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Indicating Solution pH 4.2 - 6.3 (Methyl Red)

The indicator solution with methyl red is a precise instrument for determining the pH value in a wide range of applications, especially in areas where a pH range of 4.2 to 6.3 is relevant. This range is relevant in the chemical industry as well as in biological and medical contexts.

Methyl red as a component of the solution is particularly suitable for use in acidic solutions. The unique color change exhibited by methyl red as it transitions from pH 4.2 (red) to pH 6.3 (yellow) allows for rapid and accurate determination of pH.

The chemical properties of methyl red in this indicator solution are based on the molecule's ability to accept or release protons. This proton transfer results in a structural change of the molecule, which causes a change in the absorbing wavelength and thus a change in color.

The solution works on the basis of the color change of methyl red. In acidic environments (pH 4.2), methyl red appears red, while in less acidic environments (pH 6.3) it becomes yellow. This clear and easily recognizable color change makes the indicator solution a reliable and precise tool for a wide range of applications.

Article no.: 13660

pH detection by color change (indicator solution)

  •   Container size and order number Net price Amount
    Indicating Solution pH 4.2 - 6.3 (Methyl Red) - 100 ml
    Order number: 13660.00100
    12,52 €
    Indicating Solution pH 4.2 - 6.3 (Methyl Red) - 250 ml
    Order number: 13660.00250
    14,36 €
    Indicating Solution pH 4.2 - 6.3 (Methyl Red) - 500 ml
    Order number: 13660.00500
    20,87 €
    Indicating Solution pH 4.2 - 6.3 (Methyl Red) - 1.000 ml
    Order number: 13660.01000
    39,12 €

Important Information

UN-Nummer: 1170

Warning labels:

Lagerung: 15 … 25 °C

Haltbarkeit: 24 Monate

safety data sheet

product information

Relevant Ingredients:
• Ethyl alcohol
• Methyl red (C.I.: 13020)

Technical informations


Hazard and safety instructions

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