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676764

Sigma-Aldrich

Tetrahidrofuran

≥99.0%, ACS reagent, contains 200-400 ppm BHT as inhibitor, suitable for HPLC

Sinónimos:

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:
102391
Número CE:
203-726-8
Número MDL:
MFCD00005356
Código UNSPSC:
12191501
ID de la sustancia en PubChem:
329760651
NACRES:
NA.07
bp:
65-67 °C (lit.)
En este momento no podemos mostrarle ni los precios ni la disponibilidad

Nombre del producto

Tetrahidrofuran, ACS reagent, ≥99.0%, contains 200-400 ppm BHT as inhibitor

grado

ACS reagent

densidad de vapor

2.5 (vs air)

presión de vapor

114 mmHg ( 15 °C)
143 mmHg ( 20 °C)

Ensayo

≥99.0%

Formulario

liquid

temp. de autoignición

610 °F

contiene

200-400 ppm BHT as inhibitor

lim. expl.

1.8-11.8 %

técnicas

HPLC: suitable

impurezas

≤0.015% peroxide (as H2O2)
≤0.05% water

residuo de evap.

≤0.03%

color

APHA: ≤20

índice de refracción

n20/D 1.407 (lit.)

pH

~7

bp

65-67 °C (lit.)

mp

−108 °C (lit.)

densidad

0.889 g/mL at 25 °C (lit.)

cadena SMILES

C1CCOC1

InChI

1S/C4H8O/c1-2-4-5-3-1/h1-4H2

Clave InChI

WYURNTSHIVDZCO-UHFFFAOYSA-N

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Descripción general

Tetrahydrofuran (THF) is a heterocyclic compound (cyclic ether). It is colorless, has low viscosity, and good solubility in a wide range of solvents. It is widely used as a solvent in organic synthesis, being very popular in reactions with organometallic compounds and Grignard reagents. Due to organic peroxides formation on long term storage, THF is usually stabilized by adding butylated hydroxytoluene (BHT). BHT removes the free radicals required for the peroxide formation.

Aplicación

Tetrahydrofuran (THF) is used as a solvent in the following processes:
  • Organic synthesis
a) Grignard
b) Organometallic compounds
c) Reformatsky
d) Lithiation
e) Hydride reduction
f) Metal-catalyzed coupling (Heck, Stile, Suzuki)
g) Lewis acid mediated reactions
  • Crystallization
  • Polymerization. Ex. RAFT (Reversible Addition-Fragmentation Chain Transfer) polymerization of p-acetoxystyrene
  • Coatings
  • As an O-donor ligand to form coordination complexes
  • As mobile phase solvent in high-performance liquid chromatography

Características y beneficios

ACS solvents meet or exceed the high standards of the American Chemical Society (ACS) ,with test specifications that are specialized to every compound. According to the American Chemical Society, ACS reagent grade implies that it is a substance of sufficient purity to be used in most chemical analyses or reactions.

Otras notas

Go to our Greener Alternative-2-Methyl Tetrahydrofuran - 155810

Go to our Greener Alternative-Cyclopentyl methylether - 675989

Palabra de señalización

Danger

Clasificaciones de peligro

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

Órganos de actuación

Respiratory system

Riesgos supl.

EUH019

Código de clase de almacenamiento

3 - Flammable liquids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

-6.2 °F - closed cup

Punto de inflamabilidad (°C)

-21.2 °C - closed cup

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Certificados de análisis (COA)

Lot/Batch Number
SHBS0415
SHBP5059
SHBR6571
SHBQ0955
SHBR0389

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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.
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Novel Diacetylinic Aryloxysilane Polymers: A New Thermally Cross-Linkable High Temperature Polymer System.
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Questions

1–2 of 2 Questions  

  1. 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

      Helpful?

  2. 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

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