CAS No.: | 79-09-4 |
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Formula: | CH3CH2cooh |
EINECS: | CH3CH2cooh |
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Propionic Acid, also known as Calcium Propionate, is a medium-strength carboxylic acid with the chemical formula C3H6O2 and molecular weight of 74.08 g/mol.Propionic Acid is a common organic compound with a variety of industrial and medical applications. Chemical Properties and Preparation Methods Propionic acid can be prepared by a variety of methods, including phytoextraction from acetoethanol, direct oxidation reaction of ethyl nitrate, and ethylene hydrocarboxylation. In addition, propionic acid can also be produced by biotechnological methods. Industrially, propionic acid is mainly produced by ethylene hydrocarboxylation using nickel carbonyl as a catalyst. Industrial applications Propionic acid has a wide range of industrial applications, mainly including: Food preservatives: propionic acid can stop the growth of bacteria and extend the shelf life of food. It is commonly used in cheese, baked goods, soft drinks, fruit juices and canned goods. Feed additives: Propionic acid and its ammonium salt are used as preservatives in animal feeds, accounting for about half of the world's propionic acid production. Other uses: Propionic acid is also used as an antimicrobial agent, insecticide, and in the production of leather, dyes and paints. Medical Applications Propionic acid also plays an important role in the treatment of mental illness and autism, improving mood, cognitive function, and reducing maladaptive behaviors and symptoms of depression, etc.1 In addition, calcium propionate is approved for use by the World Health Organization (WHO) and the Food and Agriculture Organization of the United Nations (FAO) as being virtually non-toxic to the human body, and it is commonly used as a preservative for food and feed. |
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 |
1 Q:Are you manufacturer? A: As an integrated enterprise, we have our own production lines on Methylene Chloride, Chloroform and Aniline oil , meanwhile we are one of the experienced distributors for other chemicals such as cyclohexanone, Dimethyl Formamide, Propylene Glycol, Ethylene Glycol, Dimethyl Carbonate, Thiourea, Polyol, TDI, IPA, Ethanol etc . W e have competitive price benefited by ready stock and good relations with some leading chemical m anufacturers.
2 Q: How can you guarantee your quality?
A: Our factory owns mature production line under EPR quality system. We can guarantee the stab ility and qualifi cation of the raw material s . And we also have SOP loading system to ensure the safety and timely transportation.
3 Q: Can I get some samples?
A: Yes, we welcome sample order for you to test and check our quality. Send me your requirement s of the product you need. We can provide sample free of charge , and the express cost is on you .
4 Q: How to confirm the Product Quality before placing orders?
A : You can get free samples from us or taking our previous SGS Report s as reference or arrange SGS before loading.
5 Q: What is your MOQ?
A: Our MOQ is 20'FCL for each product.
6 Q: What kind of package do you have?
A: We have various of packages to meet needs of our customers,like Iron drums, plastic drums, IBC tank s, Flexitank, ISO TANK and bags etc.
7 Q :Which kind of payment terms do you accept?
A:We prefer TT, LC payment terms. Other payment terms are flexible to be further discussed.
8 Q:Can you give me a discount price?
A: Yes. It depends on your order qty.
9 Q: How about your delivery? How long is your delivery time?
A: Prompt and reliable delivery by professional shipping line s .
Generally it takes 14 days after deposit or original LC.