product detail
Name: anhydrous erbium chloride, erbium chloride ultra dry CAS: 10138-41-7
Molecular formula: ErCl3 Molecular weight: 273.62
Description: After the reaction of erbium oxide with hydrochloric acid, the aqueous solution was evaporated, concentrated and cooled to form erbium chloride hexahydrate. In order to avoid the hydrolysis in the process of heating dehydration, the crystallization water can be removed by vacuum heating dehydration in the presence of ammonium chloride to give erbium chloride. The purpose of adding ammonium chloride is to chlorinate tbocl produced during dehydration with ammonium chloride:
Specification:
|
Name |
ErCl3_4N |
ErCl3_3N |
|
|
Molecular formula |
ErCl3 |
ErCl3 |
|
|
CAS |
10138-41-7 |
10138-41-7 |
|
|
Total rare earth TREO |
% |
≥69.60 |
≥69.40 |
|
Er2O3/TREO |
% |
≥99.99 |
≥99.90 |
|
Chloride Cl- |
% |
≥38.65 |
≥38.40 |
|
Non-rare earth impurities |
% |
≤0.0030 |
≤0.0050 |
|
Water insoluble matter |
% |
≤0.01 |
≤0.05 |
|
Water content |
% |
≤0.10 |
≤0.50 |
|
Property |
Pink powder or granular, hygroscopic, need to be stored in vacuum |
||
|
Application area |
Organic chemical reaction catalyst |
||
|
Package |
Vacuum packaging, flexible packaging according to customer needs |
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Packing: topical 5kg / bag or 1kg / bag Vacuum packaging, also provided small package: 100g, 200g, 500g aluminum foil bag vacuum small package.
Uses: Erbium chloride is an important member of the lanthanide halides, and its most mature application in organic synthesis is as a mild Lewis acid catalyst. Erbium trichloride can effectively catalyze acetalization of aldehydes in methanol solution. In the case of apparent steric hindrance, selective ketalization of two different ketones can be realized. Because of the difference of aldehyde ketone structure and ketone ketone structure, the selective reduction of the substrate molecules containing aldehyde ketone structure and ketone ketone structure can be realized.
