91329

Micro particles based on melamine resin

analytical standard, size: 3 μm

• Sinonimo/i: Melamine-formaldehyde resin, Size standards
• Numero MDL: MFCD00197912
• Codice UNSPSC: 41116107
• NACRES: NA.24

Proprietà

• Grado: analytical standard
• Livello qualitativo: 100
• Stato: aqueous suspension; particles
• Concentrazione: 10% (solids)
• Dimensione particelle: 3 μm std dev <0.1 μm, coeff var <3%
• Formato: neat

Descrizione

Descrizione generale

Melamine resin-based microparticles (size: 3 μm) are a particle size standard, suitable for profiling particle size distribution (PSD) 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 the product.

Applicazioni

Used to validate and monitor equipment particle size.

Caratteristiche e vantaggi

• 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

Risultati analitici

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.

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 10 - Combustible liquids
• Classe di pericolosità dell'acqua (WGK): WGK 3
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable
• Dispositivi di protezione individuale: Eyeshields, Gloves