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From guided-wave.com
The use of polymeric polyols is commonplace in the manufacturing of polyurethanes and other specialty polymers. The hyroxyl number (OH number) is a measure of the concentration of the hydroxyl groups on the polyol. This is an important parameter to monitor and control during polyol production. The laboratory method that is commonplace for hydroxyl number determination is both time consuming and involves the use of hazardous materials. This note will discuss the use of Guided Wave hardware and software tools for the measurement of hydroxyl number in polyols using fiber optic-based, Near-Infrared (NIR) spectroscopy. NIR can be applied in real time directly in process monitoring or as a laboratory procedure. In either case NIR is a time and money saving alternative to traditional methods. NIR also offers the benefit of increased safety over traditional methods. Products & Services
Deionizers remove the ionized minerals and salts (both organic and inorganic) from a solution by a two-phase ion exchange procedure.
Ion exchange equipment is used to adjust the ionic content of water.
pH electrodes and oxygen reduction potential (ORP) electrodes measure the voltage across a circuit formed by the measuring metal half-cell and the reference half-cell.
pH and oxidation reduction potential (ORP) instruments measure or monitor pH (relative concentration of hydrogen ions [H+] in a solution) as well as ORP.
Industrial paints are pigmented liquids or powders that are used to protect and/or beautify substrates.
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Technical Articles
Polymer - OH Number with Model 412 (.pdf)
- Spectrometers and Analytical Photometers
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