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63095

Sigma-Aldrich

Magnesium perchlorate

puriss. p.a., drying agent, ACS reagent, ≥98.0% (calc. based on dry substance, KT)

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About This Item

Linear Formula:
Mg(ClO4)2
CAS Number:
Molecular Weight:
223.21
EC Number:
MDL number:
UNSPSC Code:
12352300
PubChem Substance ID:
NACRES:
NB.24

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grade

ACS reagent
drying agent
puriss. p.a.

Quality Level

Assay

≥98.0% (calc. based on dry substance, KT)

form

powder or chunks

impurities

≤0.005 meq/g free acid (as HClO4)
≤0.025 meq/g free alkali (as MgO)
≤8% water

anion traces

chloride (Cl-): ≤50 mg/kg
nitrate (NO3-): ≤100 mg/kg
sulfate (SO42-): ≤500 mg/kg

cation traces

Ca: ≤500 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤500 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES string

[Mg++].[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O

InChI

1S/2ClHO4.Mg/c2*2-1(3,4)5;/h2*(H,2,3,4,5);/q;;+2/p-2

InChI key

MPCRDALPQLDDFX-UHFFFAOYSA-L

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General description

Magnesium perchlorate (Mg(ClO4)2) is widely used as drying agent for gases. It can remove water from gases (with no organic contaminants) at the rate of 0.001mgwater/l.[1]

Application

Magnesium perchlorate (Mg(ClO4)2) may be employed as a catalyst in the following studies:
  • Preparation of α-aminophosphonates.[2]
  • Enantioselective Diels-Alder reaction between cyclopentadiene and 3-acryloyl-1,3-oxazolin-2-one.[3]
  • Preparation of imines and phenylhydrazones.[4]
  • Protection of alcohols in the form of t-butyl ethers.[5]

Pictograms

Flame over circleExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Ox. Sol. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

5.1A - Strongly oxidizing hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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    The first enantioselective synthesis of both Diels-Alder enantiomers with the same bis (oxazoline)-magnesium perchlorate chiral catalyst.
    Desimoni G, et al.
    Tetrahedron Letters, 37(17), 3027-3030 (1996)
    Giuseppe Bartoli et al.
    Organic letters, 7(3), 427-430 (2005-01-28)
    [reaction: see text] A new mild method for protecting alcohols as t-butyl ethers is reported. The reaction proceeds with Mg(ClO4)2 and Boc2O and shows general applicability. The deprotection of t-butyl ethers has also been revisited. Preliminary results indicate the CeCl3
    Eagleson M.
    Concise Encyclopedia Chemistry, 343-343 (1994)
    Magnesium perchlorate as an efficient catalyst for the synthesis of imines and phenylhydrazones.
    Chakraborti AK, et al.
    Tetrahedron Letters, 45(41), 7641-7644 (2004)
    T Theophanides
    Magnesium research, 9(4), 259-262 (1996-12-01)
    The interaction of Mg2+ cations in biological systems is studied by using nucleic acid bases as the biological system. Magnesium salts, such as, MgCl2 6H2O, MgSO4. 7H2O and Mg(ClO4). XH2O have been employed in order to compare their complexation with

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