YTTRIUM SULFATE OCTAHYDRATE
- CAS NO.：7446-33-5
- Empirical Formula: H4O5SY
- Molecular Weight: 204.99
- MDL number: MFCD00149946
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-07-10 14:42:23
What is YTTRIUM SULFATE OCTAHYDRATE?
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.
The Uses of YTTRIUM SULFATE OCTAHYDRATE
Yttrium sulfate is used in making many yttrium salts.
The Uses of YTTRIUM SULFATE OCTAHYDRATE
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.
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.
Properties of YTTRIUM SULFATE OCTAHYDRATE
| Density | 2.5 g/mL at 25 °C(lit.) |
| form | Crystalline |
| color | White to pale yellow |
| Specific Gravity | 2.558 |
| Water Solubility | Water solubility decreases with increasing temperature. Soluble in water. |
| Merck | 14,10107 |
| CAS DataBase Reference | 7446-33-5(CAS DataBase Reference) |
Safety information for YTTRIUM SULFATE OCTAHYDRATE
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for YTTRIUM SULFATE OCTAHYDRATE
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