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401757

Sigma-Aldrich

Tetrahidrofuran

Tetrahydrofuran

≥99.9%, anhydrous, inhibitor-free

Sinónimos:

THF, Oxolano, Óxido de butileno, Óxido de tetrametileno

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About This Item

Fórmula empírica (notación de Hill):
C4H8O
Número de CAS:
109-99-9
Peso molecular:
72.11
Beilstein/REAXYS Number:
102391
EC Number:
203-726-8
MDL number:
MFCD00005356
UNSPSC Code:
12191501
PubChem Substance ID:
57649919
NACRES:
NA.21
grade:
anhydrous
assay:
≥99.9%
bp:
65-67 °C (lit.)
vapor pressure:
114 mmHg ( 15 °C)
143 mmHg ( 20 °C)
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Nombre del producto

Tetrahidrofuran, anhydrous, ≥99.9%, inhibitor-free

grade

anhydrous

Quality Level

200

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

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General description

El tetrahidrofurano (THF) es un éter cíclico saturado con un uso potencial como biocombustible. Se ha investigado su combustión.[1] Los informes sugieren que es un mejor promotor que el 1,3 dioxolano para la formación de CO2-hidrato.[2]

Application

El tetrahidrofurano se utilizó como disolvente en la formación de polímeros diacetilínicos.[3]
Puede utilizarse en los procesos siguientes:
  • Formación de butirolactona (BTL) mediante un método de oxidación verde.[4]
  • Disolución acuosa de THF para modificar la superficie de poliestireno mediante el proceso de hinchamiento.[5]
  • Como disolvente para la despolimerización de la lignina con el fin de aislar el monómero fenólico.[6]

Packaging

Véase opciones de recipientes retornables.

Other Notes

Los recipientes Pure-Pac® II precisan el acoplador Micromatic MacroValve, Z560723, para la dispensación de los disolventes.
«Existen alternativas más ecológicas para muchas aplicaciones del THF, el 2-metiltetrahidrofurano (673277) y el ciclopentil metil éter (791962)

Más información sobre las alternativas al THF:

2-metiltetrahidrofurano (2-MeTHF): Disolvente derivado de la biomasa con amplias aplicaciones en química orgánica

La evaluación toxicológica del ciclopentil metil éter (CPME) como disolvente ecológico»

Legal Information

Pure-Pac is a registered trademark of Merck KGaA, Darmstadt, Germany

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Carc. 2 - Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3

target_organs

Central nervous system, Respiratory system

supp_hazards

EUH019

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

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

Elija entre una de las versiones más recientes:

Certificados de análisis (COA)

Lot/Batch Number
SHBS4025
SHBS2117
SHBS0192
SHBS0770
SHBS2502

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Supelco

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Tetrahidrofuran

Structuring of polystyrene surface via swelling-freezing drying in a binary solvent solution.
Liang S, et al.
Journal of Porous Materials, 22, 859-865 (2015)
Novel Diacetylinic Aryloxysilane Polymers: A New Thermally Cross-Linkable High Temperature Polymer System.
Drake K, et al.
Macromolecules, 46(11), 4370-4377 (2013)
Oxidation of tetrahydrofuran to butyrolactone catalyzed by iron-containing clay.
Ausavasukhi A and Sooknoi T.
Green Chemistry, 17(1), 435-441 (2015)
1,3 Dioxolane versus tetrahydrofuran as promoters for CO2-hydrate formation: Thermodynamics properties, and kinetics in presence of sodium dodecyl sulfate.
Torre JP, et al.
Chemical Engineering Science, 126, 688-697 (2015)
An efficient and economical process for lignin depolymerization in biomass-derived solvent tetrahydrofuran.
Long J, et al.
Bioresource Technology, 154, 10-17 (2014)
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Solvent Miscibility Table

Substances are said to be miscible in one another if they dissolve to form a uniform solution. Bookmark or download our miscibility table for common lab solvents.

Tabla de miscibilidad de disolventes

Se dice que las sustancias son miscibles entre sí si se disuelven hasta formar una disolución uniforme. Marque o descargue nuestra tabla de miscibilidad para los disolventes comunes del laboratorio.

2 Reviews This action will navigate to reviews.

Questions

1–7 of 7 Questions  

  1. Is this product (401757-1L) considered UPLC grade THF (without inhibiter)?

    1 answer

    1. No, this product is not considered to be a UPLC grade. The purity is determined by GC.

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. 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

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  3. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. 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/449/386/product-dating-information-mk.pdf

      Helpful?

  4. Are the products 227056-1L N,N-Dimethylformamide and 401757-1L Tetrahydrofuran come with a SureSeal Cap?

    1 answer

    1. Yes, according to the material BOM. 401757-1L is 10mm and 227056-1L is 5mm

      Helpful?

  5. 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

    1. 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.

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  6. Which type of syringes or needles do you recommend for extracting products from a Sure/Seal bottle?

    1 answer

    1. 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/z101141

      Helpful?

  7. Hi! For this product 401757-1L, does it come automatically with a Sure-Seal cap?

    1 answer

    1. 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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