Caustic Soda Flakes / Pearls 99%
High-purity 99% membrane-cell Sodium Hydroxide flakes and pearls sourced directly from top Chinese chlor-alkali plants for cotton mercerizing, reactive dyeing, soap manufacturing, and ETP neutralization.
Typical Certificate of Analysis (COA) — Caustic Soda Flakes / Pearls 99%
Every container indented by Hafsa Sourcing is accompanied by a batch-specific factory Certificate of Analysis (COA) and optional SGS / Bureau Veritas Pre-Shipment Inspection report verifying the parameters below:
| Test Parameter | Export Spec Limit | Typical Batch Value | Test Method |
|---|---|---|---|
| Sodium Hydroxide (NaOH) Assay | ≥ 99.0% | 99.3% | GB/T 4348.1 |
| Sodium Carbonate (Na2CO3) | ≤ 0.40% | 0.21% | GB/T 4348.1 |
| Sodium Chloride (NaCl) | ≤ 0.03% | 0.018% | GB/T 4348.2 |
| Ferric Oxide (Fe2O3) | ≤ 0.005% (50 ppm) | 0.002% (20 ppm) | GB/T 4348.3 |
| Appearance | White Dry Flakes / Pearls | Complies | Visual |
Industrial Applications in Bangladesh
Bangladesh Market Context: The #1 highest-volume basic alkali imported into Chattogram Port for Gazipur and Narayanganj knit/woven dyeing mills, paper mills, and Old Dhaka chemical wholesalers.
- Cotton knit and woven fabric scouring, kier boiling, and high-luster mercerizing
- Alkali fixation bath in reactive dyeing and vat/indigo dye reduction
- pH neutralization of acidic wastewater streams in factory Effluent Treatment Plants (ETP)
- Saponification base for soap, detergent, and sodium silicate manufacturing
Import & L/C Indenting Parameters
- Standard Export Packaging
- 25kg 3-layer PP+PE woven bags (with inner liner)
- 20ft FCL Container Payload
- 27.0 MT (Unpalletized) / 24.0 MT (Palletized)
- Chinese Production Hub
- Shandong / Inner Mongolia / Hebei, China
- Bangladesh Customs & Regulatory Note
- Standard Industrial or Commercial IRC; HS Code 2815.11.00 mandatory on B/L & PI.
- Trade Synonyms
- NaOH Flakes • Caustic Soda Pearls • Sodium Hydroxide Solid • Lye
Other Basic Inorganic & Alkalis Sourced from China
Hydrogen Peroxide 50% (Textile & Industrial Grade)
Anthraquinone-process 50% Hydrogen Peroxide with low heavy-metal trace and ≥97% thermal stability for high-whiteness cotton knit/woven bleaching and pulp processing.
Soda Ash Light & Dense 99.2%
Premium Chinese synthetic and natural-trona Sodium Carbonate in Light Grade (reactive dye fixation & detergents) and Dense Grade (float glass, container glass & sodium silicate).
Sodium Sulphate Anhydrous 99% (Glauber's Salt)
Ultra-low hardness (Ca+Mg ≤ 0.10%) vacuum-crystallized Sodium Sulphate Anhydrous from Sichuan and Jiangsu Glauberite mines for streak-free reactive cotton dyeing and detergent powders.