Complaint
Note
MOQ:The minimum order quantity is 1-5 kg or any quantity you want to buy.
Customs clearance issues: Our products are sold to Germany, Brazil, Spain, UK, France, Canada, Poland, Russia, Australia, Netherlands, etc. There are no customs clearance issues, and the products are safely delivered to your hands.
Delivery time: generally available in stock, can be shipped within 2 days after the order is placed, the delivery time is about 7-15 days.
Tetrahydrofuran (THF) is a colorless, volatile liquid with an ethereal or acetonelike smell and is miscible in water and most organic solvents.It is highly flammable and may thermally decompose to carbon monoxide and carbon dioxide. Prolonged storage in contact with air and in the absence of an antioxidant may cause THF to decompose into explosive peroxides.
Tetrahydrofuran is used in the manufacture of polymers as well as agricultural, pharmaceutical, and commodity chemicals. Manufacturing activities commonly occur in closed systems or under engineering controls that limit worker exposure and release to the environment. THF is also used as a solvent (e.g., pipe fitting) that may result in more significant exposures when used in confined spaces without sufficient ventilation. Although THF is naturally present in coffee aroma, floured chickpeas, and cooked chicken, natural exposures are not anticipated to pose a significant hazard.
Test Description | Specifications |
Ethylene glycol | ≥99.8 |
Density ( at 20ºC) | 1.1128-1.1138 |
Color ( Pt-Co) | ≤5 |
Initial boiling point, ºC | ≥196 |
End boiling point, ºC | ≤199 |
Water (weight,%) | ≤0.1 |
Acidity (Acetic Acid, weight, %) | ≤0.001 |
Iron( weight, %) | ≤0.00001 |
Ash content( weight, %) | ≤0.001 |
Diethylene Glycol( weight, %) | ≤0.1 |
Aldehyde content ( Formaldehyde , weight, %) | ≤0.0008 |
UV transmittance,% (200nm ≥) | ≥75 |
UV transmittance,% (275nm ≥) | ≥92 |
UV transmittanc,% (350nm ≥) | ≥99 |
1.Butylene oxide is used as a fumigant and inadmixture with other compounds. It is usedto stabilize fuel with respect to color andsludge formation.
2.Tetrahydrofuran is used as a solvent forresins, vinyls, and high polymers; as a Grignardreaction medium for organometallic,and metal hydride reactions; and in the synthesisof succinic acid and butyrolactone.
3.Tetrahydrofuran is used primarily (80%) to make polytetramethylene ether glycol, the base polymer used primarily in the manufacture of elastomeric fibers (e.g., spandex) as well as polyurethane and polyester elastomers (e.g., artificial leather, skateboard wheels). The remainder (20%) is used in solvent applications (e.g., pipe cements, adhesives, printing inks, and magnetic tape) and as a reaction solvent in chemical and pharmaceutical syntheses.
Packaging Details:
200kg/drum
Delivery Detail: within 10 days when get the payment.
Shipping :
We have Professional shipping agent, based on customers ' demand for transport
By express :FEDEX,DHL,EMS ,UPS,TNT ect.
By SEA and By AIR
Storage:
Pack in paper-drums and two plastic-bags inside.
Net Weight: 25kgs/paper-drum.
1kg-5kgs plastic bag inside with aluminum foil bag outside.
Net Weight: 20kgs-25kgs/paper-drum.
Store in a well-closed container away from moisture and light.
Why choose us?
Q: How to start orders or make payments?
A:You can send our your Purchase order(if your company has), or just send a simple confirmation by email or by Trade Manager, and we will send you Proforma Invoice with our bank details for your confirmation, then you can make payment accordingly. for payment , can also be by western union ,money gram ,bitcoin ,that is very easy
Q: 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.
Q: What's your MOQ?
A:For the high value product, our MOQ starts from 1g and generally starts from 10gs. For other low price product, our MOQ starts from 100g and 1kg.
Q: Is there a discount?
A: Yes, for larger quantity, we always support with better price.
Q:How do you treat quality complaint?
A: First of all, our quality control will reduce the quality problem to near zero. If there is a quality problem caused by us, we will send you free goods for replacement or refund your loss.
Q:How to contact us ?
A: You can choose your interested products and send inquiry to us.
You can dial our telephone directly, you will get our reply.
Send Email to us.
Q:what is the shipping way ?
A: for small order ,we ship by air express ,like Fedex, TNT,DHL,EMS , for large order ,we can send by air to the air port and send by sea to the sea port
