Antifreeze is toxic.
Antifreeze is generally composed of a base liquid and additives. The base liquid is composed of water and ethylene glycol or diethylene glycol. The additives include rust inhibitors, antifungal agents, pH regulators and anticoagulants.
The chemical formula of ethylene glycol is (CH2OH)2, which is the simplest glycol. Ethylene glycol is a colorless, odorless, sweet-tasting viscous liquid. As automobile antifreeze and glass cleaner, it is widely used in the automobile repair and decoration industry.
Ethylene glycol is toxic to humans and animals, and its toxicity is low.
Acute toxicity: LD50 8.0 ~ 15.3g/kg (oral in mice); 5.9 ~ 13.4g/kg (oral in rats); 1.4ml/kg (oral in humans, lethal).
Extended information:
The purpose of antifreeze in the previous sentence of product classification is generally mechanical maintenance, and its ingredients belong to paint chemicals, so please pay attention to the following storage precautions:
1. Store in a dry, cool place and avoid exposure to sunlight.
2. The freezing point of antifreeze (containing ethylene glycol) changes with the concentration of ethylene glycol in the aqueous solution. When the concentration is below 59, the concentration of ethylene glycol in the aqueous solution increases and the freezing point decreases.
But after the concentration exceeds 59, as the concentration of ethylene glycol increases, its freezing point shows an upward trend. When the concentration rises to 100, its freezing point rises to -13 degrees. This is concentrated antifreeze. The reason why it cannot be used directly.
Baidu Encyclopedia-Antifreeze
Baidu Encyclopedia-Ethylene Glycol