Acetic acid
Product Description：
Glacial acetic acid
Acetic acid, also known as acetic acid or glacial acetic acid, with the chemical formula CH₃COOH, is an organic monocarboxylic acid and the source of the sour taste and pungent odor in vinegar. Pure anhydrous acetic acid (glacial acetic acid) is a colorless, hygroscopic liquid with a freezing point of 16.7℃ (62℉), solidifying into colorless crystals. Acetic acid is a saturated carboxylic acid containing two carbon atoms and is an important oxygen-containing derivative of hydrocarbons.
Although acetic acid is a weak acid based on its dissociation ability in aqueous solution, it is corrosive, and its vapor is irritating to the eyes and nose. Ordinary vinegar contains 3%–5% acetic acid. Acetic acid is a colorless liquid with a strong, pungent odor.
Basic components of acetic acid:
Molecular formula C₂H₄O₂, structural formula CH₃COOH, HAC is the abbreviation. The functional group in the structural formula is a carboxyl group, and the CAS number is 64-19-7. Because it is the main component of vinegar, it is also called acetic acid. For example, it exists primarily in the form of ester compounds in fruits or vegetable oils; and in the form of free acids in animal tissues, excrement, and blood.
Specification：
| Commodity | Glacial Acetic Acid | Standard | GB/T1628-2008 | ||
| Items | Unit | Index | Result | ||
| Superior | First-grade | Qualified | |||
| Appearance | Transparent liquid without suspendedsolids and mechanical impurities |
qualified |
|||
| Chromaticity (in Hazen) (Pt-Co)≤ |
_ |
10 |
20 |
30 |
5 |
| Acetic acid content ≥ | % | 99.8 | 99.5 | 98.5 | 99.8 |
| Moisture content ≤ | % | 0.15 | 0.20 | —— | 0.07 |
| Formic acid content ≤ | % | 0.05 | 0.10 | 0.30 | 0.02 |
| Acetaldehyde content ≤ | % | 0.03 | 0.05 | 0.10 | 0.01 |
| Evaporation residue ≤ | % | 0.01 | 0.02 | 0.03 | 0.006 |
| Fe Content ≤ | % | 0.00004 | 0.0002 | 0.0004 | 0.00002 |
| Permanganate-reducing substances ≥ | min | 30 | 5 | —— | >30 |
Application：
(1) It is widely used in the production of vinylon, polyvinyl alcohol, vinyl copolymer resins, adhesives, coatings, etc.
(2) It is used as a solvent in many industrial chemical reactions, in the fields of nitrocellulose, inks, and artificial leather.
(3) It is used in the manufacture of acetates, cellulose acetate, pharmaceuticals, fragrances, dyes, etc.
Product packaging：
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