Hydrochloric acid Analyser (HCl)

Hydrochloric acid is a solution of hydrogen chloride in water:

HCl + H₂O H₃O⁺ + Cl⁻

Some points of use in the industry

• Vinyl chloride for PVC
• MDI/TDI for polyurethane
• Production of cleaning agent
• Many other applications

Technology

The technology of Ultrasonic Density is explained here.

Our probes

Arenal offers a variety of probes to measure HCl concentrations online:

1. If a general indication of the concentration is required, our torroidal (electrodeless) conductivity sensor is suitable for the full range 0-36 wt%, except for the range 16-22 wt% or Baumé (Bé). In this small range, the conductivity curve bends and the accuracy of the sensor is too low to determine small variations. We can offer PP, PVC, PVDF torroidal probes. Interested? Fill in the questionnaire and request the QP025-TCP-INL probe.
2. If highest accuracy is required, the ultrasonic spectroscopy sensor is the best choice. The speed of sound graph gives a similar signal as the the conductivity, and is more accurate, which makes the sensor ideal for use in a broad range and for determining its concentrations on 4 digits over the full range. The materials used are PP or PVDF and zirconiumoxide (ZrO2): only the extractive analysis embodiment is possible at the moment.

Embodiments

When choosing ultrasonic spectroscopy sensors, we herewith help you selecting the correct products. Arenal offers solutions for applications with a variety of embodiments. Actually in most cases only the probe size, body shape, body material and sensor material changes, while the transmitter and Analysers keeps the same.