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49685

Supelco

Phosphoric acid

suitable for HPLC, LiChropur, 85%

Synonym(s):

Orthophosphoric acid

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About This Item

Linear Formula:
H3PO4
CAS Number:
Molecular Weight:
98.00
Beilstein/REAXYS Number:
1921286
MDL number:
UNSPSC Code:
41116105
NACRES:
NB.21

vapor density

3.4 (vs air)

vapor pressure

2.2 mmHg ( 20 °C)
5 mmHg ( 25 °C)

assay

85%
85.0-90.0% (NaOH 1 M, T)

form

liquid

quality

LiChropur

technique(s)

HPLC: suitable

bp

158 °C (lit.)

mp

~40 °C (lit.)

density

1.680-1.720 g/mL at 20 °C
1.685 g/mL at 25 °C (lit.)

λ

neat

UV absorption

λ: 210 nm Amax: ≤0.07
λ: 220 nm Amax: ≤0.06
λ: 230 nm Amax: ≤0.05
λ: 250 nm Amax: ≤0.04
λ: 500 nm Amax: ≤0.02

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

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Application


  • Interactions between irrigants commonly used in endodontic practice: a chemical analysis.: This study explores the chemical interactions between various endodontic irrigants, including phosphoric acid, when used in dental treatments. The findings highlight the potential effects of these interactions on the effectiveness of the treatments (Gomes BP et al., 2013).

  • Quantifying phosphoric acid in high-temperature polymer electrolyte fuel cell components by X-ray tomographic microscopy.: This research presents a method for quantifying phosphoric acid concentrations in fuel cell components using advanced X-ray imaging techniques, providing insights into the material characteristics and performance in high-temperature operational environments (Schmidt TJ et al., 2014).

  • Activated carbon fibers with a high heteroatom content by chemical activation of PBO with phosphoric acid.: The study discusses the production of activated carbon fibers using phosphoric acid, emphasizing the incorporation of heteroatoms that enhance the material′s adsorptive properties, relevant in various analytical applications in chemistry (Tascon JM et al., 2012).

  • Activated carbon fibers with a high content of surface functional groups by phosphoric acid activation of PPTA.: This article investigates the activation of poly(p-phenylene terephthalamide) with phosphoric acid to produce carbon fibers enriched with functional groups, enhancing their utility in chemical separations and catalysis (Tascon JM et al., 2011).

  • Phosphoric acid purification sludge: Potential in heavy metals and rare earth elements.: This research evaluates the potential of phosphoric acid sludge as a source of heavy metals and rare earth elements, offering a perspective on waste valorization and resource recovery in environmental chemistry (Moutte J et al., 2019).

Other Notes

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

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Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

related product

Product No.
Description
Pricing

pictograms

CorrosionExclamation mark

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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Phosphoric acid crystalline, ≥99.999% trace metals basis

Sigma-Aldrich

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