Phosphoric Acid Food Grade 85% (E338 / FCC) CAS 7664-38-2 is non-volatile inorganic corrosive acid, available in industrial grade and food grade E338 (85 %). Widely used for food acidity regulation, metal treatment, water treatment, fertilizer and chemical synthesis. TNJ Chemical is the key manufacturer and exporter since from 2001. If you want to buy Phosphoric acid at competitive price from Chinese manufacturer, please contact sales@tnjchem.com
Product Name: Phosphoric Acid (Orthophosphoric acid)
CAS No: 7664-38-2
EC No: 231-633-2
UN No: 1805
Molecular Formula: H₃PO₄
Molecular Weight: 97.99 g/mol
1. Chemical-Physical Properties
Appearance Colorless, odorless syrupy transparent liquid
Density(25℃, g/cm³) 1.68‑1.70 (85 %)
Boiling point 213 ℃
Solubility Miscible with water and ethanol
Hazard Class 8 (Corrosive substance)
2. Multiple-Grades Specification
| Test Item | Industrial Grade 85% | Food Grade 85% (E338 / FCC) | Food Grade 75% |
|---|---|---|---|
| Assay (H₃PO₄), % ≥ | 85.0 | 85.0 | 75.0 |
| Color (APHA) ≤ | 30 | 20 | 20 |
| Chloride (Cl), ppm ≤ | 5 | 5 | 5 |
| Sulfate (SO₄), ppm ≤ | 50 | 30 | 30 |
| Iron (Fe), ppm ≤ | 20 | 10 | 10 |
| Arsenic (As), ppm ≤ | 5 | 1 | 1 |
| Heavy metals (Pb), ppm ≤ | — | 5 | 5 |
| Fluoride (F), ppm ≤ | — | 10 | 10 |
| Insoluble matter, % ≤ | 0.05 | 0.02 | 0.02 |
3. Application
Food grade(E338): Acidity regulator for beverage, food processing
Industrial grade: Metal surface phosphating & rust removal, water treatment, electroplating, chemical synthesis, fertilizer raw material
Other: Cleaning agent, pharmaceutical intermediate, pH adjuster for various industrial formulations
4. Packing, Transportation & Storage
Packing: 330kg plastic drum; 1000L IBC tote tank; ISO tank bulk
Storage: Sealed, cool & ventilated warehouse. Keep away from alkalis, metals. Corrosive, avoid skin & eye contact.
Shelf-life: 12 months under original sealed condition.
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