Heavy hydrocarbons
اسفند ۲۵, ۱۳۹۶Butyl glycol
اسفند ۲۴, ۱۳۹۶Properties of coolant fluids
۱- Anti-freeze should be able to lower the freezing point to the minimum possible temperature in the winter.
۲- Chemical and functional stability.
۳- It has a high boiling point and does not precipitate at high temperatures.
۴- Do not use on the rubber used in the system with undesirable effects.
۵- Transfer the heat well and have no adverse effect on the heat exchanger in the cooling system.
۶- Has the lowest toxic effect.
۷- No firefighter.
۸- No bad odor.
۹- Have a partial foot.
۱۰- The coefficient of thermal expansion is low.
۱۱- Low viscosity and low viscosity at low temperatures.
۱۲- The most protection against corrosion of metals used in the cooling system.
۱۳- Does not affect the color of the car’s body.
Recommendations
It should be noted that, contrary to the beliefs of some people, the anti-freeze in the freezer can not be ascribed to its quality. In this way, only the anti-freeze anti-freezing properties are measured and the presence of corrosion inhibitors is not measured in this method, nor can it be understood that the fluid The main anti-freeze is of high quality glycols or of dimethylmethanol, which is toxic and flammable.
Since the pure anti-freeze is frozen at 5 to 18, if the pure anti-freeze is placed in a freezer and frozen at a temperature below 18 ° C, it indicates its mixing with water and its poor viscosity.
Some consumers think that a lower freezing point can be achieved by adding anti-freeze. This is completely wrong, and concentrations of more than 68% volatile anti-freeze in water are not recommended because they are present at 68% (68% anti-freeze and 32% water) The mixture will have the lowest point of formation (-69 degrees Celsius), and if the anti-freeze concentration of this amount is higher, the freezing point of the solution will go up and become frozen sooner.
