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
339261
Hydrofluoric acid
48 wt. % in H2O, ≥99.99% trace metals basis
Synonym(s):
HF
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About This Item
Recommended Products
vapor density
1.27 (vs air)
1.27 (vs air)
Quality Level
vapor pressure
25 mmHg ( 20 °C)
assay
≥99.99% trace metals basis
form
liquid
concentration
48 wt. % in H2O
density
1.15 g/mL at 25 °C (lit.)
SMILES string
[H+].[F-]
InChI
1S/FH/h1H
InChI key
KRHYYFGTRYWZRS-UHFFFAOYSA-N
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General description
Application
- To compose the electrolyte for the synthesis of TiO2 nanotube arrays.
- As etchant for the glass fibers.
- As capping reagent for the synthesis of anatase TiO2 nanocrystals/nanosheets.
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Eye Dam. 1 - Skin Corr. 1A
Storage Class
6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk_germany
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
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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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