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Indicating Solution pH 5.2 - 6.8 (Bromcresol Purpur)

The indicator solution with bromocresol purple in ethanol is a useful tool for determining pH in the range of 5.2 to 6.8. In medical diagnostics and life sciences, this solution is widely used to check the acidity in liquids, including biological samples such as serum or urine.

Bromocresol purple, dissolved in ethanol, is particularly well suited for applications where the use of water-based indicators is unsuitable, such as due to the presence of hydrophobic substances or when rapid evaporation is desired.

Bromocresol purple is a pH indicator that changes color as a function of pH. In acidic environments (pH < 5.2) it takes on a yellow color, and at pH values above 6.8 it appears purple. In the range in between (pH 5.2 - 6.8), it shows a green coloration.

The way bromocresol purple works is based on its ability to absorb or release protons, depending on the surrounding acid-base conditions. This results in the visible color change that allows for quick and easy determination of pH. Overall, the bromocresol purple indicator solution is an indispensable tool in numerous scientific and diagnostic applications.

Article no.: 13799

pH detection by color change (indicator solution)

  •   Container size and order number Net price Amount
    Indicating Solution pH 5.2 - 6.8 (Bromcresol Purpur) - 100 ml
    Order number: 13799.00100
    16,48 €
    Indicating Solution pH 5.2 - 6.8 (Bromcresol Purpur) - 250 ml
    Order number: 13799.00250
    25,98 €
    Indicating Solution pH 5.2 - 6.8 (Bromcresol Purpur) - 500 ml
    Order number: 13799.00500
    37,18 €
    Indicating Solution pH 5.2 - 6.8 (Bromcresol Purpur) - 1.000 ml
    Order number: 13799.01000
    70,19 €
    Indicating Solution pH 5.2 - 6.8 (Bromcresol Purpur) - 2.500 ml
    Order number: 13799.02500
    149,33 €

Important Information

UN-Nummer: 1170

Warning labels:

Lagerung: 15 … 25 °C

Haltbarkeit: 12 Monate

safety data sheet

product information

Relevant Ingredients:
• Ethyl alcohol
• bromocresol purple

Technical informations


Hazard and safety instructions

Signal Word 1: Gefahr
Signal Word 2: flamme, exclam, ,
Warning labels: