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
76847
Phosphate buffer solution
BioUltra, >0.044 M Na2HPO4, >0.022 M NaH2PO4
Synonym(s):
Phosphoric acid buffer solution
About This Item
Recommended Products
product line
BioUltra
Quality Level
form
liquid
concentration
>0.022 M NaH2PO4
>0.044 M Na2HPO4
impurities
Insoluble matter, passes filter test
metal traces
pH
7.2±0.2
density
1.0 g/mL at 20 °C
absorption
0.02 at 260 nm
0.02 at 280 nm
Application
- Interfacial Engineering of MoS(2)@CoS(2) Heterostructure Electrocatalysts for Effective pH-Universal Hydrogen Evolution Reaction: Describes the application of phosphate buffer in creating stable electrochemical environments for the development of MoS(2)@CoS(2) heterostructure electrocatalysts, contributing to advancements in sustainable energy technologies (Gu YH et al., 2024).
- Cryo-storage of porcine hides at the industrial scale for tissue engineering and regenerative medicine application: Investigates the use of phosphate buffer solutions to maintain pH stability during the cryopreservation of biological tissues, which is crucial for their viability in regenerative medicine and tissue engineering (Wang H et al., 2024).
- Laser-printed paper ELISA and hydroxyapatite immobilization for colorimetric congenital anomalies screening in saliva: Highlights the application of phosphate buffer solutions in developing novel diagnostic platforms using laser-printed paper ELISA techniques, which could revolutionize prenatal screening practices by improving the accessibility and accuracy of testing for congenital anomalies (Moulahoum H et al., 2024).
Storage Class Code
12 - Non Combustible Liquids
WGK
nwg
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
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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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