Phosphoric Acid AR Grade is a mineral acid with versatile uses in various industries, primarily known for its role in food processing and fertilizers. CAS 7664-38-2 EC 231-633-2| Chemical Reagents net

It is a vital chemical compound used extensively in food processing, agriculture, and industrial applications for its acidity and phosphorus content. It plays a crucial role in various chemical processes and product formulations across different sectors.

General Information

Name: Phosphoric Acid
CAS Number: 7664-38-2
Molecular Weight: 98
Molecular Formula: H3PO4
MDL Number: MFCD00011340
EC Number: 231-633-2

Brand and Packaging

Brand: KeShi Packaging: 500ml × 20 bottles/case

Physical Properties

Appearance: Colorless, odorless, viscous liquid
Density: 1.885 g/cm³
Boiling Point: 158°C (decomposes)
Melting Point: 42.35°C
Solubility: Miscible with water; insoluble in organic solvents

Chemical Properties

Acidity (pKa): pKa1 = 2.16, pKa2 = 7.20, pKa3 = 12.35
Reactivity: Strong acid; reacts with metals to produce hydrogen gas; undergoes dehydration and oxidation reactions.

Structural Formula

         O
         ||
    HO-P-OH
         |
    OH

Quality inspection report

Quality inspection report

| Product Name | Specification | Lot Number  | Molecular Formula | Molecular Weight | Lot Size | Inspection Unit | Sample Category | Report Date  | Inspection Basis   |
|--------------|---------------|-------------|-------------------|------------------|----------|-----------------|-----------------|--------------|--------------------|
| Phosphoric Acid | Analytical Grade | 2023060801 | H3PO4             | 98.00            | 31.79T   | Production Unit | Inorganic       | 2023.06.13   | GB/T1282-2013      |

| Test Item                   | Standard Requirement | Test Result |
|-----------------------------|----------------------|-------------|
| Content,%                   | ≥85.0                | 85.6        |
| Appearance                  | Colorless odorless viscous liquid | Colorless odorless viscous liquid |
| Color (Hazen)               | ≤25                  | <25         |
| Volatile Acid (as H+), mmol/g | ≤0.0002             | 0.0001      |
| Chloride (Cl),%             | ≤0.0003              | <0.0003     |
| Sulfate (SO4),%             | ≤0.003               | <0.003      |
| Nitrate (NO3),%             | ≤0.0005              | <0.0005     |
| Arsenic (As),%              | ≤0.00005             | <0.00005    |
| Iron (Fe),%                 | ≤0.002               | <0.002      |
| Sodium (Na),%               | ≤0.05                | 0.0005      |
| Potassium (K),%             | ≤0.005               | 0.00001     |
| Manganese (Mn),%            | ≤0.0002              | 0.000002    |
| Nickel (Ni),%               | ≤0.0005              | 0.00001     |
| Copper (Cu),%               | ≤0.0005              | 0.00001     |
| Zinc (Zn),%                 | ≤0.001               | 0.000008    |
| Cadmium (Cd),%              | ≤0.0005              | 0.00002     |
| Lead (Pb),%                 | ≤0.001               | 0.000001    |
| Reducing Substances (as H3PO3),% | ≤0.01           | 0.002       |

Analysis Conclusion:
Meets the requirements of GB/T1282-2013 for analytical grade.

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