Phosphoric acid CAS#7664-38-2
CAS Number: 7664-38-2
Chemical Formula: H3O4P
Synonyms:
White phosphoric acid
Phosphoric acid hydrogen
85 WT% solution in water
Appearance: Colorless liquid
HS Code: 2809 20 00
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Products Description of Phosphoric acid CAS#7664-38-2
Phosphoric acid is a phosphorus oxoacid where one oxo group and three hydroxyl groups are covalently bonded to a central phosphorus atom.
It functions as a solvent, human metabolite, algal metabolite, and fertilizer. It is also the conjugate acid of dihydrogenphosphate and phosphate ions..
Parameters
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 |
biological source | synthetic |
Water Solubility | MISCIBLE |
λmax | λ: 260 nm Amax: ≤0.05 |
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
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 |
OEB | C |
OEL | TWA: 1 mg/m3, STEL: 3 mg/m3 |
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). |
IDLA | 1,000 mg/m3 |
Product Application of Phosphoric acid CAS#7664-38-2
Phosphoric acid (also known as orthophosphoric acid) is an inorganic acidulant. It is produced by burning phosphorus in excess air to generate phosphorus pentoxide, which is then dissolved in water to form orthophosphoric acid of varying concentrations.
It is a strong acid soluble in water, and its acid salts are called phosphates. In the food industry, it serves as a flavoring acid in cola and root beer beverages, imparting appropriate acidity and tartness.
It acts as a synergistic antioxidant in vegetable shortenings. In yeast production, it helps maintain an acidic pH and provides a phosphorus source. Additionally, it functions as an acidulant in cheese.
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