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Merck

87369

Tetrahydrofuran

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

Synonym(s):

THF, Butylene oxide, Oxolane, Tetramethylene oxide

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About This Item

Empirical Formula (Hill Notation):
C4H8O
CAS Number:
109-99-9
Molecular Weight:
72.11
NACRES:
NB.61
PubChem Substance ID:
329769581
UNSPSC Code:
12191501
EC Number:
203-726-8
MDL number:
MFCD00005356
Beilstein/REAXYS Number:
102391
Assay:
≥99.5% (GC), ≥99.5%
Vapor pressure:
114 mmHg ( 15 °C), 143 mmHg ( 20 °C)

Key Documents

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Product Name

Tetrahydrofuran, Selectophore™, ≥99.5%

Quality Level

200

vapor pressure

114 mmHg ( 15 °C), 143 mmHg ( 20 °C)

description

for ion-selective electrodes, solvent for preparation of membranes

product line

Selectophore™

assay

≥99.5% (GC), ≥99.5%

form

liquid

autoignition temp.

610 °F

contains

250 ppm BHT as inhibitor

expl. lim.

1.8-11.8 %

impurities

≤0.01% water

mp

−108 °C (lit.)

solubility

H2O: soluble

density

0.889 g/mL at 25 °C (lit.)

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General description

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.
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Application

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.

Legal Information

Selectophore is a 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

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Class I Designated Chemical Substances

prtr

Group 4: Flammable liquids + Type 1 petroleums + Hazardous rank II + Water soluble liquid

fsl

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

87369-VAR: + 87369-BULK: + 87369-500ML:4548173182155 + 87369-100ML:4548173182131 + 87369-10ML:4548173182148

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN6883
BCCN3738
BCCL3303
BCCL8631
BCCK1128

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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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