical color level near APHA 5, and a specific gravity at 20°C of about 1.08, aligning with ACS-compatible specifications for reagent-grade solutions. Its formulation is designed to minimize residues after ignition and to maintain consistent reactivity in process streams, ensuring reliable process control in manufacturing and research environments.

Its stability and controlled impurity profile support precise neutralization, corrosion control, and reagent-based processes where trace metal limits are critical. The Type III designation signals adherence to stringent Technical Grade standards with clear documentation, including a comprehensive COA and traceability to established test methods such as ICP-OES/ICP-MS for metals and IC for anions. This makes A-A-59601E Type III a dependable choice for facilities requiring reproducible results, validated by standard analytical methodologies.

Key Properties

• Assay (wt%): 95–100 (typical 98)
• Chemical Formula: HCl
• Molecular Weight: 36.46 g/mol
• Boiling Point: Not specified for this aqueous solution (stable under standard handling)
• Specific Gravity (20°C): 1.05–1.10 (typical 1.08)
• Residue After Ignition: ≤ 0.10% (typical 0.05%)
• Chloride (Cl⁻) as Cl ppm: ≤ 200 (typical 50)
• Nitrate (NO₃⁻) ppm: ≤ 1000 (typical 100)
• Ammonium (NH₄⁺) ppm: ≤ 50 (typical 5)
• Sulfate (SO₄²⁻) ppm: ≤ 500 (typical 100)
• Phosphate (PO₄³⁻) ppm: ≤ 100 (typical 5)
• Arsenic (As) ppm: ≤ 0.01 (typical 0.003)

Common Applications

• Application Category: Acidity control and neutralization in chemical synthesis and processing streams, enabling precise pH adjustment and catalytic environments.
• Application Category: Metal surface preparation and pickling, where controlled acidity facilitates oxide removal with minimized substrate attack.
• Application Category: Analytical reagent for standardization and titration workflows, providing a consistent acid source for acid-base assays.
• Application Category: Cleaning and degreasing of stainless steel and other metals, leveraging its buffering and reactive characteristics to remove residues.
• Application Category: Electroplating and electrochemical processing, where controlled chloride activity supports consistent plating thickness and deposit quality.
• Application Category: Synthesis of inorganic chlorides and reagents in lab-scale and pilot processes requiring high-purity acid input.
• Application Category: Calibration and instrumentation preparation in analytical labs, including sample digestion and preparation steps needing strong acid conditions.
• Application Category: pH buffering and preparation of standard solutions in accordance with standard operating procedures in manufacturing laboratories.

Safety Precautions

Handle with appropriate chemical-resistant PPE, including chemical splash goggles, face shield where appropriate, acid-resistant gloves, and a lab coat or apron. Use in a well-ventilated area or fume hood, and store in a cool, dry place away from direct sunlight, incompatible materials, and oxidizers. Containers should be HDPE or glass with proper sealing to prevent moisture ingress and vapor release. Follow all labeling and SDS guidance, keep containers tightly closed when not in use, and ensure signage and ventilation are maintained in storage areas.

For spill or exposure incidents, follow emergency procedures per the SDS: immediately remove affected personnel to fresh air, flush exposed skin or eyes with plenty of water for at least 15 minutes, and seek medical attention if irritation persists. In the event of ingestion or inhalation, do not induce vomiting; transport the affected person to medical care. This product is UN 1789, Hydrochloric acid, Class 8, PG II, and should be handled with strict adherence to transportation and workplace safety guidelines. The product should be used in accordance with applicable ASTM, OSHA, and local regulatory requirements.

Benefits

✔ High-purity acid input – Consistent assay with strict impurity controls supports reproducible process results and reliable downstream reactions.
✔ Controlled impurity profile – Low levels of chlorides, nitrates, and heavy metals minimize interference in analytical workflows and plating processes.