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Absolute Mag™ COOH Silica Magnetic Particles, 250 nm(SMP-NM04)


Absolute Mag™ COOH Silica Magnetic Particles, 250 nm (#SMP-NM04) are prepared according to a modified Stoeber process by hydrolysis of orthosilicates and related compounds as cluster-typed and nonporous particles.

Polydispersity Index
< 0.2
Particle Size
250 nm
Functional Group
10 mg/mL
Storage Buffer
Suspension in water.
Unit Size
10 mL
Number of Particles
4.9E+11 particles/mL
Surface Group Density
2 µmol/g
2.5 g/ccm
43 Am2/kg iron (H = 80 kA/m)
Saturation Magnetization
>63 Am2/kg iron (H> 800 kA/m)
Coercive Field Hc
0.469 kA/m
Stable in aqueous buffers pH> 4. Not stable in organic solvents, acidic solutions pH < 4.
Storage at 2 - 8°C for 3 months.

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