Glacial acetic acid (pure), namely anhydrous acetic acid, acetic acid is an important organic acid and one of the organic compounds. It solidifies into ice at a low temperature, usually called glacial acetic acid. Volume expansion during solidification may cause the vessel to rupture. The flash point is 39 ℃, the explosion is 4.0% to 16.0%, and the allowable concentration in the air does not exceed 25mg/m3. Pure acetic acid freezes into ice like crystals below the melting point, so anhydrous acetic acid is also called glacial acetic acid.

Purpose:

It is mainly used to synthesize vinyl acetate, cellulose acetate, acetic anhydride, acetate, metal acetate and haloacetic acid. It is also an important raw material for medicine, dyes, pesticides and other organic synthesis. In addition, it is widely used in photopharmaceuticals, cellulose acetate, textile printing and dyeing and rubber industry. It is a solvent for manufacturing plastics and dyes, photography, medicine, pesticides and other organic synthetic raw materials.

Appearance introduction:

Acetic acid, content about 30%, liquid under normal temperature. The content of glacial acetic acid is more than 98%, which can be considered as pure acetic acid. The acetic acid is liquid above and below 14 ℃. It is solid and looks like ice. Therefore, it is called glacial acetic acid. Pay attention to antifreeze even in cold weather.

Edible vinegar contains about 3% acetic acid. White vinegar mixed with acetic acid. It has enough acidity and bad taste. The vinegar has many kinds of flavors and good taste.

Glacial acetic acid should have a freezing point of 16.6 degrees, and below 16 degrees is a solid, frozen like water.