Nitric Acid 70% ACS Grade - Low Particle

Why Nitric Acid 70% ACS Grade - Low Particle

Nitric Acid 70% ACS Grade - Low Particle provides the exact chemical purity and strong oxidizing capabilities required for rigorous analytical chemistry and strict industrial procedures. As a specialized liquid reagent (CAS 7697-37-2) conforming to American Chemical Society standards, this colorless to pale yellow liquid minimizes background interference in sensitive instrumentation due to its strict low-particle specification. Because it is completely soluble in water, it allows for immediate and uniform dilution in complex laboratory mixtures. Buyers select this specific 70% concentration when their protocols demand a powerful, high-purity mineral acid (HNO3) to completely dissolve organic matrices or solid metals without introducing trace contaminants that could compromise testing accuracy or substrate integrity.

Best Applications for This Grade

• Analytical Sample Digestion: Serves as a primary oxidizing agent in trace element analysis, breaking down complex environmental, geological, or industrial samples. The specialized low-particle profile prevents physical blockages in the fine nebulizer capillaries of ICP-MS and ICP-OES analytical equipment, ensuring uninterrupted testing runs.
• Precision Metal Passivation: Commonly applied in specialized metal finishing operations to forcefully remove free iron from stainless steel and titanium surfaces. The ACS purity ensures no rogue heavy metals are deposited back onto the alloy during the chemical bath, while the strong 70% concentration rapidly facilitates the formation of a passive, corrosion-resistant oxide layer.
• Environmental Regulatory Testing: Functions as a fundamental reagent for standard EPA testing methodologies and water quality assessments. Environmental and government laboratories rely on the strict ACS certification to guarantee compliance, eliminate false positives, and ensure strict reproducibility when preparing samples of municipal wastewater and soil.
• Laboratory Chemical Synthesis: Acts as a critical nitrating agent within controlled research facilities. It is heavily utilized in procedures where particulate matter would introduce nucleation sites, cause unwanted side reactions, or result in physical defects within the final synthesized chemical formulations.

When to Choose a Different Grade

• If your laboratory analytical methods, specific instrumental calibrations, or standard operating procedures dictate the requirement of a slightly lower concentration while still demanding strict American Chemical Society purity thresholds, choose Nitric Acid 65% ACS Grade.
• If your manufacturing facility requires a moderate acid strength for routine industrial pickling, heavy scale removal, or standard metal etching without the strict necessity of ACS certification and low-particle guarantees, consider Nitric Acid 40% or Nitric Acid 25%.
• If your industrial process demands a highly diluted formulation for mild pH adjustment, industrial water treatment buffering, or light-duty surface preparation, select Nitric Acid 20% or Nitric Acid 5%.