Merck
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95523

Supelco

Micro particles based on melamine resin

analytical standard, size: 8 μm

Synonym(s):
Melamine resin microspheres, Melamine-formaldehyde resin, Size standards
MDL number:
NACRES:
NA.24

grade

analytical standard

Quality Level

form

aqueous suspension
particles

concentration

10% (solids)

particle size

8 μm std dev <0.15 μm, coeff var <2%

format

neat

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General description

Melamine resin-based microparticles (size: 8 μm) are a size standard, ideal for determining 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 the product (powders are available on request).

Application

Used for equipment particle size calibration.
Also used to identify melamine resin microparticles in seawater samples.

Features and Benefits

  • suitable for routine instrument calibration checks and corrections
  • stable to repeated freeze-thaw cycles
  • available in 5 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.

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

More Documents

SDS

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