| CAS No.: | 79-09-4 |
|---|---|
| Formula: | CH3CH2cooh |
| EINECS: | 201-176-3 |
|
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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 |
Shipping:
Promote shipping usually 7--14 days after receiving TT deposit or LC Original .
Shandong Near Chemical Co.,Ltd is located in the beautiful Yellow River Delta , the mouth of the Yellow River into the sea - Dongying City . W ith a registered capital of 30 million yuan , it was founded in 2011 and has grown rapidly with total assets 180 million yuan and 100 employees. Near Chemical is a comprehensive service company focusing on import & export of chemicals and domestic trade. We are integrating rich chemical resources along with individual customized services for all global clients.
Our company adheres to the market-oriented, committing to exploring the diversified international market, as well as the principle of honesty and trustworthiness. The clients of Near Chemical always come first.
In the past decade , Near Chemical has established a stable and friendly partnership with thousands of customers over 60 countries and regions. We have spread wide range of chemicals in various fields such as pharmac y , petroleum, animal husbandry, food processing, printing&dyeing, manufacturing industr ies etc. Near Chemical now has warehousing, trading, public utilities ,property management and other comprehensive entities, and gradually develop to collectivization, internationalization and Industrialization. Our company has a good development prospect and unlimited potential future.
Our main production lines are including Methylene Chloride 30,000 tons/year, Maleic Anhydride 30,000 tons/year, Propylene Glycol 20,000 tons/year.
Meanwhile, we specialized in offering the following chemicals: Aniline,Dimethyl F ormamide,Isopropanol ,Toluene diisocyanate,Polyether P olyol ,Polymer Polyol, Methyl Acetate, Ethyl Acetate, Butyl Acetate, Glacial Acetic Acid, Potassium Hydroxide, Nitrile Butadiene Rubber Latex, Caustic Soda, Dipropylene Glycol, Ethylene Glycol, Phenol, Phthalic Anhydride, C yclohexanone, Thiourea, Barium Carbonate, Aluminum Chloride, Calcium Nitrate, N-propanol, Methyl Ethyl Ketone, Methanol, Ethanol, C yclohexane, Dimethyl Carbonate, Dichlorodifluoromethane, Dichlorofluoromethane, Trichloroethylene, Tetrachloroethylene, Epichlorohydrin, Sodium Hydroxide Liquid, etc.
We always carry out "quality first and service the best" .
Near Chemical, Near U, Warm the world.
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.
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