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Merck

30755

Ácido perclórico

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 70.0-72.0%

Sinónimos:

PCA

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About This Item

Fórmula lineal:
HClO4
Número CAS:
Peso molecular:
100.46
UNSPSC Code:
12352106
PubChem Substance ID:
MDL number:

Nombre del producto

Ácido perclórico, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 70.0-72.0%

InChI

1S/ClHO4/c2-1(3,4)5/h(H,2,3,4,5)

SMILES string

OCl(=O)(=O)=O

InChI key

VLTRZXGMWDSKGL-UHFFFAOYSA-N

grade

ACS reagent
puriss. p.a.

agency

USP/NF
reag. ISO
reag. Ph. Eur.

assay

70.0-72.0%

form

liquid

impurities

≤0.00005% free chlorine (Cl)
≤0.0001% heavy metals (as Pb)
≤0.001% total nitrogen (N)

ign. residue

≤0.003% (as SO4)

density

1.670 g/cm3

anion traces

chlorate (ClO3-): ≤10 mg/kg
chloride (Cl-): ≤3 mg/kg
phosphate, silicate (as SiO2): ≤5 mg/kg
sulfate (SO42-): ≤10 mg/kg

cation traces

Ag: ≤0.1 mg/kg
Al: ≤0.05 mg/kg
As: ≤0.05 mg/kg
Ba: ≤0.02 mg/kg
Be: ≤0.02 mg/kg
Bi: ≤0.1 mg/kg
Ca: ≤0.5 mg/kg
Cd: ≤0.05 mg/kg
Co: ≤0.05 mg/kg
Cu: ≤0.1 mg/kg
Fe: ≤1 mg/kg
Ge: ≤0.05 mg/kg
K: ≤0.1 mg/kg
Li: ≤0.02 mg/kg
Mg: ≤0.5 mg/kg
Mn: ≤0.02 mg/kg
Mo: ≤0.05 mg/kg
Ni: ≤0.1 mg/kg
Pb: ≤0.05 mg/kg
Sr: ≤0.02 mg/kg
Ti: ≤0.1 mg/kg
Tl: ≤0.05 mg/kg
V: ≤0.05 mg/kg
Zn: ≤0.1 mg/kg
Zr: ≤0.1 mg/kg

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Application

Perchloric acid can be used:      
  • In the synthesis of graphite oxide via electrochemical oxidation of natural graphite.      
  • As a reaction medium in oxidations reactions.     
  • As a dopant in the preparation of perchloric acid-functionalized polyaniline (HClO4/PANI) catalyst for the synthesis of 2-substituted benzothiazoles by condensation reaction between o-aminothiophenol with aldehydes.

It can also be used in the following:      
  • Silica-supported perchloric acid (HClO4-SiO2) is used as a catalyst to synthesize amidoalkyl naphthols by the condensation reaction of 2-naphthol, aromatic aldehydes, and acetonitrile.      
  • HClO4-SiO2 is used in the Friedlander quinoline synthesis by the condensation reaction of 2-aminoaryl ketones and carbonyl compounds.      
  • Alumina-supported perchloric acid (Al2O3-HClO4) is used as a catalyst in the synthesis of α-(α-amidobenzyl)-β-naphthols.

General description

Perchloric acid (HClO4) is a strong mineral acid. It has powerful oxidizing and dehydrating properties when it is hot and concentrated. It is commercially available in a concentration of 70% (by weight) in water. Aqueous solution of HClO4 is regarded as a super acid (stronger than sulfuric and nitric acids), but it is not necessarily a powerful oxidizer.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Ox. Liq. 1 - Skin Corr. 1A - STOT RE 2

target_organs

Thyroid

Clase de almacenamiento

5.1A - Strongly oxidizing hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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Sulfur in plant materials by digestion with nitric and perchloric acid.
Blanchar RW, et al.
Soil Science Society of America Journal. Soil Science Society of America, 29(1), 71-72 (1965)
Eagleson M.
Concise Encyclopedia Chemistry, 790-790 (1994)
Dipanwita Das et al.
Journal of the American Chemical Society, 135(10), 4018-4026 (2013-02-28)
Catalytic four-electron reduction of O2 by ferrocene (Fc) and 1,1'-dimethylferrocene (Me2Fc) occurs efficiently with a dinuclear copper(II) complex [Cu(II)2(XYLO)(OH)](2+) (1), where XYLO is a m-xylene-linked bis[(2-(2-pyridyl)ethyl)amine] dinucleating ligand with copper-bridging phenolate moiety], in the presence of perchloric acid (HClO4) in
Taro Takami et al.
Cancer research, 67(20), 9844-9851 (2007-10-19)
Hepatocyte growth factor (HGF) has been reported to have both positive and negative effects on carcinogenesis. Here, we show that the loss of c-Met signaling in hepatocytes enhanced rather than suppressed the early stages of chemical hepatocarcinogenesis. c-Met conditional knockout
Dipanwita Das et al.
Journal of the American Chemical Society, 135(7), 2825-2834 (2013-02-12)
Selective two-electron plus two-proton (2e(-)/2H(+)) reduction of O(2) to hydrogen peroxide by ferrocene (Fc) or 1,1'-dimethylferrocene (Me(2)Fc) in the presence of perchloric acid is catalyzed efficiently by a mononuclear copper(II) complex, [Cu(II)(tepa)](2+) (1; tepa = tris[2-(2-pyridyl)ethyl]amine) in acetone. The E(1/2)

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