1.Physical Properties:

Boiling Point (℃): 117.9

Freezing Point (℃): 16.6

Relative Density (water as 1): 1.050

2.Chemical Properties:

Appearance and Odor: colorless liquid with pungent acetic acid smell.

Solubility: soluble in water, ethanol, ether, carbon tetrachloride and glycerol and other organic solvents.

Vinegar is an aqueous solution containing mainly acetic acid 2% to 9% (mass fraction), brewing vinegar in addition to acetic acid, but also contains a variety of amino acids and many other trace substances.

Vinegar is a traditional flavoring in major Chinese cuisines. According to the existing written records, the ancient Chinese working people to wine as a fermentation agent to ferment the brewing of vinegar, oriental vinegar originated in China, according to the documented history of vinegar brewing at least in more than three thousand years. The ancient Chinese name for vinegar is "酢", "醯", "苦酒", etc. "you "is the name of vinegar. "You" is the earliest oracle bone inscription of the word "wine". At the same time, "vinegar" is called "bitter wine", which also indicates that "vinegar" originated from "wine".

China's famous vinegars are "Mysterious Xiangxi" Original Vinegar, Zhenjiang Vinegar, Shanxi Old Pale Vinegar, Bao'ning Vinegar, Tianjin Duliu Old Vinegar, Fujian Yongchun Old Vinegar, Guangling Dengfangbao Vinegar, Qishan Vinegar, Henan Old Turtle Vinegar, and Red Currant Rice Vinegar. Drinking vinegar often can play a role in eliminating fatigue, etc. Vinegar can also cure the role of colds.

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