Polystyrene microparticles are negatively charge-stabilized colloidal particles. These microparticles are produced by polymerization of styrene under conditions that induce spontaneous coalescent bead formation. Polymerization is terminated when two chains react to form a sulfate-terminated polymer chain. Amine-modified beads will have a positive charge under slightly acidic conditions.
75911
Micro particles based on polystyrene
size: 430 μm
Synonym(s):
Latex beads from PS
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About This Item
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Quality Segment
form
aqueous suspension
IVD
for in vitro diagnostic use
concentration
10% (solids)
particle size
430 μm std dev <10 μm
density
1.05 g/cm3
storage temp.
2-8°C
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.
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This Item | |||
|---|---|---|---|
| concentration 10% (solids) | concentration 10% (solids) | concentration 10% (solids) | concentration 10% (solids) |
| particle size 430 μm std dev <10 μm | particle size 250 μm std dev <6.5 μm | particle size 600 nm std dev ≤0.03 μm | particle size 10 μm std dev <0.2 μm, coeff var <2% |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| form aqueous suspension | form aqueous suspension | form aqueous suspension | form aqueous suspension |
| IVD for in vitro diagnostic use | IVD - | IVD - | IVD - |
| density 1.05 g/cm3 | density 1.05 g/cm3 | density 1.05 g/cm3 | density 1.05 g/cm3 |
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Storage Class
10 - Combustible liquids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 75911-5ML | 04061838244376 |
| 75911-10ML | 04061838244369 |
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Hi, are these particles positively or negatively charged and with which functional group? Preferably, I would also like to know with which functional group they are charged/stabilized. I am looking for positive particles!
1 answer-
Helpful?
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Hello, Please tell us in what solvent are suspended the microparticles based on polystyrene (product number 75911).
1 answer-
This product is suspended in water.
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