Yes, this product is inhibitor-free. The terms stabilizer and inhibitor for BHT are used interchangeably.
401757
Tetra-hidrofurano
≥99.9%, anhydrous, inhibitor-free
Tetrahydrofuran
Sinônimo(s):
Oxolano, Óxido de butileno, Óxido de tetrametileno
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| Para você/SKU | Disponibilidade | Preço |
|---|---|---|
100 mL | Disponível para envio HOJEdeCajamar | R$ 531,00 |
1 L | Disponível para envio HOJEdeCajamar | R$ 570,00 |
2 L | Previsão de entrega em16 de julho de 2026deCajamar | R$ 914,00 |
12 x 100 mL | Previsão de entrega em27 de julho de 2026deCajamar | R$ 4.785,00 |
Sobre este item
Fórmula linear:
(CH2)3CH2O
Número CAS:
Peso molecular:
72.11
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12191501
EC Number:
203-726-8
MDL number:
Beilstein/REAXYS Number:
102391
Assay:
≥99.9%
Grade:
anhydrous
Bp:
65-67 °C (lit.)
Vapor pressure:
114 mmHg ( 15 °C), 143 mmHg ( 20 °C)
Assistência Técnica
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Estamos aqui para ajudarNome do produto
Tetra-hidrofurano, anhydrous, ≥99.9%, inhibitor-free
grade
anhydrous
Quality Segment
vapor density
2.5 (vs air)
vapor pressure
114 mmHg ( 15 °C), 143 mmHg ( 20 °C)
assay
≥99.9%
form
liquid
autoignition temp.
610 °F
expl. lim.
1.8-11.8 %
impurities
≤20 ppm peroxide (as H2O2), <0.002% water, <0.005% water (100 mL pkg)
evapn. residue
<0.0005%
refractive index
n20/D 1.407 (lit.)
pH
~7
bp
65-67 °C (lit.)
mp
−108 °C (lit.)
solubility
H2O: soluble
density
0.889 g/mL at 25 °C (lit.)
SMILES string
C1CCOC1
InChI
1S/C4H8O/c1-2-4-5-3-1/h1-4H2
InChI key
WYURNTSHIVDZCO-UHFFFAOYSA-N
General description
Tetrahydrofuran (THF) is a saturated cyclic ether with a potential use as a biofuel. Its combustion studies have been investigated. Reports suggest that it is a better promoter than 1,3 dioxolane for CO2-hydrate formation.
Application
Tetrahydrofuran was used as a solvent in the formation of diacetylinic polymers.
It may be used in the following processes:
It may be used in the following processes:
- Formation of butyrolactone (BTL) by green oxidation method.
- Aqueous THF solution to modify the polystyrene surface by swelling process.
- As a solvent for lignin depolymerization to isolate phenolic monomer.
Packaging
Other Notes
"Greener alternatives are available for many THF applications, 2-Methyltetrahydrofuran (673277) and Cyclopentyl methyl ether (791962)
Read more about THF alternatives:
2-Methyltetrahydroun (2-MeTHF): A biomass-Derived solvent with Broad Applications in Organic Chemistry
The toxicological assessment of cyclopentyl methyl ether (CPME) as a green solvent"
Read more about THF alternatives:
2-Methyltetrahydroun (2-MeTHF): A biomass-Derived solvent with Broad Applications in Organic Chemistry
The toxicological assessment of cyclopentyl methyl ether (CPME) as a green solvent"
Pure-Pac® II containers require the Micromatic MacroValve coupler for dispensing solvents, Z560723.
Legal Information
Pure-Pac is a registered trademark of Merck KGaA, Darmstadt, Germany
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Este Item | |||
|---|---|---|---|
| Quality Level 200 | Quality Level 100 | Quality Level 100 | Quality Level 200 |
| assay ≥99.9% | assay ≥99.9% | assay ≥99.0% | assay ≥99.9% |
| grade anhydrous | grade HPLC grade | grade - | grade ACS reagent, puriss. p.a. |
| solubility H2O: soluble | solubility - | solubility - | solubility - |
| form liquid | form liquid | form liquid | form liquid |
| vapor pressure 114 mmHg ( 15 °C), 143 mmHg ( 20 °C) | vapor pressure 114 mmHg ( 15 °C), 143 mmHg ( 20 °C) | vapor pressure 114 mmHg ( 15 °C), 143 mmHg ( 20 °C) | vapor pressure 114 mmHg ( 15 °C), 143 mmHg ( 20 °C) |
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Danger
Hazard Classifications
Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - STOT SE 3
target_organs
Central nervous system, Respiratory system
supp_hazards
Classe de armazenamento
3 - Flammable liquids
flash_point_f
-6.2 °F - closed cup
flash_point_c
-21.2 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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Is inhibitor-free the same as unstabilized? My impression is that BHT is an additive used to prevent peroxide formation, I am not sure if the term "stabilizer" or "inhibitor" for BHT is used interchangeably.
1 answer-
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Is this product suitable for TPU 3d print smoothing?
1 answer-
Tetrahydrofuran (THF) is not typically recommended for smoothing TPU (Thermoplastic Polyurethane) 3D prints. While THF is a solvent for some thermoplastics, including certain types of polyurethanes, it can be aggressive and may lead to undesirable effects on TPU, such as degradation or surface damage.
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdfHelpful?
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Is this product (401757-1L) considered UPLC grade THF (without inhibiter)?
1 answer-
No, this product is not considered to be a UPLC grade. The purity is determined by GC.
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
Helpful?
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Are the products 227056-1L N,N-Dimethylformamide and 401757-1L Tetrahydrofuran come with a SureSeal Cap?
1 answer-
Yes, according to the material BOM. 401757-1L is 10mm and 227056-1L is 5mm
Helpful?
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What is the material of the Sure/Seal septum? Does it contain silicon? Is there a risk of parts of it falling into the product?
1 answer-
The Sure/Seal septum is made of a robust, proprietary elastomer that does not allow any particulates to contaminate the product contents. For frequent access , it is recommended to puncture the septum in a square pattern around the border of the hole cap. This pattern may be gradually reduced until reaching the center of the septum.
Helpful?
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Which type of syringes or needles do you recommend for extracting products from a Sure/Seal bottle?
Which type of syringes or needles do you recommend for extracting products from a Sure/Seal bottle?
1 answer-
Products packaged in Sure/Seal bottles may be accessed using a non-coring needle of an 18 or lower gauge. This item is an 18 gauge, 12 inch needle with a slightly curved tip to prevent coring.
Please see the link below to review product Z101141, as an example.
https://www.sigmaaldrich.com/product/aldrich/z101141Helpful?
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Hi! For this product 401757-1L, does it come automatically with a Sure-Seal cap?
1 answer-
Product 401757-1L is packaged in an amber glass bottle with a Sure/Seal™ cap. Please see the link below for additional information regarding the Sure/Seal system: https://www.sigmaaldrich.com/technical-documents/technical-article/chemistry-and-synthesis/organic-reaction-toolbox/sureseal
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