Phosphoric acid (H3PO4) is useful in industry for treating the metal surfaces to obtain better adhesion of paint and resin coatings. Synonyms: Orthophosphoric acid Molecular Formula: H3O4P Molecular Weight: 98.0 Linear Structural Formula: H3PO4 MDL Number: MFCD00011340 Purity: >=85% H3PO4 basis (by NaOH, titration) Melting Point: ~40 C (lit.) Density: 1.685 g/mL at 25 C (lit.) Application: Phosphoric acid may be employed as standard for the determination of phosphorus-31 nuclear magnetic resonance (31P NMR) chemical shifts of the common phospholipids. It may be employed in the following studies: •As external standard for the analysis of lipid composition of human white matter by 31P NMR spectroscopy. •As external standard during the acid-labile phosphorylation of histone H4 by 31P NMR spectroscopy. •As reference standard to investigate the surface species present on silica/alumina-supported sodium phosphates by pre- and postreaction MAS31P-NMR and FTIR spectroscopies. •As catalyst in the vapor-phase Fries rearrangement of phenylacetate at 623K over a series of surface modified and unmodified ZSM-5. Other Notes: Concentrated phosphoric acid is approx. 85% H3PO4 (aqueous).
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- UPC:
- 51172836
- Condition:
- New
- Availability:
- 3 Days
- Weight:
- 1.00 Ounces
- HazmatClass:
- Yes
- WeightUOM:
- LB
- MPN:
- 695017-2.5L
- Model Number:
- C824Z71
