The difference between glacial acetic acid and glacial acetic acid

Many people are full of questions about glacial acetic acid and glacial acetic acid. They don’t know what the difference is between glacial acetic acid and glacial acetic acid. However, there is actually no difference between the two. Glacial acetic acid is glacial acetic acid! The two have exactly the same molecular formula. Some people prefer to call it one or the other, but it is just their usual habit. So what exactly is glacial acetic acid (glacial acetic acid)? Let’s take a look.

1. Application

Uses: Mainly used in the synthesis of vinyl acetate, cellulose acetate, acetic anhydride, acetate esters, metal acetates and halogenated acetic acid, etc. It is also an important raw material for pharmaceuticals, dyes, pesticides and other organic syntheses. In addition, it is also widely used in the manufacture of photographic drugs, cellulose acetate, textile printing and dyeing, and rubber industry, as well as raw materials for manufacturing plastics, dye solvents, photography, medicine, pesticides, and other organic syntheses.

2. Appearance

Acetic acid, with a content of about 30%, is liquid at room temperature. Glacial acetic acid is considered pure acetic acid when its content is above 98%. This acetic acid is liquid above 14 degrees Celsius and solid below 14 degrees Celsius. It looks very much like ice, so it is called glacial acetic acid. Even if it is not freezing in the north, you should still take precautions against freezing.

The vinegar we eat contains about 3% acetic acid. White vinegar is blended with acetic acid. It has sufficient acidity but a poor taste. Brewing vinegar contains a lot of flavor substances and tastes good.

The freezing point of glacial acetic acid should be 16.6 degrees. Below 16 degrees, it is solid, just like water freezing.

Standard Description

This standard applies to industrial glacial acetic acid produced from acetylene, ethanol and ethylene as raw materials; it also applies to industrial glacial acetic acid produced by co-oxidation of paraldehyde and xylene.

English Name:Aceticacid

Molecular formula: C2H4O2; CH3COOH

Molecular weight: 60.05 (according to the 1985 international atomic weight)

Density: 1.0492

Boiling point: 117.9℃

CAS No.:64-19-7

3. Food grade glacial acetic acid

99% content

Market price: 3-5 yuan per kilogram

Edible glacial acetic acid is produced from ethanol produced by fermentation. This product is used as an acidulant and flavor enhancer in the food industry. It can be prepared into vinegar by proper dilution. When the content is 3-5%, it can be used directly as acetic acid. In daily use, add according to actual needs.