PX0995

o-Phosphoric Acid

85% W/W, Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

• Synonym(s): Phosphoric acid, Orthophosphoric Acid, Orthophosphoric acid
• Linear Formula: H₃PO₄
• CAS Number: 7664-38-2
• Molecular Weight: 98.00
• Beilstein: 1921286
• MDL number: MFCD00011340
• UNSPSC Code: 12352301

Properties

• product name: o-Phosphoric Acid 85% W/W, Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS
• Agency: meets USP/NF
• Quality Level: 300
• vapor density: 3.4 (vs air)
• vapor pressure: 2.2 mmHg ( 20 °C); 5 mmHg ( 25 °C)
• form: liquid
• concentration: 85% phosphoric acid
• impurities: ≤0.001% Heavy metals (as Pb); ≤0.001% Insoluble matter; ≤0.001% Volatile acids (as acetic acid); ≤0.002% Antimony (Sb); ≤0.002% Calcium (Ca); ≤0.002% Magnesium (Mg); ≤0.003% Iron (Fe); ≤0.003% Sulfate (SO₄); ≤0.005% Potassium (K); ≤0.025% Sodium (Na); ≤0.5 ppm Manganese (Mn); ≤1 ppm Arsenic (As); ≤3 ppm Chloride (Cl); ≤5 ppm Nitrate (NO₃)
• color: APHA: ≤10
• pH: <0.5 (20 °C, 100 g/L in H₂O)
• bp: 158 °C (lit.)
• mp: ~40 °C (lit.)
• density: 1.685 g/mL at 25 °C (lit.)
• shipped in: ambient
• storage temp.: room temp
• SMILES string: OP(O)(O)=O
• InChI: 1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
• InChI key: NBIIXXVUZAFLBC-UHFFFAOYSA-N

Description

Application

Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

PX0995P-5 and PX0995P-1 are packaged in poly coated glass bottles
Click here for printer friendly instructions for adapting a hand pump to the 20L HDPE drum.

Other Notes

Concentrated phosphoric acid is approx. 85% H₃PO₄ (aqueous).

Analysis Note

Antimony (Sb): 0.002% max
Arsenic (As): 1ppm max
Assay: 85.0% min
Calcium (Ca): 0.002% max
Chloride (Cl): 3ppm max
Color (APHA): 10 max
Form: Clear liquid
Heavy metals (as Pb): 0.001% max
Insoluble matter: 0.001% max
Iron (Fe): 0.003% max
Magnesium (Mg): 0.002% max
Manganese (Mn): 0.5ppm max
Nitrate (NO3): 5ppm max
Potassium (K): 0.005% max
Reducing substances: To pass test
Sodium (Na): 0.025% max
Sulfate (SO4): 0.003% max
Volatile acids (as acetic acid): 0.001% max

Safety Information

• Pictograms: GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H290,H302,H314
• Precautionary Statements: P234 - P270 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B
• Storage Class Code: 8B - Non-combustible corrosive hazardous materials
• WGK: WGK 1
• Flash Point(F): does not flash
• Flash Point(C): does not flash