), Yangquan Market Supervision Bureau has decided to start from now until June 30. , to carry out a special vinegar rectification action in the city .
Do not use glacial acetic acid or industrial alcohol to produce vinegar!
Time of Update: 2022-04-20
> vinegar food . Relevant personnel from the Municipal Market Supervision Bureau , relevant town and street market supervision branches, and 9 certified vinegar production enterprises
Chinese scholars have made progress in electrocatalytic reduction of carbon monoxide to produce acetic acid
Time of Update: 2022-04-19
/> Schematic diagram of the electrocatalytic reduction of carbon monoxide to acetic acid by CuPd intermetallic compounds> Under the support of the National Natural Science Foundation of China (Grant Nos. 22025502
Spot shortage domestic acetic acid market is firm up
Time of Update: 2022-04-05
The spot supply of acetic acid in the domestic market continues to be tight, the price of acetic acid is rising at a high level, the market is starting to work steadily, and the industry’s inventory is low.
The acetic acid market is in short supply
Time of Update: 2022-03-18
According to the monitoring of the bulk data of the business agency, the domestic acetic acid market continued to rise due to the tight supply of acetic acid.
Jiangsu Thorpe's 30,000 tons/year acetic acid hydrogenation to ethanol project was put into operation
Time of Update: 2022-02-27
It was learned from the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, that on April 28, the 30,000-ton/year acetic acid hydrogenation to ethanol industrial demonstration
Exports of glacial acetic acid hit a high point in 2017
Time of Update: 2022-02-18
From September to October, due to the impact of Hurricane Harvey in the United States at the end of August, Celanese and Lyonder’s acetic acid plants were shut down as a result, including Celanese’s 1.
High upside demand supports the acetic acid market to break through the 5000 mark
Time of Update: 2022-02-11
According to the monitoring of bulk data, the domestic acetic acid market has risen sharply due to the tight market supply, with an increase
Announcement on the draft standard of glacial acetic acid medicinal excipients
Time of Update: 2022-01-21
Announcement on the draft standard of glacial acetic acid medicinal excipients Source: State Pharmacopoeia Commission Time: 2022-01-05 14:23: 52Print No.
Microbiome Wenzhou Medical University Gao Hongchang/Song Weihong discovered that acetic acid protects the cognitive function of diabetic mice
Time of Update: 2022-01-09
In conclusion, the study found that the depletion of acetic acid producing bacteria caused long-term acetic acid deficiency can reduce hippocampal synaptophysin levels and accelerate cognitive dysfunction in diabetic mice.
The physicochemical properties and preparation methods of acetic acid (1)
Time of Update: 2022-01-03
Preparation method 2 acetaldehyde oxidation methodIn the presence of manganese acetate (or cobalt, copper) catalyst, acetaldehyde air (or pure oxygen) undergoes liquid phase oxidation to generate acetic acid .
The physicochemical properties and preparation methods of acetic acid (2)
Time of Update: 2022-01-03
(3) Cativa processIn 1996, BP Chemical Company successfully developed a new Cativa process based on methanol carbonylation to synthesize acetic acid .
Technical indicators and application of acetic acid
Time of Update: 2022-01-03
(1) Acetic acid is weaker in acidity and less corrosive to metals .
Test method for mixed catalyst solution of cobalt acetate, manganese acetate and hydrobromic acid (3)
Time of Update: 2021-12-11
Use a mixture of water, nitric acid and glacial acetic acid as the titration medium, use dichloromethane as the precipitation flocculant, use ferric ammonium sulfate as the indicator, and titrate with potassium thiocyanate standard titration solution .
Test method for mixed catalyst solution of cobalt acetate, manganese acetate and hydrobromic acid (2)
Time of Update: 2021-12-11
5 Result calculationThe mass fraction w 1 of manganese (Mn 2+ ) content , expressed in %, is calculated according to formula (1): Where:V— The value of the volume of the standard titration solution (3.
Test method for mixed catalyst solution of cobalt acetate, manganese acetate and hydrobromic acid (5)
Time of Update: 2021-12-11
The amount of chloride (CI) standard solution added should be determined according to the limit value of the amide content of the sample.
Test method for mixed catalyst solution of cobalt acetate, manganese acetate and hydrobromic acid (1)
Time of Update: 2021-12-11
1 ScopeThis standard specifies the cobalt acetate , manganese acetate , hydrobromic test method of mixing catalyst solution .
Test method for mixed catalyst solution of cobalt acetate, manganese acetate and hydrobromic acid (4)
Time of Update: 2021-12-11
4. 2 Drawing standard curveWeigh cobalt acetate tetrahydrate , manganese acetate tetrahydrate , hydrobromic acid, and water according to the mass fraction ratio of each component in Table 2 , to the nearest 0.
Test method for mixed catalyst solution of cobalt acetate, manganese acetate and hydrobromic acid (7)
Time of Update: 2021-12-09
3. 2 Preparation of standard colorimetric solutionAccurately pipette appropriate amount of copper (Cu 2+ ) standard solution, place it in a 250mL separatory funnel, add 15mL nitric acid, 5mL ammonium citrate solution, 10mL ammonia, add (10±0.
