Specifications Table

Product Name – HYDROCHLORIC ACID 32% Extra Pure Quantity/Pack Size – 500 ml, 2500 ml Form – Liquid Grade – Extra Pure Application – Titration, pH adjustment, sample digestion

Product Overview

Hydrochloric acid (HCl) at 32% concentration is a highly versatile and essential reagent in laboratory settings, offering a balance of strength and purity for demanding applications. This extra pure grade ensures minimal metallic and non-volatile impurities, making it suitable for sensitive analytical procedures where consistency is critical. The acid is a colorless to slightly yellow liquid with a pungent odor, characterized by its strong corrosive properties and ability to dissolve a wide range of inorganic compounds. Its high reactivity makes it indispensable for tasks such as acid-base titrations, pH regulation, and the digestion of organic or inorganic samples prior to analysis. The 32% concentration provides an optimal balance between handling ease and effectiveness, reducing the need for excessive dilution while maintaining safety in controlled environments. Proper storage in tightly sealed, corrosion-resistant containers is essential to prevent degradation or accidental exposure. Compatible with glass and certain plastics like PTFE or HDPE, this hydrochloric acid is a staple in research labs, quality control facilities, and educational institutions where precision and reliability are paramount. Always handle with appropriate personal protective equipment (PPE), including gloves, goggles, and lab coats, to mitigate risks associated with its corrosive nature.

FAQs

1. What is the shelf life of 32% extra pure hydrochloric acid?

The shelf life is typically 2–3 years when stored in a cool, dry place in its original, tightly sealed container. Exposure to air or moisture can accelerate degradation, so ensure the cap is secured after each use. Over time, the concentration may slightly decrease due to evaporation, but the acid remains usable for most applications if stored properly.

2. Can this hydrochloric acid be used for metal cleaning or etching?

Yes, 32% hydrochloric acid is effective for removing oxides, scales, or corrosion from metals like steel or copper. However, it may not be suitable for delicate metals such as aluminum or zinc, which react vigorously. Always test on a small area first and use in a well-ventilated space with proper safety measures to avoid fume inhalation or skin contact.

3. What materials are compatible with this hydrochloric acid for storage?

Glass bottles or containers made from high-density polyethylene (HDPE) or polytetrafluoroethylene (PTFE) are ideal for storage. Avoid using metal containers, as the acid will corrode them. Ensure the container is labeled clearly and stored away from incompatible substances like bases, oxidizers, or organic materials to prevent hazardous reactions.

4. How should I dispose of unused or expired hydrochloric acid?

Dispose of hydrochloric acid according to local environmental regulations, typically through a licensed chemical waste disposal service. Neutralize small quantities with a weak base like sodium bicarbonate before disposal, but never pour it down drains or into regular trash. Check with your institution or municipal guidelines for specific procedures to ensure compliance and safety.

5. Is this grade of hydrochloric acid suitable for food or pharmaceutical testing?

While extra pure grade hydrochloric acid is high in purity, it is not certified for food or pharmaceutical use unless explicitly labeled as such. For applications requiring compliance with food safety (e.g., FSSAI) or pharmaceutical standards (e.g., IP/BP/USP), opt for a reagent grade specifically designed for those industries to avoid contamination risks.