TOC and TIC Analysis in Hydroxide Solutions Using High-Temperature Catalytic Combustion

User Benefits

- TOC and TIC of hydroxide solutions such as NaOH and KOH can be determined using a TOC-L analyzer - The internal acidification function minimizes the volume of acid required and reduces the time spent on sample preparation. - The High salt combustion tube kit prolongs the service life of the combustion catalyst.

Introduction

Hydroxide solutions, especially sodium hydroxide (NaOH) and potassium hydroxide (KOH), are commonly used in chemical, industrial, and environmental processes. These solutions neutralize acids to form water and salts, a process that is essential in various reactions. As strong bases, NaOH and KOH play a significant role in the production of a variety of goods, including soap, through the saponification process, in which they react with oils and fats. However, organic contaminants in these chemicals can lead to impurities, necessitating quality control of the reactants to ensure product integrity. Furthermore, hydroxides are potent CO₂ absorbers. They form carbonate and bicarbonate ions when they bind CO₂. Their solutions are used for various purposes, including sequestering fossil fuel emissions, which can be quantified by measuring total inorganic carbon (TIC).​ KOH is an essential electrolyte in the alkaline electrolysis of green hydrogen. Total organic carbon (TOC) limits must be maintained to ensure the smooth operation of this sensitive technology. Analytical quality control of hydroxide solutions is therefore necessary to ensure product quality and uphold process efficiency of alkaline electrolyzers.​

June 12, 2025 GMT