MilliporeSigma
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43302

Sigma-Aldrich

Micro particles based on polystyrene

size: 100 nm

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Synonym(s):
Latex beads from PS
MDL number:
MFCD00243243
NACRES:
NA.32

Quality Level

100

form

aqueous suspension

concentration

10% (solids)

particle size

100 nm std dev ≤0.01 μm

density

1.05 g/cm3

storage temp.

2-8°C

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Micro particles based on polystyrene

form

aqueous suspension

form

aqueous suspension

form

aqueous suspension

form

aqueous suspension, particles

concentration

10% (solids)

concentration

10% (solids)

concentration

10% (solids)

concentration

10% (solids)

particle size

100 nm std dev ≤0.01 μm

particle size

500 nm

particle size

1 μm std dev <0.1 μm, coeff var <5%

particle size

25 μm std dev <0.4 μm, coeff var <2%

density

1.05 g/cm3

density

1.05 g/cm3

density

1.05 g/cm3

density

1.05 g/cm3

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

General description

Micro Particles or Latex Beads, commonly known as polystyrene microparticles, are negatively charged colloidal particles. The microparticles are produced through a polymerization reaction of styrene under controlled conditions. The conducive environment of the reaction induces spontaneous coalescent bead formation. Micro Particles or Latex beads are supplied in aqueous solutions composed of polymer particles with water. Polystyrene′s refractive index at 589 nm is 1.5905 and 1.602 at 486 nm.

Application

Micro Particles or Latex Beads is used for a wide variety of applications like:
  • Electron Microscopy.
  • Cell Counter Calibration.
  • Immunodiagnostics, especially for latex agglutination tests, and
  • Phagocytosis Research.

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.

Storage Class Code

10 - 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

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25G
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