Phosphoric acid(food grade)
CAS Number: 7664-38-2
Chemical Formula: H3O4P
Synonyms: Phosphorsaeureloesungen, phosphoricacidsolutions
Appearance: Transparent Liquid
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Phosphoric acid, also known as orthophosphoric acid (molecular formula H3PO4), appears as a colorless, clear viscous liquid or orthorhombic crystal in its pure form, with no odor but a strong acidic taste. The 85% grade is a colorless, transparent or slightly tinted viscous liquid. It has a melting point of 42.35℃, specific gravity of 1.70, and is a high-boiling acid miscible with water in all proportions. At 213℃ it loses half its water to form pyrophosphoric acid; further heating to 300℃ yields metaphosphoric acid. Its relative molecular mass is 81.834.
Parameters
| Item | Value |
| Melting point | ~40 °C(lit.) |
| Boiling point | 158 °C(lit.) |
| density | 1.685 g/mL at 25 °C(lit.) |
| vapor density | 3.4 (vs air) |
| vapor pressure | 2.2 mm Hg ( 20 °C) |
| refractive index | n20/D 1.433 |
| FEMA | 2900 | PHOSPHORIC ACID |
| storage temp. | no restrictions. |
| solubility | H2O: soluble |
| pka | 2.1-7.2-12.3(at 25℃) |
| form | Solid or Viscous Liquid |
| Specific Gravity | 1.7 |
| color | ≤10(APHA) |
| PH | 3.06(1 mM solution);2.26(10 mM solution);1.63(100 mM solution); |
| Odor | Odorless |
| PH Range | 1.5 |
| Water Solubility | MISCIBLE |
| λmax | λ: 260 nm Amax: ≤0.05; λ: 280 nm Amax: ≤0.04 |
| Merck | 14,7344 |
| BRN | 1921286 |
| Exposure limits | TLV-TWA 1 mg/m3 (ACGIH, MSHA, and OSHA); TLV-STEL 3 mg/m3 (ACGIH). |
| Dielectric constant | 61.0 |
| InChIKey | NBIIXXVUZAFLBC-UHFFFAOYSA-N |
| LogP | -2.15 |
| CAS DataBase Reference | 7664-38-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Phosphoric acid(7664-38-2) |
| EPA Substance Registry System | Phosphoric acid (7664-38-2) |
Safety Information
| Item | Value |
| Hazard Codes | C,Xn,T,F |
| Risk Statements | 34-35-22-39/23/24/25-36/38-23/24/25-11 |
| Safety Statements | 7-16-26-36/37-45-36/37/39-1/2-24/25 |
| RIDADR | UN 3453 8/PG 3 |
| WGK Germany | 3 |
| RTECS | TB6300000 |
| F | 3-10 |
| TSCA | Yes |
| HS Code | 2809 20 00 |
| HazardClass | 8 |
| PackingGroup | III |
| Hazardous Substances Data | 7664-38-2(Hazardous Substances Data) |
| Toxicity | ADI 0 to 70 mg / kg (total phosphate content in terms of phosphorus, FAO / WHO, 2001). GRAS (FDA, § 182.1073, 2000). LD50 1530mg / kg (rat, oral). Daily intake of 2–4 g may cause mild diarrhea. Usable in cola drinks at 0.02%–0.06% as acidulant. |
| IDLA | 1,000 mg/m3 |
Product Application of Phosphoric acid CAS#7664-38-2
Phosphoric acid is an inorganic acidulant made by oxidizing phosphorus in excess air to phosphorus pentoxide, which is then hydrated to orthophosphoric acid at various concentrations. It is a strong acid fully soluble in water; its salts are known as phosphates. It is widely used as an acid flavor agent in cola and root beer drinks to deliver a characteristic tart and acidic taste.
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