96062

Micro particles based on melamine resin

analytical standard, size: 10 μm

• Synonym(s): Melamine resin microspheres (size: 10 μm), Melamine-formaldehyde resin, Size standards
• UNSPSC Code: 41116107
• NACRES: NA.24
• MDL number: MFCD00197912

Properties

• grade: analytical standard
• Quality Segment: 100
• form: aqueous suspension, particles
• concentration: 10% (solids)
• technique(s): diffraction/scattering: suitable
• particle size: 10 μm std dev <0.2 μm, coeff var <2%
• application(s): cosmetics; environmental; food and beverages; pharmaceutical
• format: neat

Description

General description

Melamine resin-based microparticles (size: 10 μm) are a size standard, ideal to determine the particle size distribution (PSD) profile of test samples.
The product contains hydrophilic surfaces with high degree of cross linking and high pressure resistance. Lyophilization and resuspension in aqueous media does not damage them (powders are available on request).

Application

Used to calibrate and monitor particle counting and sizing equipment.

Features and Benefits

• suitable for routine instrument calibration checks and corrections
• extremely high stability in organic solvents
• no swelling or shrinking upon contact with organic solvents
• aqueous suspensions are stable to repeated freeze-thaw cycles
• available in 10 mL pack size as a neat sample

Analysis Note

For every lot, exact values of particle size and standard deviation are determined with an accuracy of 0.01 μm using a Coulter Multisizer.
Density: 1.51 g/cm³
Heat resistance <300 °C
Chemical resistance: acids, bases, organic solvents
Monodisperse melamin resin particles are characterized by high uniformity and narrow size distribution. They carry functional methylol groups, which can be used for covalent coupling of biological active compounds.

Safety Information

• Storage Class: 10 - Combustible liquids
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves