Alcoholic picric acid 5 % (picral)
Alcoholic picric acid 5% (picral) is a chemical solution mainly used in metallography and scientific laboratories. It is an alcoholic solution of picric acid (C.I.: 10305) (CAS No.: 88-89-1). In metallography, it is used as a microetching agent for pure iron, carbon steels, low-alloy steels, gray cast iron and Sn-coated steels and cast irons. Because of the chemical reactions that take place between the picric acid and the metals, the solution enables the development of structural information in these materials.
Ethanol (C2H5OH) is an organic solvent that acts as a carrier for picric acid in this solution. Picric acid, also known as 2,4,6-trinitrophenol (C6H2(NO2)3OH), is a high-value substance available in various concentrations. The combination of ethanol and picric acid creates a solution that is used in metallography due to its chemical properties and reactions.
Alcoholic picric acid improves the surface quality of the materials under investigation and clearly exposes structural details. Microstructural development occurs within a few seconds to minutes, and the etchant should not dry up, as this poses a potential explosion hazard.
In summary, the main application of alcoholic picric acid 5% (picral) is in the microstructural analysis of metallic materials.
Ethanol (C2H5OH) is an organic solvent that acts as a carrier for picric acid in this solution. Picric acid, also known as 2,4,6-trinitrophenol (C6H2(NO2)3OH), is a high-value substance available in various concentrations. The combination of ethanol and picric acid creates a solution that is used in metallography due to its chemical properties and reactions.
Alcoholic picric acid improves the surface quality of the materials under investigation and clearly exposes structural details. Microstructural development occurs within a few seconds to minutes, and the etchant should not dry up, as this poses a potential explosion hazard.
In summary, the main application of alcoholic picric acid 5% (picral) is in the microstructural analysis of metallic materials.
Article no.: 18943
Microetching agent for ferritic steels.
Important Information
Sales restriction: no private users!
UN-Nummer: 1170
Warning labels:
Lagerung: 15 … 25 °C
Haltbarkeit: 24 Monate
product information
Relevant Incredients:
• Ethyl alcohol
• Picric acid (C.I.: 10305)
Hazard and safety instructions
Signal Word 1: Gefahr |
Signal Word 2: flamme, exclam, , |
Warning labels: |