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Phosphoric Acid
Phosphoric acid (H3PO4) is a strong mineral acid: colourless, odourless and highly soluble in water. It is triprotic, releasing three protons in sequence, which makes it an effective buffer across a wide pH range rather than only a source of acidity. Food grade is purified to remove the heavy metals and fluoride present in the technical grade made from phosphate rock.
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Commercial Terms
- Minimum order quantity
- 500 kg
- Lead time
- 10-12 days
- HS code
- 280920
- Country of origin
- China
- Packaging
- 35 kg HDPE jerrycans, 330 kg HDPE drums or 1,650 kg IBC; approx. 25 MT per 20' FCL (weight-limited); dangerous goods
- Storage conditions
- Store in a cool, dry, well-ventilated place in the original sealed container, away from oxidising agents.
- Shelf life
- 24 months
Quantities, Incoterm and destination port are confirmed on quotation. Request a quote for a firm price.
Specification
Physical Properties
- Physical Form
- Liquid
- Appearance / Color
- Clear, colourless viscous liquid
- Solubility
- Water Soluble
- Odor
- Pungent
Chemical / Quality
- Grade
- Food Grade
- Purity / Assay
- 85% min food grade
- CAS Number
- 7664-38-2
Compliance & Handling
- GMO Status
- Not Applicable
- Allergen Status
- Allergen-Free
- Storage
- Cool & Dry
- Shelf Life
- 24 months
Application / Intended Use
Phosphoric acid is used for acidification and as a phosphate source. Cola-type beverages use food-grade material for their characteristic tang at around 0.05-0.1%; metal finishers use it for rust conversion and phosphate coating before painting; fertiliser plants use it as the feedstock for phosphate salts. It is corrosive and ships as regulated cargo.
Specification Parameters
| Item | Standard / Limit | Unit | Test Method |
|---|---|---|---|
| Physical & Chemical | |||
| Appearance | Clear, colourless syrupy liquid | Visual | |
| Assay (H3PO4) | ≥ 85.0 | % | GB 1886.15 |
| Fluoride | ≤ 10 | mg/kg | FCC |
| Chloride | ≤ 5 | mg/kg | GB 1886.15 |
| Heavy Metals | |||
| Lead (Pb) | ≤ 4 | mg/kg | GB 5009.12 |
| Arsenic (As) | ≤ 3 | mg/kg | GB 5009.11 |
| Other | |||
| Transport classification | UN 1805, Class 8, Packing Group III | IMDG / ADR | |
Applications by Industry
In the Dietary Supplements industry, Phosphoric Acid is valued as a organic acid that helps formulate high-purity supplements and nutraceuticals. It integrates cleanly into capsules, tablets, powders and functional blends with reliable assay and full traceability. Rawplex supplies it with full COA/TDS documentation, consistent quality and worldwide export support.
Frequently asked questions
What is Phosphoric Acid?
Phosphoric acid (H3PO4) is a strong mineral acid: colourless, odourless and highly soluble in water. It is triprotic, releasing three protons in sequence, which makes it an effective buffer across a wide pH range rather than only a source of acidity. Food grade is purified to remove the heavy metals and fluoride present in the technical grade made from phosphate rock.
What is Phosphoric Acid used for?
Phosphoric acid is used for acidification and as a phosphate source. Cola-type beverages use food-grade material for their characteristic tang at around 0.05-0.1%; metal finishers use it for rust conversion and phosphate coating before painting; fertiliser plants use it as the feedstock for phosphate salts. It is corrosive and ships as regulated cargo.
What is the CAS number for Phosphoric Acid?
The CAS number is 7664-38-2.
What is the HS code for Phosphoric Acid?
It is classified under HS code 280920. Confirm the full tariff line with your customs broker, as the last digits vary by country of import.
What is the minimum order quantity for Phosphoric Acid?
The minimum order quantity is 500 kg. Smaller trial quantities can be arranged on request.
What is the lead time for Phosphoric Acid?
Typical lead time is 10-12 days from order confirmation, subject to stock and destination.
How is Phosphoric Acid packaged?
35 kg HDPE jerrycans, 330 kg HDPE drums or 1,650 kg IBC; approx. 25 MT per 20' FCL (weight-limited); dangerous goods
What purity is Phosphoric Acid supplied at?
Standard specification is 85% min food grade. A Certificate of Analysis stating the actual batch values is issued with every shipment.
How should Phosphoric Acid be stored, and what is its shelf life?
Store cool_dry. Shelf life is 24 months in unopened original packaging.
Where is Phosphoric Acid sourced from?
It is sourced from China. Rawplex exports worldwide by sea or air with full documentation.
What certifications apply to Phosphoric Acid?
ISO 9001, HACCP, Halal. A batch-specific Certificate of Analysis is issued with every shipment, and MSDS and technical datasheets are available on request.
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