| CAS No.: | 57-11-4 |
|---|---|
| Formula: | C18h36o2 |
| EINECS: | 200-313-4 |
| Type: | Synthesis Material Intermediates |
| Appearance: | Powder |
| Quality: | Industrial |
| Samples: |
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| Customization: |
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Audited Supplier is an important chemical raw material. and its derivatives are widely used in the synthesis of tree esters, grain preservation, food and feed additives, spices.
The earliest was prepared by condensation and separation from the gas produced by charcoal manufacturing and coal coking. In the 1950s, foreign countries developed the process of producing acetic acid by oxidation of light hydrocarbons. The product contains about 10% , which is obtained after separation and purification. In addition to the hydrocarbon oxidation method, the United States also has the method of carbonylation of ethylene, CO and H2 to synthesize and further oxidation to . Due to the development of low-pressure carbonylation process with rhodium complex as catalyst, oxidation method has developed rapidly in recent years. This method is superior to the traditional high-pressure method with carbonyl cobalt as catalyst.
| ANALYSIS ITEMS | STANDARD | ANALYSIS RESULT |
| Appearance | Colorless or light Yellow oily liquid; With slight pungent smell | Qualified (Hazen:<10) |
| PROPANOIC ACID,%≥ | 99.5 | 99.9 |
| RELATIVE DENSITY,d2020 | 0.993-0.997 | 0.997 |
| BOILING RANGE, ºC | 138.5-142.5 | 139.5-141.1 |
| EVAPORATION RESIDUE,% ≤ | 0.01 | 0.005 |
| MOISTURE,% ≤ | 0.15 | 0.02 |
| PROPYL ALDEHYDE,% ≤ | 0.05 | 0.03 |
| 0.05 | 0.02 | |
| As(mg/kg) ≤ | 3.0 | <3.0 |
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