Disodium Phosphate (DSP)
DSP is used as an emulsifier and acidity adjuster in the food industry, a processing aid in drinking water treatment and fermentation (flocculant and nourishment agent), and a mineral element source in feed processing. Industrial grade serves as a boiler-water softener and fire retardant for textile, wood, and paper.
- Manufacturer since 1952 — batch-level Certificate of Analysis (COA) on every shipment
- Long-term supply contracts with committed monthly allocations, insulated from spot-market swings
- Third-party pre-shipment inspection (SGS / BV) welcomed on request
Quick facts
Standard: GB 1886.329-2021; FCC; Q/WLD09-2021 (food/feed) · HG/T 2965-2009 (industrial)
Appearance: White powder; colorless to white crystal (hydrates)
Packaging: 25 kg, 50 kg, 1000 kg bags, or according to customer's demand
Specification — Food & Feed Grade
| Item | Food Grade | Feed Grade |
|---|---|---|
| Main content, dry basis (Na₂HPO₄), w/% ≥ | 98.0 | 98.0 |
| Loss of dryness (Na₂HPO₄), w/% ≤ | 5.0 | 5.0 |
| Loss of dryness (Na₂HPO₄·2H₂O), w/% | 18.0 – 22.0 | — |
| Loss of dryness (Na₂HPO₄·12H₂O), w/% ≤ | 61.0 | — |
| Water insoluble, w/% ≤ | 0.2 | 0.2 |
| Heavy metals (as Pb), mg/kg ≤ | 10 | — |
| Fluoride (F), mg/kg ≤ | 50.0 | 100 |
| Arsenic (As), mg/kg ≤ | 3.0 | 10 |
| Chromium (Cr), mg/kg ≤ | — | 10 |
| Lead (Pb), mg/kg ≤ | 4.0 | 10 |
Standard executed: GB 1886.329-2021; FCC; Q/WLD09-2021.
Specification — Industrial Grade
| Item | Value |
|---|---|
| Main contents (as Na₂HPO₄·12H₂O), w/% ≥ | 97.0 |
| Sulphate (as SO₄²⁻), w/% ≤ | 0.7 |
| Chloride (as Cl), w/% ≤ | 0.05 |
| Arsenic (As), w/% ≤ | 0.005 |
| Fluoride (as F), w/% ≤ | 0.05 |
| Iron (Fe), w/% ≤ | 0.05 |
| Water insoluble, w/% ≤ | 0.05 |
| pH (10 g/L solution) | 9.0 ± 0.2 |
Standard executed: HG/T 2965-2009.
Customized specification available. Hydrate form and packaging can be produced to your requirement. The batch Certificate of Analysis (COA) prevails for every shipment.
Applications
Dairy & Beverage
Emulsifying salt for processed cheese and evaporated milk; acidity adjuster in beverages.
Water Treatment & Fermentation
Flocculant and nourishment agent in drinking water processing and fermentation.
Feed & Industrial
Mineral element in feed processing; boiler-water softener and fire retardant for textile, wood, and paper.
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