Only for local formulators that already hold registration and run their own lines. We improve absorption, disintegration, sedimentation and anti-caking in WP/WG/SC formulations.
On CS-WG180, an oil absorption of 200–250 g/100g with poured bulk density 100–160 g/L (ISO 60) supports active loading and disintegration in WP/WG carriers and SC anti-caking / rheology control.
Typical benchmarks: Evonik precipitated silica for agrochemical carriers, Quechen Silicon precipitated-silica carrier grades, Madhu Silica precipitated silica carrier grades.
We don't replicate brand premiums. We enter through niche applications, second-source / backup supply and multiple grades, and differentiate with profile screening, problem diagnosis and sample conversion.
Censil Silica CS-series precipitated silica for this track is offered as CS-WG180 WG Carrier. Typical physical properties are shown below with the applicable test method for each parameter.
| Property | Unit | CS-WG180 WG Carrier | Test method |
|---|---|---|---|
| BET specific surface area | m²/g | 160 – 210 | ISO 9277 / DIN 66131 |
| Oil absorption (DOP) | g/100g | 200 – 250 | ISO 4652 / DIN 53617 |
| Particle size D50 | µm | 12 – 22 | ISO 13320 (laser diffraction) |
| Sieve residue (45 µm) | % | ≤ 0.15 | ISO 2591-1 |
| Bulk density (poured) | g/L | 100 – 160 | ISO 60 |
| Tapped density | g/L | 150 – 230 | ISO 697 |
| pH (5% aq. suspension) | — | 6.0 – 7.5 | ISO 6588 |
| Loss on drying (105 °C, 2 h) | % | 4.0 – 7.0 | ISO 787-2 |
| SiO₂ content (dry basis) | % | ≥ 96.0 | Gravimetric / XRF |
| Loss on ignition (1000 °C) | % | ≤ 7.0 | ISO 6798 |
Typical values. Typical values representative of the grade family. Values are for guidance; a grade-specific specification sheet is available on request.
| Test dimension | What to watch | What it tells the customer |
|---|---|---|
| Absorption / bulk density | Whether the target active load is supported | Judges formulation feasibility |
| WG disintegration | Whether target disintegration time and dispersion are met | Judges end-use experience |
| SC stability | Whether sedimentation, caking and bottle residue are reduced | Judges shelf stability |
| Dust control | Whether production and packing improve | Judges plant workability |