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Sodium citrate buffer pH 7.0

Sodium citrate buffer pH 7.0 is an aqueous solution consisting mainly of di-sodium hydrogen phosphate (Na2HPO4) and a small amount of citric acid. The chemical reaction between these two substances leads to the formation of a buffer system that is able to keep the pH of the solution stable. This is particularly important in medical diagnostics and scientific laboratories, where pH-stable environments are often critical to the success of experiments and analyses.

In histology, sodium citrate buffer is commonly used for antigen unmasking in immunohistochemistry. Heating tissue sections in this buffer modifies the protein structure, allowing better binding of antibodies to their target antigens. This improves the quality of the staining and increases the sensitivity of the method.

Based on the given components, the molarity is 1.0 M for di-sodium hydrogen phosphate and 0.02 M for citric acid. The osmolarity is about 2.02 Osm/L and the buffer capacity is in the range of 0.02 M.

Article no.: 18685

Use as laboratory reagent

  •   Container size and order number Net price Amount
    Sodium citrate buffer pH 7.0 - 100 ml
    Order number: 18685.00100
    15,25 €
    Sodium citrate buffer pH 7.0 - 250 ml
    Order number: 18685.00250
    18,86 €
    Sodium citrate buffer pH 7.0 - 500 ml
    Order number: 18685.00500
    31,60 €
    Sodium citrate buffer pH 7.0 - 1.000 ml
    Order number: 18685.01000
    41,74 €
    Sodium citrate buffer pH 7.0 - 2.500 ml
    Order number: 18685.02500
    83,55 €

Important Information

UN-Nummer: 0000

Warning labels:

Lagerung: 15 … 25 °C

Haltbarkeit: 12 Monate

safety data sheet

product information

Relevant Incredients:
• Dinatriumhydrogenorthophosphat
• Citric Acid 20 %

Technical informations

specifications

Hazard and safety instructions

Signal Word 1: Achtung
Signal Word 2: exclam, , ,
Warning labels: