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Merck

30417-M

Sigma-Aldrich

Ácido fosfórico

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥85%

Sinónimos:

Ácido ortofosfórico

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About This Item

Fórmula lineal:
H3PO4
Número de CAS:
Peso molecular:
98.00
Beilstein/REAXYS Number:
1921286
EC Number:
MDL number:
UNSPSC Code:
12352106
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent
puriss. p.a.

Quality Level

agency

reag. ISO
reag. Ph. Eur.

vapor density

3.4 (vs air)

vapor pressure

2.2 mmHg ( 20 °C)
5 mmHg ( 25 °C)

assay

≥85%

form

liquid

impurities

reducing impurities, in accordance
residual solvents, in accordance
substances precipitated by ammonia, in accordance
≤0.001% KMnO4 red. matter (as O)
≤0.001% heavy metals (as Pb)
≤0.001% insoluble matters (in water)
≤0.001% volatile acids (as CH3COOH)

bp

158 °C (lit.)

mp

~40 °C (lit.)

density

1.685 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤0.0002%
fluoride (F-): ≤0.0001%
nitrate (NO3-): ≤0.0003%
phosphite, hypophosphite (as H3PO3): ≤0.002%
phosphite, hypophosphite (as H3PO3): in accordance
sulfate (SO42-): ≤0.003%

cation traces

As: ≤0.00005%
Ca: ≤0.001%
Cd: ≤0.0001%
Co: ≤0.0001%
Cr: ≤0.0001%
Cu: ≤0.0001%
Fe: ≤0.0005%
K: ≤0.0005%
Mg: ≤0.0005%
Mn: ≤0.00005%
Na: ≤0.002%
Ni: ≤1 mg/kg
Pb: ≤0.0001%
Sb: ≤2 mg/kg
Zn: ≤0.0002%

SMILES string

OP(O)(O)=O

suitability

passes test for appearance of solution

InChI

1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)

InChI key

NBIIXXVUZAFLBC-UHFFFAOYSA-N

Gene Information

human ... SRC(6714)

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General description

Phosphoric acid (H3PO4) is one of the most important and useful mineral acids. It is used as a catalyst for various organic reactions. It is also used as an inorganic acid electrolyte for fuel cell applications.

application

Phosphoric acid can be used as an activating agent for the activation of porous carbonaceous materials due to its ability to produce P-containing functional groups in the carbon matrix. These groups are excellent for promoting the formation of carbon micropores, which are useful for developing electrochemical energy storage devices.

Other Notes

El ácido fosfórico concentrado es aproximadamente H3PO4 (acuoso) al 85%.

pictograms

CorrosionExclamation mark

signalword

Danger

Hazard Classifications

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

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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J M Fujitaki et al.
Biochemistry, 20(12), 3658-3664 (1981-06-09)
Phosphorus-31 nuclear magnetic resonance (31P NMR) is used to investigate acid-labile phosphorylation of histone H4. 31P NMR detects phosphorylated histidine residues in in vitro enzymatically phosphorylated H4. The source of kinase is nuclei from either regenerating rat liver or Walker-256
P Meneses et al.
Journal of lipid research, 29(5), 679-689 (1988-05-01)
The common phospholipids from biological sources were quantitated using phosphorus-31 nuclear magnetic resonance (NMR) spectroscopy in conjunction with an analytical reagent composed of two parts: 1) 2 ml of reagent chloroform in which was dissolved 0.01-100 mg of crude tissue
D S Marinier et al.
Journal of lipid research, 29(9), 1237-1243 (1988-09-01)
In order to study the lipid composition of human white matter, we have developed a 31P NMR spectroscopy method, which allows the determination and quantitation of the main phospholipids found in biological membranes. The technique is based upon the use

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