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438081

Acide phosphorique

greener alternative

ACS reagent, ≥85 wt. % in H2O

Synonyme(s) :

Acide orthophosphorique

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A propos de cet article

Formule linéaire :
H3PO4
Numéro CAS:
7664-38-2
Poids moléculaire :
98.00
UNSPSC Code:
12352106
NACRES:
NA.21
PubChem Substance ID:
329756407
EC Number:
231-633-2
Beilstein/REAXYS Number:
1921286
MDL number:
MFCD00011340
eCl@ss:
38070202
Assay:
≥85% (with NaOH, titration)
Concentration:
≥85 wt. % in H2O
Form:
liquid
Grade:
ACS reagent
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grade

ACS reagent

Quality Level

200

vapor density

3.4 (vs air)

vapor pressure

2.2 mmHg ( 20 °C), 5 mmHg ( 25 °C)

assay

≥85% (with NaOH, titration)

form

liquid

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

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concentration

≥85 wt. % in H2O

technique(s)

NMR: suitable

impurities

Reducing substances, passes test, ≤0.001% volatile acids (as CH3COOH)

color

APHA: ≤10

pH

<1 (100%)

bp

158 °C (lit.)

mp

~40 °C (lit.)

density

1.685 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤3 ppm, nitrate (NO3-): ≤5 ppm, sulfate (SO42-): ≤0.003%

cation traces

As: ≤1 ppm, Ca: ≤0.002%, Fe: ≤0.003%, K: ≤0.005%, Mg: ≤0.02%, Mn: ≤0.5 ppm, Na: ≤0.025%, Sb: ≤0.002%, heavy metals: ≤0.001% (by ICP)

greener alternative category

Enabling,

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

Gene Information

human ... SRC(6714)

General description

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here.
Phosphoric acid (H3PO4), also known as orthophosphoric acid, is an inorganic acid. It has a wide range of industrial applications such as an intermediate to produce animal feedstock, to prepare stock solutions for workup procedures and to treat the metal surfaces for better adhesion of paint and resin coatings. In the food industry it is used as a preservative, an acidulant and flavor enhancer.

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.
  • As an eco-friendly reagent for the removal of protecting groups like tert-butyl carbamates, tert-butyl esters and tert-butyl ethers.

Other Notes

L′acide phosphorique concentré est composé de H3PO4 à environ 85 % (aqueux).

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pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

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

Classe de stockage

8A - Combustible corrosive hazardous materials

flash_point_f

Not applicable

flash_point_c

Not applicable

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Protocoles

Enzymatic Assay of Alcohol Dehydrogenase (EC 1.1.1.1)

To measure alcohol dehydrogenase activity, this assay uses β-nicotinamide adenine dinucleotide phosphate and a continuous spectrophotometric rate determination at 340 nm.

Aqueous phosphoric acid as a mild reagent for deprotection of tert-butyl carbamates, esters, and ethers.
Li B, et al.
The Journal of Organic Chemistry, 71(24), 9045-9050 (2006)
A simple method of increasing the adhesion of acrylic filling materials to enamel surfaces.
Buonocore MG.
Journal of Dental Research, 34(6), 849-853 (1955)
Myers RL.
The 100 Most Important Chemical Compounds: A Reference Guide, 220-220 (2007)
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Numéro d'article de commerce international

RéférenceGTIN
438081-6X2.5L04061832131986
438081-6X500ML04061832132044
438081-2.5L04061837736964
438081-500ML04061837736988