Sodium Chloride Water
Reference data and engineering information about sodium chloride water for chemistry applications.
Overview
Engineering reference data for Sodium Chloride Water in chemistry.
Key Formulas
Ideal Gas Law
Pressure × Volume = moles × gas constant × temperature.
Molarity
Moles of solute per liter of solution.
pH
Measure of acidity.
Variables
| Symbol | Description | Unit |
|---|---|---|
| Pressure | Pa | |
| Volume | m³ | |
| Moles | mol | |
| Gas constant | 8.314 J/(mol·K) |
Coolant Properties
Sodium chloride solutions are commonly used as coolants and antifreeze agents. Key engineering properties of these solutions depend on concentration and temperature:
Freezing Point Depression
The freezing point decreases as NaCl concentration increases, providing antifreeze protection for cooling systems.
Density Variation
Solution density increases with NaCl concentration, affecting system mass and hydrostatic pressure calculations.
Specific Heat Capacity
The specific heat of NaCl solutions is lower than pure water and decreases with concentration, impacting heat transfer efficiency.
Dynamic Viscosity
Viscosity increases with concentration but decreases with temperature, influencing pumping power requirements and flow characteristics.
These properties are essential for designing cooling systems, heat exchangers, and freeze protection applications. Specific values vary significantly with concentration (typically 5-23% by weight) and operating temperature range.