Phosphoric Acid
Phosphoric Acid 85% (CAS 7664-38-2, E338) supplied wholesale by Zyntex in food and technical grades. For beverage acidulation, phosphate salt production, metal treatment and industrial cleaners. CoA and SDS with every lot.
Description
Phosphoric Acid Product Overview
Phosphoric acid (H3PO4) is usually supplied as an 85% solution: a clear, colorless, syrupy liquid with no odor. It is a medium-strength acid and less aggressive than sulfuric or hydrochloric acid, which makes it easier to handle in many processes. In food, it carries the E number E338.
Food and beverage producers use it to give cola drinks their sharp taste and to adjust acidity in other foods. Chemical companies react it with bases to make phosphate salts such as Disodium Phosphate Food Grade and Sodium Tripolyphosphate. In metal finishing, it removes rust and forms phosphate conversion coatings that improve paint adhesion.
It also appears in acidic cleaners and descalers, in water treatment and as a catalyst in organic reactions. For a related reducing phosphorus acid used mainly in agriculture and stabilizers, see Phosphorous Acid.
Key Applications of Phosphoric Acid
Main application areas:
🥤 Food and Beverages
Acidulant in cola drinks and other foods (E338).
🧪 Phosphate Salts
Raw material for sodium, potassium and calcium phosphates.
🔧 Metal Treatment
Rust removal and phosphate conversion coatings.
🧼 Cleaners
Acidic cleaners and descalers for industrial use.
Phosphoric Acid Technical Specifications
| Parameter | Standard Value |
|---|---|
| Product Name | Phosphoric Acid |
| CAS Number | 7664-38-2 |
| EC Number | 231-633-2 |
| E Number | E338 |
| Molecular Formula / Weight | H3PO4 / 98.00 g/mol |
| Assay (Purity) | ≥ 85.0% |
| Appearance | Clear, colorless, syrupy liquid |
| Documents | CoA and SDS with every lot |
⚠️ Safety & Handling: Causes severe skin burns and eye damage. Wear acid-resistant gloves, goggles or a face shield and protective clothing. Always add acid to water, never water to acid. Store in tightly closed, acid-resistant containers, away from bases and metals. Always consult the Safety Data Sheet (SDS) for full classification and handling instructions.
Frequently Asked Questions
Do you supply a food grade?
Yes, food-grade 85% material meeting E338 specifications is available, as well as technical grade. Please state the grade when requesting a quote.
What is the difference between phosphoric acid and phosphorous acid?
Phosphoric acid (H3PO4) is the fully oxidized acid used in food and phosphate salts. Phosphorous acid (H3PO3) is a reducing acid used mainly for phosphite fertilizers and stabilizers.
How can I get a price and documents?
Prices depend on quantity, packaging and destination. Contact us with your required volume to receive a quotation together with the CoA and SDS.
