Potassium biphthalate Buffer tablets pH 4.0
pH standard value: 4
Reagent
Code: #53488
Alias
Potassium hydrogen phthalate pH standard substance; Potassium hydrogen phthalate, potassium hydrogen phthalate, 1,2-monopotassium phthalate
CAS Number
877-24-7
blur_circular Chemical Specifications
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Molecular Information
Weight
204.22 g/mol
Formula
C₈H₅KO₄
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Registry Numbers
EC Number
212-889-4
MDL Number
MFCD00013070
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Physical Properties
Melting Point
295-300 °C (dec.)(lit.)
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Storage & Handling
Density
1.006 g/mL at 20 °C
Storage
room temperature
description Product Description
Potassium biphthalate buffer tablets pH 4.0 are widely used in laboratories for calibrating pH meters and ensuring accurate pH measurements. They provide a stable and precise reference point, which is essential for experiments requiring consistent pH conditions. These tablets are particularly useful in analytical chemistry, environmental testing, and quality control processes where maintaining a specific pH is critical. They are also employed in educational settings to teach students about pH measurement and buffer solutions. The convenience of pre-measured tablets simplifies preparation, ensuring reproducibility and reliability in various scientific applications.
format_list_bulleted Product Specification
| Test Parameter | Specification |
|---|---|
| pH (2 g / 250 mL H2O, 25) | 3.98-4.02 |
| Appearance | white powder |
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