Product Description
Food Grade Phosphoric Acid is a high purity inorganic acid maleic-anhydride.html">manufactured via sophisticated refining technology, fully compliant with stringent global food safety specifications and relevant food additive regulations.
This product presents as a transparent, odorless and viscous liquid, possessing a slight sour taste. Serving as an indispensable food additive, it boasts multiple practical properties including acidity adjustment, taste optimization and antiseptic preservation. It gains extensive application across diverse food and beverage manufacturing fields.
Besides daily food and drink production, it acts as fundamental raw material for synthesizing various food-grade phosphate derivatives. Its reliable performance effectively maintains stable physical properties, guarantees edible safety and sustains superior quality of diversified finished food products.
Physicochemical Properties
| Parameter | Specification |
| Melting Point | 21 °C (lit.) |
| Boiling Point | 158 °C (lit.) |
| Density | 1.685 g/mL at 25 °C (lit.) |
| Refractive Index | n₂₀/D 1.433 (lit.) |
| Purity (as H₃PO₄) | ≥85.0% |
| Color | ≤10 APHA (Colorless) |
| Odor | Odorless |
| pH Value | ~0.5 (1% Aqueous Solution) |
| Solubility | Miscible with water and ethanol |
| Stability | Stable under normal storage conditions |
| InChIKey | NBIIXXVUZAFLBC-UHFFFAOYSA-N |
| CAS Database Reference | 7664-38-2 |
Food Safety & Compliance
| Item | Details |
| Food Additive Code | E338 |
| Compliance Standards | FCC (Food Chemicals Codex), GB 25563-2010 (Chinese National Standard), USP |
| Heavy Metals (Max) | Pb ≤ 2 mg/kg; As ≤ 1 mg/kg; Cu ≤ 5 mg/kg |
| Fluoride (Max) | ≤10 mg/kg |
| Loss on Drying (Max)** | ≤1.0% |
| Toxicity | GRAS (Generally Recognized as Safe) by FDA (21 CFR §182.1073) |
Main Applications in Food & Beverage
Beverage Industry
Serves as the major acidity regulator for cola drinks, carbonated soft drinks and fruit juices. It effectively balances pH value of beverage products, optimates taste profile and refreshes the overall flavor sensation.
Dairy Processing Field
Applied in cheese production to adjust acidity and assist material coagulation. It helps refine internal texture of finished dairy goods, improve edible taste and extend product shelf stability.
Bakery and Confectionery Sector
Functions as acidic leavening component inside baking powder to support pastry rising. It also works as flavor conditioning agent to enrich taste layers of various candies and sweet treats.
Food Preservation Application
Restrains reproduction of harmful microorganisms in pickled products, fruit jams and seasoning sauces, slowing down food deterioration and preserving original taste and appearance.
Food Additive Production
Acts as essential raw material to synthesize food-grade phosphate compounds including sodium phosphate and calcium phosphate. These derived products are widely adopted as emulsifiers, stabilizers and nutritional fortifiers in diversified food formulas.
Storage & Handling
Storage Requirements
Store the substance in cool, dry and fully ventilated premises. Keep containers firmly sealed all the time to avert moisture ingress and external contamination. Keep away from heat sources, open flames and incompatible chemical substances during storage.
Storage Temperature
The ideal storage temperature range is controlled between 15 °C and 30 °C. Direct sunlight exposure and high-temperature environment are strictly prohibited.
Operation Precautions
Wear protective gloves, safety goggles and protective work clothes throughout operation to prevent direct contact with skin, eyes and respiratory tract. Once accidental contact occurs, flush the affected part thoroughly with abundant clean water right away. Maintain good ventilation at the working site.
Packaging Standard
Adopt food-grade plastic drums or IBC tanks for packaging. Ensure packaging integrity and tight sealing. Do not store or transport together with incompatible chemical materials.
Delivery Information
Inventory Orders: 2–3 working days
Custom Orders: 7–10 working days
