| CAS No.: | 79-09-4 |
|---|---|
| Formula: | C3h6o2 |
| EINECS: | 201-176-3 |
| Carboxyl No.: | Dicarboxylic Acid |
| Alkyl No.: | Unsaturated Acid |
| Appearance: | Liquid |
| Samples: |
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| Customization: |
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Audited Supplier Propionic acid is an important chemical raw material. Propionic acid and its derivatives are widely used in the synthesis of tree esters, grain preservation, food and feed additives, spices.
The earliest propionic acid 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% (propionic acid), 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 propionaldehyde and further oxidation to propionic acid. Due to the development of low-pressure carbonylation process with rhodium phosphine complex as catalyst, propionaldehyde 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 |
| FORMIC ACID,% ≤ | 0.05 | 0.02 |
| As(mg/kg) ≤ | 3.0 | <3.0 |
Although there are many synthetic methods of propionic acid, there are only three methods to realize industrial production: Rapa method, propionaldehyde oxidation method and light hydrocarbon oxidation method. At present, only a small amount of propionic acid is produced by light hydrocarbon oxidation in China.
220kg/drum, adjustable , according to customer requirement
company specializes in the development and production of organic acids, alcohols, esters and metal ingot. The R&D center is located in Shijiazhuang High-tech Development Zone, covering an area of 1000 square meters.
We have been manufacturing and exporting for 20 years. In line with the principle of "customer first, quality first", we have passed the ISO quality system certification. We also let SGS test product quality in accordance with national standards, and try our best to meet the multiple needs of customers. From raw material procurement, production process to product inspection, we have established a strict quality standard inspection system. The quality manager conducts standard inspection at every stage of packing, delivery, loading and transportation. The pursuit of excellent quality is our core power of development, dedication to customer service is our eternal purpose!
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