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Merck
CN

81494

Micro particle size standard based on polystyrene monodisperse

analytical standard, size: 4.0 μm

Synonym(s):

Monodisperse polystyrene latex particles (4 μm), monodisperse polystyrene microbeads (4 μm), monodisperse polystyrene microspheres (4 μm), Size standards

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About This Item

UNSPSC Code:
41116107
NACRES:
NA.24
MDL number:
MFCD00243243

Key Documents

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Product Name

Micro particle size standard based on polystyrene monodisperse, analytical standard, size: 4.0 μm

grade

analytical standard

form

aqueous suspension
particles

crosslinking

0 % cross-linked

concentration

2% (solids)

Quality Level

100

technique(s)

diffraction/scattering: suitable

particle size

4.0 μm std dev <0.1 μm, coeff var <2%

application(s)

cosmetics
environmental
food and beverages
pharmaceutical

format

neat

storage temp.

2-8°C

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Analysis Note

For every lot exact values of particle size and standard deviation are determined with an accuracy of 0.001 μm. The size determination of these particles follows procedures described by National Institute of Standards and Technology (NIST, USA) respectively by the Community Bureau of Reference (BCR), esp.:
  • Transmission electron microscopy (TEM)
  • Scanning electron microscope
  • Light microscopy
  • Coulter™ counter with MDF-system
Calibration of equipment is carried out with NIST-respectively BCR-particle size standards.

Application

Used to validate and monitor the performance of particle sizing equipment. Also used to produce armored bubbles—interfacial composite materials (ICM) formed by embedding with air bubbles.

Features and Benefits

  • suitable for routine instrument calibration checks and corrections
  • available in 5 mL & 10 mL pack sizes as neat samples

General description

Monodisperse polystyrene based micro particles (size: 4.0 μm) are a size standard, designed to identify the particle size distribution (PSD) of test samples.

Legal Information

Coulter is a trademark of Beckman Coulter, Inc.

Storage Class

10 - Combustible liquids

wgk

WGK 3

flash_point_f

410.0 °F

flash_point_c

210 °C

ppe

Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCP2286
BCCP0590
BCCN1805
BCCM8577
BCCM0805

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The effect of double-chain surfactants on armored bubbles: a surfactant-controlled route to colloidosomes
Subramaniam AB, et al.
Physical Chemistry Chemical Physics, 9(48), 6476-6481 (2007)
Mechanics of interfacial composite materials
Subramaniam AB, et al.
Langmuir, 22(24), 10204-10208 (2006)
Microstructure, morphology, and lifetime of armored bubbles exposed to surfactants
Subramaniam AB, et al.
Langmuir, 22(14), 5986-5990 (2006)
Controlled assembly of jammed colloidal shells on fluid droplets
Subramaniam AB, et al.
Nature Materials, 4(7), 553-556 (2005)

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