Yttrium (III) nitrate hexahydrate (1:3:6) → Yttrium nitrate

HRID 1647368

Reaction equation

HRID 1647368 reaction equation
O.O.O.O.O.O.[N+:7]([O-:10])([O-:9])=[O:8].[Y+3:11].[N+:12]([O-:15])([O-:14])=[O:13].[N+:16]([O-:19])([O-:18])=[O:17]>O>[N+:7]([O-:10])([O-:9])=[O:8].[Y+3:11].[N+:12]([O-:15])([O-:14])=[O:13].[N+:16]([O-:19])([O-:18])=[O:17]

Participants

3

Reactant 1

HCID 166833Yttrium (III) nitrate hexahydrate (1:3:6)

Product 1

HCID 159283Yttrium nitrate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

Yttrium nitrate hexahydrate 95.7 g was dissolved in 1000 g of water, to form an aqueous solution of yttrium nitrate. The solution was heated to 80° C. with stirring, into which 500 g of 25% aqueous ammonia was added dropwisely over 2 hours. Stirring was continued for further 5 hours at 80° C., to form an yttrium hydroxide slurry. The slurry was filtered and washed thoroughly with pure water until pH of the filtrate became neutral. Thus, hydrous yttrium hydroxide was obtained. The yttrium hydroxide was dried in air at 120° C., followed by a sequential calcining in air at 500° C. for 5 hours and in nitrogen at 500° C. for 5 hours. The yttrium oxide whereby obtained was labelled Catalyst (1), which had a specific surface area of 58 m2 /g.

Sources & evidence

ORD record
ord-b78653f9a1474da1920759cb71b7d501
Source dataset
uspto-grants-1995_07
Patent number
US05430170

Linked notes

Loading…