Basic property Acetic acid, the content of about 30%, is liquid at room temperature. The content of ice acetic acid is more than 98%, it can be considered pure acetic acid, this acetic acid is liquid above 14 degrees Celsius, below 14 degrees Celsius, that is, solid, the appearance is very like ice, so it is called ice acetic acid, even if the weather is less than freezing in the north, but also pay attention to anti-freezing. The vinegar we eat contains about 3% acetic acid, and white vinegar is mixed with acetic acid, which has enough acidity and poor taste. Brewing vinegar has a lot of flavor substances, good taste. The freezing point of glacial acetic acid should be 16.6 degrees, and below 16 degrees it is solid, like water frozen. Food grade ice acetic acid (99% content) Edible ice acetic acid was prepared from ethanol produced by fermentation.…