What does not occur when using glycol compared to sodium chloride as a brine?

When comparing glycol to sodium chloride as a brine, the option related to increased corrosion does not occur with glycol. Sodium chloride, or table salt, is known to be highly corrosive to metals, especially in solutions where it is concentrated. The chloride ions in sodium chloride actively participate in the corrosion process, leading to rust and degradation of metal surfaces over time.

Glycol, on the other hand, typically has better corrosion resistance properties compared to sodium chloride. It is less aggressive toward metals and is often used in commercial applications, like antifreeze formulations, due to its ability to protect metals from corrosion while still providing effective heat transfer and freezing point depression.

In addition to the corrosion aspect, glycol has other characteristics such as a lower freezing point than sodium chloride, higher viscosity, and potentially reduced cooling efficiency depending on the formulation and concentration. However, the notable distinction is the corrosion resistance provided by glycol, which makes it a preferred choice in contexts where metal protection is a priority.