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B4770

Sigma-Aldrich

Buffer, reference standard

pH 7.00±0.01 (25 °C)

Synonym(s):

pH calibration solution at 25 °C pH 7.00±0.01

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About This Item

MDL number:
UNSPSC Code:
12161700
NACRES:
NA.25

form

liquid

Quality Level

color

color-coded yellow

pH

7.00±0.01 (25 °C)

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Application


  • Buffering systems in polymer technology: The development of in-situ forming implants and polymer systems often relies on buffer solutions to ensure pH stability, which is vital for the controlled release and stability of pharmaceutical agents (Ramos et al., 2024).

  • Advanced buffering systems for protein stability studies: In protein stability and folding studies, buffer solutions provide the necessary pH-controlled environment that is critical for maintaining protein integrity and functionality (Khaing et al., 2024).


Packaging

500 mL size packaged in polyethylene bottle; 1 gal size in convenient shelf-top dispenser with spigot.

Analysis Note

Standardized against N.I.S.T. standard reference materials.

Storage Class

12 - Non Combustible Liquids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Protocols

Enzymatic Assay of Carbonic Anhydrase for Wilbur-Anderson Units (EC 4.2.1.1)

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