Terbium Sulfate Tb2(SO4)3 nH2O CAS 13842-67-6 For Fluorescent Materials

Terbium sulfate, also known as terbium sulfate octahydrate, is an inorganic compound that is colorless or white crystal in daylight, but fluoresses green when exposed to ultraviolet lamps, a property that makes it potentially useful in the field of luminous materials.

Terbium sulfate is soluble in water, but the solubility is relatively low, and the stability is good at normal temperature and pressure. The preparation process usually involves the dissolution of high purity terbium oxide in dilute sulfuric acid and a series of chemical treatments to obtain it.

product details

products features

Name: Terbium sulfate, Terbium sulfate hydrate

Molecular formula: Tb2(SO4)3·nH2O

CAS: 13842-67-6

Molecular weight: 750.16

Description

Terbium (III) sulfate is a white monoclinic crystal. It is soluble in water but has little solubility in water. Its solubility is 3.56g/100g water at 20 ℃. It is stable at normal temperature and pressure. Terbium sulfate has green fluorescence under UV light. Dissolve high-purity terbium oxide in dilute nitric acid, add a little more dilute sulfuric acid than the reaction measurement to the solution, then add a large amount of 95% ethanol to the solution to precipitate the terbium sulfate crystal, filter out the precipitate and wash it with 95% ethanol to chlorine free ion and free acid, and dry it in air.

Specification

Name		Tb2(SO4)3_4N	Tb2(SO4)3_3N
Molecular formula		Tb2(SO4)3 nH2O	Tb2(SO4)3 nH2O
CAS		13842-67-6	13842-67-6
Total rare earth TREO	%	≥49.0	≥49.0
Tb4O7/TREO	%	≥99.99	≥99.9
Rare earth impurities	%	≤0.01	≤0.1
Fe2O3	%	≤0.001	≤0.005
SiO2	%	≤0.002	≤0.005
CaO	%	≤0.005	≤0.01
Chloride Cl-	%	≤0.03	≤0.05
property		White powder
Application area		Fluorescent material additives and chemical reagents
package		Conventional packaging, flexible packaging according to customer needs