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.pdf
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
Product Name
Tetrahydrofuran, Selectophore™, ≥99.5%
Quality Segment
vapor density
2.5 (vs air)
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
refractive index
n20/D 1.407 (lit.)
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
Application
Legal Information
1 of 1
This Item | |||
|---|---|---|---|
| description Selectophore™, ≥99.5% | description contains 200-400 ppm BHT as inhibitor, ACS reagent, ≥99.0% | description reagent grade, ≥99.0%, contains 250 ppm BHT as inhibitor | description anhydrous, ≥99.9%, inhibitor-free |
| assay ≥99.5% (GC) | assay ≥99.0% | assay ≥99.0% | assay ≥99.9% |
| Quality Level 200 | Quality Level 200 | Quality Level - | Quality Level 200 |
| solubility H2O: soluble | solubility water: soluble | solubility - | solubility H2O: soluble |
| form liquid | form liquid | form liquid | form liquid |
| bp 65-67 °C (lit.) | bp 65-67 °C (lit.) | bp 65-67 °C (lit.) | bp 65-67 °C (lit.) |
| 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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signalword
Danger
target_organs
Central nervous system, Respiratory system
supp_hazards
Storage Class
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
Hazard Classifications
Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - STOT SE 3
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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