7446-33-5 Usage
Uses
Different sources of media describe the Uses of 7446-33-5 differently. You can refer to the following data:
1. Yttrium Sulfate, also called Yttrium Sulphate, is applied in ceramics, glass, and electronics. Yttrium Sulfate is a moderately water and acid soluble Yttrium source for uses compatible with sulfates. Yttrium is used in the production of a large variety of synthetic garnets, and Yttria is used to make Yttrium-Iron-Garnets, which are very effective microwave filters.
2. Yttrium(III) sulfate octahydrate is used as a laboratory reagent, colorant, structural ceramics, optical glasses and catalysts. It finds application in electrical components and photo-optical materials.
Chemical Properties
Small, reddish-white, monosymmetric
crystals. D 2.558, loses 8H2O at 120C, decomposes
700C. Soluble in concentrated sulfuric acid; sparingly
soluble in water; insoluble in alkalies.
Physical properties
Red monoclinic crystals; density 2.59 g/cm3; loses all its water molecules at 120°C; decomposes at 700°C; sparingly soluble in water, less soluble in hot water; dissolves in concentrated sulfuric acid forming Y(HSO4)3; insoluble in alkalis; forms double salts with alkali sulfates.
uses
Yttrium sulfate is used in making many yttrium salts.
Preparation
Yttrium sulfate is produced as an intermediate in recovering yttrium from monazite or xenotime (see Yttrium, Recovery). Rare earth sulfates are separated on a cation exchange resin bed. Yttrium fraction is purified by fractional crystallization. Alternatively, yttrium sulfate may be prepared by reacting yttrium oxide with sulfuric acid.
Check Digit Verification of cas no
The CAS Registry Mumber 7446-33-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,4,4 and 6 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 7446-33:
(6*7)+(5*4)+(4*4)+(3*6)+(2*3)+(1*3)=105
105 % 10 = 5
So 7446-33-5 is a valid CAS Registry Number.
InChI:InChI=1/3H2O4S.8H2O.2Y/c3*1-5(2,3)4;;;;;;;;;;/h3*(H2,1,2,3,4);8*1H2;;/q;;;;;;;;;;;2*+3/p-6
