Potassium biphthalate Buffer tablets pH 4.0

pH standard value: 4

Reagent Code: #53488
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Alias Potassium hydrogen phthalate pH standard substance; Potassium hydrogen phthalate, potassium hydrogen phthalate, 1,2-monopotassium phthalate
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CAS Number 877-24-7

blur_circular Chemical Specifications

scatter_plot Molecular Information
Weight 204.22 g/mol
Formula C₈H₅KO₄
badge Registry Numbers
EC Number 212-889-4
MDL Number MFCD00013070
thermostat Physical Properties
Melting Point 295-300 °C (dec.)(lit.)
inventory_2 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

shopping_cart Available Sizes & Pricing

Size Availability Unit Price Quantity
inventory 2g
10-20 days ฿490.00

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