What is the theoretical freezing point of glacial acetic acid?

The theoretical freezing point of glacial acetic acid is 16.7 degrees Celcius. It got it's name because it's freezing point is only slightly below room temperature.

Glacial acetic acid is the name for water-free (anhydrous) acetic acid. Similar to the German name Eisessig (ice-vinegar).

Potential Acute Health Effects:

Very hazardous in case of skin contact (irritant), of eye contact (irritant), of ingestion, of inhalation. Hazardous in case of skin contact (corrosive, permeator), of eye contact (corrosive). Liquid or spray mist may produce tissue damage particularly on mucous membranes of eyes, mouth and respiratory tract. Skin contact may produce burns. Inhalation of the spray mist may produce severe irritation of respiratory tract, characterized by coughing, choking, or shortness of breath. Inflammation of the eye is characterized by redness, watering, and itching. Skin inflammation is characterized by itching, scaling, reddening, or, occasionally, blistering.

Get more info about glacial acetic acid at CDC.gov and ScienceLab.com