Magneson according to MANN (dolomite detection)
Magneson according to MANN, a ready-to-use solution for dolomite detection, has its field of application mainly in histology, cytology, materialography and geology. The solution consists of distilled water, sodium hydroxide and magneson. Sodium hydroxide (NaOH) acts as a strong alkali, while magneson, chemically P-nitrophenyl phosphate (PNPP), serves as a pH indicator.
The reactions involve the binding of magneson to magnesium ions, with the magneson taking on a blue coloration. This is evidence for the presence of dolomite (MgCa(CO3)2) or magnesite (MgCO3). A sample containing magnesite will result in a blue coloration. Smithsonite (ZnCO3), on the other hand, shows up uncolored to minimally blue.
The examination begins with pretreatment of the sample by wetting with 10% HCl, followed by drizzling on a few drops of the magnesone solution. A color change to blue within 30 seconds indicates the presence of MgO.
The reactions involve the binding of magneson to magnesium ions, with the magneson taking on a blue coloration. This is evidence for the presence of dolomite (MgCa(CO3)2) or magnesite (MgCO3). A sample containing magnesite will result in a blue coloration. Smithsonite (ZnCO3), on the other hand, shows up uncolored to minimally blue.
The examination begins with pretreatment of the sample by wetting with 10% HCl, followed by drizzling on a few drops of the magnesone solution. A color change to blue within 30 seconds indicates the presence of MgO.
Article no.: 18455
Dolomite detection in carbonates
product information
Relevant Ingredients:
• Sodium hydroxide
• Azo violet
Instructions / Protocol / Recommendations
Verwendung:
Nachweis von Dolomit in Gestein