Buffer Solution, pH 4.00, Coded Pink

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Component CAS-No Weight %
Water 7732-18-5 98.93
1,2-Benzenedicarboxylic acid, monopotassium salt 877-24-7 1.0
Formaldehyde 50-00-0 0.05
Methyl alcohol 67-56-1 0.02

A buffer solution has the capability to resist change in its pH upon the addition of acid or base in a small quantity. It possesses a working range of pH values and capacity that dictates its stability before any change and the amount by which it will change. It usually consists of a weak conjugate acid-base pair. This pair might contain a weak acid and its conjugate base, or a weak base and its conjugate acid. The choice of the pair is simply dependent upon the desired pH when preparing the buffer solution. Lab Alley’s Buffer Solution, pH 4.00, Coded Pink is a combination of 1,2-Benzenedicarboxylic acid, monopotassium salt (1.0 wt.%), Formaldehyde(0.05 wt.%), Methyl alcohol (0.02 wt.%), and purified Water. It appears as a red-tinted opaque liquid having good solubility in water at ambient conditions. In the United States of America (USA), Lab Alley is selling its high-quality Buffer Solution, pH 4.00, Coded Pink online at laballey.com. Due to its high purity, this Lab Alley product is highly recommended for labs and commercial applications.

Common Uses
  • Reagent
  • Calibration of pH meters
  • Titrimetric analysis
Safety and Handling

Please contact us to request a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for Buffer pH4 (coded Pink).

Specifications and SDS

Download data sheets .

Download Safety Data Sheet (SDS)