Acetic acid, systematically named ethanoic acid is an organic compound with the chemical formula CH3COOH (also written as CH3CO2H or C2H4O2). It is a colourless liquid that when undiluted is also called glacial acetic acid. Vinegar is roughly 3 %-9 % acetic acid by volume, making acetic acid the main component of vinegar apart from water.
Acetic acid has a distinctive sour taste and pungent smell. Besides its production as household vinegar, it is mainly produced as a precursor to polyvinylacetate andcellulose acetate. Although it is classified as a weak acid, concentrated acetic acid is corrosive and can attack the skin.
Acetic acid is the second simplest carboxylic acid (after formic acid) and is an important chemical reagent and industrial chemical, mainly used in the production of cellulose acetate for photographic film and polyvinyl acetate for wood glue, as well as synthetic fibers and fabrics. In households, diluted acetic acid is often used in descaling agents. In the food industry, acetic acid is used under thefood additive code E260 as an acidity regulator and as a condiment.
Specification
Acetic Acid 99%
ITEMS |
STANDARD |
Purity , %≥ |
99.8 |
99.0 |
98.0 |
Chroma,Hazen(platinum-cobalt) , ≤ |
10 |
20 |
30 |
Water , %≤ |
0.15 |
|
|
Formic acid , %≤ |
0.06 |
0.15 |
0.35 |
Acetic acid , %≤ |
0.05 |
0.05 |
0.10 |
Residue on evaporation , %≤ |
0.01 |
0.02 |
0.03 |
Iron , %≤ |
0.00004 |
0.00002 |
0.00004 |
Reduced potassium per manganat , ≥ |
30 |
5 |
|
Acetic Acid 75%
Items | Standards |
| Appearance | Clear and transparent liquid |
| Odor | Pungent, vinegar like, sour (strong) |
| Assay | ≥ 75 % |
| Evaporation Residue | ≤ 0.005% |
| Chlorides (Cl) | ≤ 4 ppm |
| Cobalt (Co) | ≤ 0.1 ppm |
| Sulphate (SO4) | ≤ 19 ppm |
| Iron (Fe) | ≤ 0.5 ppm |
| Lead (Pb) | ≤ 0.5 ppm |
| Titanium (Ti) | ≤ 0.1 ppm |
| Copper (Cu) | ≤ 0.1 ppm |
| Non volatiles (%) | ≤ 0.01 ppm |
| Specific Gravity (20ºC) | 1.05~ 1.10 |
Acetic Acid 70%
Items | Standards |
| Appearance | Clear and transparent liquid |
| Odor | Pungent, vinegar like, sour (strong) |
| Assay | ≥ 70 % |
| Evaporation Residue | ≤ 0.005% |
| Chlorides (Cl) | ≤ 4 ppm |
| Cobalt (Co) | ≤ 0.1 ppm |
| Sulphate (SO4) | ≤ 19 ppm |
| Iron (Fe) | ≤ 0.5 ppm |
| Lead (Pb) | ≤ 0.5 ppm |
| Titanium (Ti) | ≤ 0.1 ppm |
| Copper (Cu) | ≤ 0.1 ppm |
| Non volatiles (%) | ≤ 0.01 ppm |
| Specific Gravity (20ºC) | 1.05~1.10 |
Applications:-
Acetic Acid is one of the most important organic material.
Acetic Acid is mainly used in manufacturing of vinyl acetate,acetic ester, acetate, ethyl cellulose, and chloro acetic acid.
Acetic Acid can also be used in the field of synthetic fiber, binding agent, pharmacy, fertilizer and dyeing raw material, and in the field of plastic, rubber and printing as solvant.
Specifications of Glacial Acetic Acid:
Glacial Acetic Acid (Technical Grade) |
Item |
high-class |
First-class |
Qualified |
Glacial Acetic Acid,% |
99.8min |
99.5min |
98.5min |
Color |
10 max |
20max |
30max |
Formic acid content ,% |
0.15max |
0.20max |
|
Acetaldehyde content, % |
0.03max |
0.05max |
0.10max |
Formaldehyde content ,% |
0.05max |
0.10max |
0.30max |
Residue on evaporation, % |
0.01max |
0.02max |
0.03max |
Iron(fe) ,% |
0.000 04max |
0.000 2max |
0.000 4max |
Glacial Acetic Acid (Food Grade) |
Clacial Acetic Acid ,% |
99.5min |
Clacial Acetic Acid ,% |
99.5min |
Color |
20max |
Color |
20max |
Heavy Metals (Pb) ,w/% |
0.000 2% max |
Heavy Metals (Pb) ,w/% |
0.000 2% max |
Arsenic (As) ,w/% |
0.000 1% max |
Arsenic (As) ,w/% |
0.000 1% max |
Residue on evaporation ,% |
0.005max |
Residue on evaporation ,% |
0.005max |
Usage of Glacial Acetic Acid:
1. As one of most important organic raw materials, it is mainly used in such products as Vinyl acetate,
acetic anhydride, diketene, acetate ester, acetate, acetate fiber and chloroactic acid etc.
2. It is an important raw material for synthesized fiber, gooey, medicines, pesticides and dyes, and also a good organic solvent.
3. It is widely applied in such industries as of plastics, rubbers and printing etc.
4. Manufacture of acetic anhydride, vinyl acetate; Widely usedinsolvents, dyes, celluloseacetate, pharmaceuticals, in-socticides, textile printing,
Process of Glacial Acetic Acid:
According to GB/1903_2008,by fermentation method, corn is fermentated into alchohol vapors.
After oxidization reaction, we got acetaldehyde ,then it is further putified by re-distillation ,then got qualified acetic acid.
Package:
25kg/plastic drum, 20MT/20'FCL 30kg/plastic drum, 18MT/20'FCL
225kg/plastic drum, 18MT/20'FCL IBC 1100kg, 19.8MT/20'FCL
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