FC-5.1-E
Hand-Wash Powder — Economical Tier
Ingredients
| Material | % w/w | Function |
|---|---|---|
| LABSA (96% acid) | 8.5 | Primary surfactant (neutralized in situ) |
| Soda ash (light) | 38.5 | Builder, neutralizes LABSA |
| Sodium sulfate (anhydrous) | 45.0 | Filler, density control |
| CMC | 0.8 | Anti-redeposition |
| Sodium silicate (ratio 2.0) | 4.0 | Binder, corrosion inhibitor |
| CBS-X | 0.05 | Whiteness |
| Perfume (neat) | 0.15 | Fragrance |
| Moisture | 3.0 | Residual |
| Total | 100.0 |
Formulation Notes
[Attributes table]
Raw Materials
Active matter: 8.2% ± 0.5%. Addition Order (Dry-Mix): Pre-blend sodium sulfate + soda ash (10%) in ribbon blender (3 min, 25 rpm). Pre-neutralize LABSA with remaining soda ash in vented vessel (5 min, 45–55 °C). Add to blender; mix 5 min. Add CMC, silicate, brightener (3 min). Spray perfume (2 min). Screen 12-mesh; pack at < 60% RH.
Safety Notes: LABSA is corrosive (pH 1.5–2.5); neutralization generates CO₂ — vented vessel required.
Expected Problems & Solutions: Caking: reduce moisture to < 3.5%. Low foam: add 2% AOS for CaCO₃ > 200 ppm.
QC Tests: Active matter (ASTM D3049, 7.7–8.7%); bulk density (ISO 697, 550–750 g/L); pH 1% (10.0–11.0); moisture (≤ 4.0%).
Cost Notes: ~USD 0.28–0.35/kg (2024, FOB Asia).