What is glacial acetic acid, mainly in what field application

What is glacial acetic acid, mainly in what field application,
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Quality specification

Physicochemical properties:
1.Colorless liquid and irritating dour.
2.Solubility  water, ethanol, benzene and ethyl ether immiscible, insoluble in carbon disulphide.
Storage:
1.Keep it in cool, ventilated place
2.Keep away from heat surface, sparks, open flames and other ignition sources, no smoking. In winter, keep it above 0 ℃ to prevent freezing.
3.Keep container tightly closed.must be kept separate from the oxidant and alkali.
4.Use explosion-proof [electrical/ventilating/lighting]equipment.
5.Use non-sparking tools.
6.Ground and bond container and receiving equipmen
Application
1. Instead of glacial acetic acid,it is used in dyeing and finishing pro-cesses of acrylic. dacron, nylon and other Chemical fiber,wool. silkand other animal fiber,cotton. linen. yarn and other plant fiber,Waxprinting,and blend fabric.
2. The adjustment of PH value of all kinds of acid pickling, dyeingbath (including color bath),color fixing,resin finishing etc.
3. Producing some kinds of dyestuff,such as Benzidine Yellow G.
Advantage
The function and effect are better than the other dyeing acid andglacial acetic acid.lt has no damage to the fiber,in dyeing bath pHvalue is stable.it have no acid fold,sediment and effects of hardwater,improve dye uptake and level-dyeing property of somedyestuff ,and have no effects on coloured light or color fastness ofayed products.In addition,no pungent smell, no frozen in winter, safeand easy to use.1. Application of glacial acetic acid in vinegar production.

In recent years, with the continuous competition of the economic market, manufacturers have developed a series of edible glacial acetic acid in order to save raw materials and reduce costs, so as to replace the main raw materials of vinegar barley and starch. Specifically, the application of glacial acetic acid in the production of vinegar is as follows:

(1) Rational use of glacial acetic acid. Reasonable use of glacial acetic acid in the production of edible vinegar can help to reduce the cost of vinegar production and enhance its market competitiveness.

(2) Increase the hydrolysis production of glacial acetic acid. Glacial acetic acid has the physical properties of high boiling point and melting point, so it can be directly dissolved into vinegar by adding water, and has a stable quality as vinegar.

(3) Pay attention to the quality of hydrolyzed glacial acetic acid. Although hydrolyzed glacial acetic acid can save production costs for manufacturers, increase its economic benefits, but in the process of hydrolyzed acetic acid for the proportion of glacial acetic acid should also be controlled in a relatively moderate range, otherwise it may affect the quality of edible vinegar, reduce its nutritional composition, so as to bring some losses to the enterprise’s economy.

2. Application of glacial acetic acid in the production of edible fungi.

As a chemical solvent, glacial acetic acid can be used not only in the production of edible vinegar, but also in the production of edible fungi. Specific applications should include the following points:

(1) Treatment of culture material. In the culture material of edible fungi, due to its storage time, some miscellaneous bacteria will breed in the culture material, and it is difficult to eliminate, thus affecting the quality of edible fungi.

(2) Open inoculation. For the cultivation of edible fungi, generally occurs in the inoculation box, but due to the influence of various factors, the cultivation of edible fungi in the inoculation box, the survival rate of cultivation is very low. Cultivation of edible fungi with glacial acetic acid could improve its cultivation efficiency.

(3) Space disinfection. Glacial acetic acid, as a chemical solvent, can also be used to disinfect Spaces. In the cultivation of edible fungi, there are often some breeding bacteria, which will cause great pollution and difficult to eliminate. In the process, if 0.5% glacial acetic acid can be sprayed and heated fumigation, it will help to reduce bacteria and ensure the cultivation quality of edible fungi.