Tetrahydrofuran  ( THF ), or  oxolane , is an  organic compound  with the formula (CH ₂ ) ₄ O. The compound is classified as  heterocyclic compound , specifically a cyclic  ether . It is a colorless, water- miscible  organic liquid with low  viscosity . It is mainly used as a  precursor  to polymers.  Being  polar  and having a wide liquid range, THF is a versatile  solvent .
THF can also be synthesized by catalytic hydrogenation of  furan .  This allows  certain sugars  to be converted to THF via acid-catalyzed digestion to  furfural  and  decarbonylation  to furan, although this method is not widely practiced. THF is thus derivable from renewable resources.

Polymerization

In the presence of  strong acids , THF converts to a linear polymer called  poly(tetramethylene ether) glycol  (PTMEG), also known as polytetramethylene oxide (PTMO).

As a solvent

The other main application of THF is as an industrial solvent for  polyvinyl chloride  (PVC) and in  varnishes .
THF is often used in polymer science. 
THF is used as a component in mobile phases for  reversed-phase liquid chromatography .

Laboratory use

It is a popular solvent for  hydroboration  reactions and for  organometallic compounds  such as  organolithium  and  Grignard reagents .

Reaction with hydrogen sulfide

In the presence of a  solid acid catalyst , THF reacts with  hydrogen sulfide  to give  tetrahydrothiophene .


 

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.

Our Advantage

10 Years Experiences
Our products  have been promoted to  all over Europe,North&South America,  Middle-e ast, Asia and pacific area as well as Africa,we  have  establish ed  long term  cooperation with our clients .

Quality service
Adhering to the principle of "quality first,service the best" Near Chem insists on providing high quality chemicals based on a complete Quality Assurance System. Meanwhile,we use SOP system to guarantee our whole logistics.  Near Chem has built  a  mutual trust under honesty and integrity principles with customers all around the world .And will keep promoting our commitment to better a nearer Chem to the world.  
 
24 hour service
24 hours q uick and clear  respond  to  our  customers  all around the world .  Professional and  individual  after sale s  service  to assure the  Customer satisfaction.
FAQ

1 Q:Are you manufacture r?
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.

MAIN PRODUCT LIST