Good price 99.99% Tetrahydrofuran(THF) cas 109-99-9
Tetrahydrofuran (THF), or oxolane, is an organic compound with the formula (CH2)4O. 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.
About 200,000 tonnes of tetrahydrofuran are produced annually. The most widely used industrial process involves the acid-catalyzed dehydration . Ashland/ISP is one of the biggest producers of this chemical route. The method is similar to the production of diethyl ether from ethanol. The butanediol is derived from condensation of acetylene with formaldehyde followed by hydrogenation.DuPont developed a process for producing THF by oxidizing n-butane to crude maleic anhydride, followed by catalytic hydrogenation. A third major industrial route entails hydroformylation of allyl alcohol followed by hydrogenation to 1,4-butanediol.
| Product name |
Adipic acid |
|
|
|
| Item |
Supperior class |
First class |
Qualified |
Result |
| Apprearance |
white crystaline powder |
|
|
white crystaline powder |
| Purity % m/m |
99.7 min |
99.7 min |
99.5 min |
99.8 |
| Melting point |
151.5 min |
151.5 min |
151 min |
152.8 |
| Ammonias solution color, pt-co |
5 max |
5 max |
15 max |
1 |
| Moisture % m/m |
0.20 max |
0.27 max |
0.4 max |
0.17 |
| Ash, mg/kg |
7 max |
10 max |
35 max |
4 |
| Iron, mg/kg |
1.0 max |
1.0 max |
3.0 max |
0.3 |
| Nitric acidS, mg/kg |
10.0 max |
10.0 max |
50.0 max |
1.1 |
| Oxidable matter, mg/kg |
60 max |
70 max |
--- |
17 |
| Chroma of melts, pt-co |
50 max |
--- |
--- |
10 |
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.
THF is used as a solvent in 3D printing when using PLA plastics. It can be used to clean clogged 3D printer parts, as well as when finishing prints to remove extruder lines and add a shine to the finished product. Recently THF is used as co-solvent for lithium metal batteries, helping to stabilize the metal anode.
Laboratory use
In the laboratory, THF is a popular solvent when its water miscibility is not an issue.
Reaction with hydrogen sulfide
In the presence of a solid acid catalyst, THF reacts with hydrogen sulfide to give tetrahydrothiophene.
Packing & Delivery
To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.
We will deliver the goods intact to you by express.
If you want to know the shipping cost, please send an inquiry with your address.
We have various of packages for different products and we are always pleased to satisfy customers' request.
Packaging:
180KG*80drum, 14.4 MTS/20'FCL
Shipping:
Promote shipping usually 7--14 days after receiving TT deposit .
Company Profile
What do we have? Quinoline, Isoquinoline, Dimethylquinoline, Indolone, Indene, 2-Indanone, α-methylnaphthalene, β-methylnaphthalene, mixed methylnaphthalene, industrial acenaphthene, industrial fluorene, Anthraquinone, carbazole, pyridine, refined naphthalene, industrial naphthalene etc.
After Sales Service
FAQ
Q1: Can I get some samples?
A: Yes, we can supply free sample , but the shipping cost be paid by customers.
Q2: How to start orders or make payments?
A : PI will be sent first after confirmation of order,enclosed our bank information.Payment by T/T, Western Union LC, Alibaba trade assurance or Paypal
Q3: What's your MOQ?
A : Our MOQ is 1ton. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q4: How about delivery leadtime?
A : Different quantity product need different time. usually About 10-15 days after payment confirmed.(Chinese holiday not included)
Q5: Is there a discount?
A : Different quantity has different discount.
Q6: How to confirm the Product Quality before placing orders?
A : You can get free samples for some products, you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests, we will manufacture the products according to your requests.
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