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222283

Sigma-Aldrich

Magnesium perchlorate

ACS reagent

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About This Item

Formule linéaire :
Mg(ClO4)2
Numéro CAS:
10034-81-8
Poids moléculaire :
223.21
Numéro CE :
233-108-3
Numéro MDL:
MFCD00011102
Code UNSPSC :
12352300
ID de substance PubChem :
329752290
Nomenclature NACRES :
NB.24
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Qualité

ACS reagent

Forme

flakes
powder, chunks or granules

Pertinence de la réaction

reagent type: oxidant

Concentration

>10% Mg (EDTA titration)

Impuretés

≤0.005 meq/g Titr. free acid
≤0.025 meq/g Titr. base

Perte

≤8% loss on drying

Adéquation

passes test for moisture absorption

Chaîne SMILES 

[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

Clé InChI

MPCRDALPQLDDFX-UHFFFAOYSA-L

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Catégories apparentées

Description générale

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]
Magnesium perchlorate may be used as a catalyst in the synthesis of the following compounds:
  • α-Aminophosphonates via three-component reaction between an amine, an aldehyde or a ketone and a di-/trialkyl phosphite.[2]
  • Imines and phenylhydrazones by the condensation of carbonyl compounds with amines and phenylhydrazine.[4]
  • Knoevenagel adducts via Knoevenagel condensation between β-diketones and aliphatic or aromatic aldehydes.[6]
It may also be used to catalyze the protection of alcohols as t-butyl ethers.[5]

Pictogrammes

Flame over circleExclamation mark
GHS03,GHS07

Mention d'avertissement

Danger

Mentions de danger

H272,H315,H319,H335

Classification des risques

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

Organes cibles

Respiratory system

Code de la classe de stockage

5.1A - Strongly oxidizing hazardous materials

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Certificats d'analyse (COA)

Lot/Batch Number
MKCW1787
MKCW6850
MKCW6693
MKCV2512
MKCT4006

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Magnesium perchlorate as efficient Lewis acid for the Knoevenagel condensation between ?-diketones and aldehydes.
Bartoli G, et al.
Tetrahedron Letters, 49(16), 2555-2557 (2008)
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)
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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Questions

1–2 of 2 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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