99.8% acetic acid liquid 99.8% CAS 64-19-7 acetic acid

Short Description:

Acetic Acid

Acetic acid, chemical formula CH3COOH, is an organic monobasic acid, the main component of vinegar.Pure anhydrous acetic acid (glacial acetic acid) is a colorless hygroscopic liquid.Freezing point is 16.6°C (62°F).After solidification, it is a colorless crystal and its aqueous solution is weakly acidic and highly corrosive.It is strongly corrosive to metals and the steam is irritating to the eyes and nose.

Acetic acid is widely distributed in nature, such as in fruit or vegetable oils.Acetic acid exists mainly in the form of esters.In animal tissues, excrement and blood, acetic acid exists in the form of free acid.Many microorganisms can convert different organic matter into acetic acid through fermentation.

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Food industry application

In the food industry, acetic acid is used as an acidulant, flavoring agent and flavoring agent in the manufacture of synthetic vinegar,dilute acetic acid to 4-5% with water, add various flavoring agents, the flavor is similar to that of alcohol,the manufacturing time is short and the price is cheap.As a sour agent, it can be used in compound seasonings, in the preparation of vinegar, canned food, jelly and cheese,using in moderation according to production needs.It can also be used as a flavor enhancer for koji wine, and the dosage is 0.1 to 0.3 g/kg.

Reacts with ammonia

Acetic acid can undergo an addition reaction with ammonia gas under the catalysis of lipase, and the hydroxyl group of acetic acid is replaced by amino group to form acetamide.

Fermentation takes place in a tower stuffed with sawdust or charcoal.The raw material containing alcohol drips in from the top of the tower and fresh air enters naturally or forced convection from below.The enhanced air volume allows this process to be completed in a few weeks, greatly reducing the time required to make vinegar.

Otto Hromatka and Heinrich Ebner first proposed the preparation of vinegar from a liquid bacterial culture medium in 1949.In this method, the alcohol is fermented to acetic acid under constant stirring and air is charged into the solution in the form of bubbles.By this method, vinegar containing 15% acetic acid can be prepared in two to three days.

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The following is the national standard of the People’s Republic of China on industrial acetic acid:





First grade


Chroma,Hazen Units (Platinum-Cobalt) ≤




Acetic acid content % ≥




Moisture % ≤




Formic acid content % ≤




Acetaldehyde content % ≤




Evaporation residue % ≤




Iron content (as Fe)% ≤




Reduction of potassium permanganate substances min ≥




acetic acid-15

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Transportation management

The time limit for railway transportation of this product is to use the tank car provided by the aluminum enterprise for shipment, and it must be reported to the relevant department for approval before shipment.For non-canned transportation by railway, it should be assembled in strict accordance with the Dangerous Goods Compatibility Table in the “Rules for the Transport of Dangerous Goods” of the Ministry of Railways. The packaging should be complete and the loading should be secure at the time of shipment.During transportation, make sure that the container does not leak, collapse, fall or be damaged.The tank (tank) truck used for transportation should have a grounding chain, and a hole partition can be set in the tank to reduce the shock and static electricity.It is strictly forbidden to mix and transport with oxidants, alkalis, edible chemicals, etc. When transporting by road, it is necessary to drive according to the prescribed route, and do not stop in residential areas and densely populated areas.

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Storage management

Store in a cool, ventilated warehouse. Keep away from fire and heat sources. In the freezing season, the storage temperature should be kept higher than 16 ℃ to prevent solidification.Keep container tightly closed. It should be stored separately from oxidants and alkalis, and should not be mixed.Use explosion-proof lighting and ventilation facilities. Prohibit the use of mechanical equipment and tools that are prone to sparks. Storage areas should be equipped with emergency release equipment and suitable containment materials.

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