cryoscopeIt is an optical instrument designed based on the correspondence between solution concentration (corresponding to freezing point) and refractive index. This instrument can quickly test the crystallization freezing point of ethylene glycol and propylene glycol antifreeze and measure the specific gravity (relative density) of battery water. It can also be used for non freezing fluids such as car cooling water and refrigerant fluids.

The probe measures the freezing point temperature of the mixed sample and uses the internal calculation formula of the instrument to obtain the percentage of water added to the milk sample.cryoscopeIt is used to accurately detect the addition of water to milk. Due to the dissolution of various components such as fat and protein in milk, the freezing point is lower than that of water. The average freezing point of normal milk is -0.530 degrees Celsius, while the freezing point of water is 0 degrees Celsius. If water is added to milk, the freezing point of the entire sample will rise. Under normal circumstances, when 1% water is added, the freezing point of the mixed sample will increase by about 0.0053 degrees Celsius. When 100% water is added, the temperature will increase by 0.530 degrees Celsius. At this time, the instrument displays a freezing point temperature of 0 degrees Celsius, while the water added is 100%.