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Tetrahydrofuran

≥99.5%, ≥99.5% (GC), for ion-selective electrodes, contains 250 ppm BHT as inhibitor, Selectophore™

Synonym(e):

Butylenoxid, Oxolan, Tetramethylenoxid

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100 ML
CHF 76.70
500 ML
CHF 233.00

CHF 76.70

Voraussichtliches Versanddatum26. Mai 2025

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100 ML
CHF 76.70
500 ML
CHF 233.00

About This Item

Empirische Formel (Hill-System):
C4H8O
CAS-Nummer:
109-99-9
Molekulargewicht:
72.11
Beilstein:
102391
EG-Nummer:
203-726-8
MDL-Nummer:
MFCD00005356
UNSPSC-Code:
12191501
PubChem Substanz-ID:
329769581
NACRES:
NB.61
bp:
65-67 °C (lit.)

CHF 76.70

Voraussichtliches Versanddatum26. Mai 2025

Bulk-Bestellung anfordern

Produktbezeichnung

Tetrahydrofuran, for ion-selective electrodes, Selectophore™, ≥99.5%

Qualität

for ion-selective electrodes

Qualitätsniveau

200

Dampfdichte

2.5 (vs air)

Dampfdruck

114 mmHg ( 15 °C)
143 mmHg ( 20 °C)

Beschreibung

solvent for preparation of membranes

Produktlinie

Selectophore™

Assay

≥99.5% (GC)
≥99.5%

Form

liquid

Selbstzündungstemp.

610 °F

Enthält

250 ppm BHT as inhibitor

Expl.-Gr.

1.8-11.8 %

Verunreinigungen

≤0.01% water

Brechungsindex

n20/D 1.407 (lit.)

bp

65-67 °C (lit.)

mp (Schmelzpunkt)

−108 °C (lit.)

Löslichkeit

H2O: soluble

Dichte

0.889 g/mL at 25 °C (lit.)

SMILES String

C1CCOC1

InChI

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

InChIKey

WYURNTSHIVDZCO-UHFFFAOYSA-N

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Allgemeine Beschreibung

Tetrahydrofuran (THF), an organic compound which belongs to saturated cyclic ether group. It is mainly used as solvent for PVC and organoalkali compounds. It is also used in lithium batteries.
Visit our Sensor Applications portal to learn more.

Anwendung

THF has been used to realise PVC membrane from electrode, during a study to design, fabricate and electrochemically characterize miniaturised thin- and thick-film Ag/AgCl reference electrodes.[1]

Rechtliche Hinweise

Selectophore is a trademark of Merck KGaA, Darmstadt, Germany

Empfehlung

Produkt-Nr.
Beschreibung
Preisangaben

Signalwort

Danger

Gefahreneinstufungen

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

Zielorgane

Central nervous system, Respiratory system

Zusätzliche Gefahrenhinweise

EUH019

Lagerklassenschlüssel

3 - Flammable liquids

WGK

WGK 1

Flammpunkt (°F)

-6.2 °F - closed cup

Flammpunkt (°C)

-21.2 °C - closed cup

Persönliche Schutzausrüstung

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
BCCL3303
BCCL8631
BCCK1128
BCCH3906
BCCG9362

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Tetrahydrofuran anhydrous, contains 250 ppm BHT as inhibitor, ≥99.9%

Sigma-Aldrich

186562

Tetrahydrofuran

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1.08114

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Calcium-Ionophor IV for ion-selective electrodes, Selectophore™, function tested

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Strategies of miniaturised reference electrodes integrated in a silicon based ?one chip? pH sensor.
Simonis, Anette, et al.
Sensors, 3.9, 330-339 (2003)
Luca Chiari et al.
The Journal of chemical physics, 138(7), 074301-074301 (2013-03-01)
We present total, elastic, and inelastic cross sections for positron and electron scattering from tetrahydrofuran (THF) in the energy range between 1 and 5000 eV. Total cross sections (TCS), positronium formation cross sections, the summed inelastic integral cross sections (ICS)
Eliane M de Oliveira et al.
Physical chemistry chemical physics : PCCP, 15(5), 1682-1689 (2012-12-19)
We report elastic integral, differential and momentum transfer cross sections for low-energy electron scattering by the cellulose components β-D-glucose and cellobiose (β(1 → 4) linked glucose dimer), and the hemicellulose component β-D-xylose. For comparison with the β forms, we also
Tetrahydrofuran-containing macrolides: a fascinating gift from the deep sea.
Adriana Lorente et al.
Chemical reviews, 113(7), 4567-4610 (2013-03-20)
P T Clayton et al.
The Journal of clinical investigation, 79(4), 1031-1038 (1987-04-01)
Urinary bile acids from a 3-mo-old boy with cholestatic jaundice were analyzed by ion exchange chromatography and gas chromatography-mass spectrometry (GC-MS). This suggested the presence of labile sulfated cholenoic acids with an allylic hydroxyl group, a conclusion supported by analysis
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Questions

1–2 of 2 Questions  

  1. 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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  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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