Merck
CN

63095

Sigma-Aldrich

高氯酸镁

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

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线性分子式:
Mg(ClO4)2
CAS号:
分子量:
223.21
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NB.24

等级

ACS reagent
drying agent
puriss. p.a.

质量水平

检测方案

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

形式

powder or chunks

杂质

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

痕量阴离子

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

痕量阳离子

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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相关类别

一般描述

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.

应用

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

象形图

Flame over circleExclamation mark

警示用语:

Danger

危险分类

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

靶器官

Respiratory system

储存分类代码

5.1A - Strongly oxidizing hazardous materials

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

法规信息

危险化学品

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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)
K Miyake et al.
Photochemistry and photobiology, 58(5), 631-636 (1993-11-01)
We have investigated the photosensitized monomerization of the cis,syn-cyclobutane dimer of 1,3-dimethylthymine using riboflavin tetraacetate and a 5-deazaflavin derivative as photosensitizer. Although little monomerization of the dimer is induced by photoexcitation of the flavins in the absence of any additives

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