STPP 94% & SHMP 68% (Industrial & Water Softening Phosphates)
Thermal-process Sodium Tripolyphosphate (STPP 94%) and glassy Sodium Hexametaphosphate (SHMP 68%) from Southwest China's phosphate hub for dyebath water softening, detergents, and ceramic deflocculation.
Typical Certificate of Analysis (COA) — STPP 94% & SHMP 68% (Industrial & Water Softening Phosphates)
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 |
|---|---|---|---|
| STPP Assay (Na5P3O10) / Total P2O5 | ≥ 94.0% / ≥ 57.0% | 95.2% / 57.4% | GB/T 9983-2004 |
| SHMP Total P2O5 / Inactive P2O5 | ≥ 68.0% / ≤ 7.5% | 68.3% / 6.8% | HG/T 2519-2017 |
| Water Insoluble Matter | ≤ 0.05% | 0.02% | GB/T 9983-2004 |
| Whiteness | ≥ 90.0% | 93.5% | GB/T 9983-2004 |
Industrial Applications in Bangladesh
Bangladesh Market Context: SHMP 68% ("Calgon") is widely used in Bangladesh textile dyeing houses to soften hard borewell water before adding dyes, while STPP 94% is a staple for detergent and ceramic tile plants.
- SHMP 68%: Dyebath water softening and Ca2+/Mg2+ sequestration in textile pretreatment and dyeing
- STPP 94%: Primary builder and soil-suspending agent in synthetic detergent powders
- Ceramic clay slip deflocculant and viscosity reducer in sanitaryware and tile factories
Import & L/C Indenting Parameters
- Standard Export Packaging
- 25kg PP Woven Bags with Double PE Inner Liner
- 20ft FCL Container Payload
- 25.0 – 27.0 MT (1,000–1,080 × 25kg Bags per 20ft FCL)
- Chinese Production Hub
- Sichuan / Yunnan / Guizhou / Hubei, China
- Bangladesh Customs & Regulatory Note
- STPP uses HS Code 2835.31.00; SHMP (CAS 10124-56-8) uses HS Code 2835.39.00.
- Trade Synonyms
- STPP 94% • SHMP 68% • Calgon • Graham Salt • Pentasodium Triphosphate
Other Organic Acids, Chelates & Phosphates Sourced from China
Glacial Acetic Acid 99.85% (GAA)
Methanol-carbonylation virgin Glacial Acetic Acid 99.85% with ultra-low iron (<1 ppm) and zero heavy-metal contamination for dyehouse pH buffering and alkali neutralization.
Formic Acid 85% & 90%
High-strength 85% and 90% Formic Acid from Shandong's premier methyl-formate hydrolysis plants for Savar leather tanning/pickling and high-efficiency textile dye neutralization.
Oxalic Acid 99.6% (Refined Industrial Grade)
Free-flowing 99.6% Oxalic Acid Dihydrate crystal for denim potassium permanganate (PP) spray neutralization, iron/rust spot removal on fabrics, and leather bleaching.