Description
Specifications Table
Product Name – Nitric Acid 67-70% for Trace Analysis Quantity/Pack Size – 1 LT Form – Liquid Grade – Trace Analysis Application – Trace metal digestion, sample preparation, ICP-MS/AAS analysis
Product Overview
This 67-70% nitric acid is specifically formulated for trace analysis applications, offering exceptional purity with ultra-low metal impurities (typically <0.0001% for most elements). The reagent-grade concentration ensures complete sample digestion while minimizing background interference in spectroscopic techniques. Its consistent 67-70% concentration provides optimal oxidation power for organic matrix breakdown without introducing contaminants. The acid undergoes rigorous quality control to maintain lot-to-lot consistency, making it ideal for sensitive analytical procedures. Packaged in high-density polyethylene bottles with tamper-evident seals to prevent contamination during storage. The formulation meets or exceeds ACS specifications for trace metal analysis, with documented impurity profiles available upon request. Suitable for use in cleanroom environments when proper handling protocols are followed.
FAQs
1. What is the typical shelf life of this trace-grade nitric acid?
When stored unopened in its original container at room temperature, this nitric acid maintains its specified purity for at least 24 months from the date of manufacture. The shelf life may extend further if stored under ideal conditions away from direct sunlight and moisture.
2. How does this compare to regular laboratory-grade nitric acid?
This trace analysis grade contains significantly lower metal impurities (often 10-100x less) compared to standard laboratory-grade nitric acid. The manufacturing process includes additional purification steps to remove trace elements that could interfere with sensitive analytical techniques.
3. What type of container is recommended for long-term storage?
For long-term storage, transfer the acid to fluorinated polyethylene (FEP) or perfluoroalkoxy (PFA) bottles if not using the original container. These materials offer superior chemical resistance and minimize leaching of contaminants compared to standard glass or HDPE containers.
4. Is this nitric acid suitable for microwave digestion systems?
Yes, this grade is compatible with most microwave digestion systems. Its low impurity profile makes it particularly suitable for microwave-assisted digestion procedures where contamination control is critical for accurate trace element analysis.
5. What safety precautions should be taken when handling this concentration?
Always handle in a properly ventilated fume hood wearing appropriate PPE including acid-resistant gloves, safety goggles, and lab coat. The 67-70% concentration is highly corrosive and can cause severe burns. Neutralize spills immediately with sodium bicarbonate or soda ash before cleanup.
