Terbium Chloride Hexahydrate, Terbium Trichloride Hexahydrate, 13798-24-8

Terbium Chloride Hexahydrate, Terbium Trichloride Hexahydrate, 13798-24-8

1. General Information

• Chemical Name: Terbium(III) chloride hexahydrate

• CAS No: 13798-24-8

• Formula: TbCl₃·6H₂O

• Molecular Weight: 373.33 g/mol

• Appearance: Light green crystalline solid, hygroscopic

• Packaging Types: Glass bottles, sealed containers, 25 kg drums

2. Technical Properties

• Density: ~3.4 g/cm³

• Solubility: Highly soluble in water, reacts with moisture

• Melting Point: ~95 °C (hydrate form, decomposes with water loss)

• Boiling Point: ~1,200 °C (anhydrous form)

• Crystal Structure: Typical rare-earth halide structure

3. Detailed Applications

• Optical Materials: Precursor for terbium-based phosphors used in green luminescence (TV screens, LEDs)

• Magnetic Materials: Applied in rare-earth magnets and alloys

• Catalysis: Used in organic synthesis reactions

• Research: Rare-earth chemistry and advanced material development

4. Production Method / Sources

• Reaction of terbium oxide (Tb₄O₇) with hydrochloric acid

• Extraction and purification from rare-earth ores

5. Sectoral Suitability Table

6. Mandatory Processes (Regulatory Requirements)

• REACH registration (EU)

• CLP/GHS labeling compliance

• National chemical notification requirements

7. Other Names

• International: Terbium trichloride hexahydrate

• Commercial: TbCl₃·6H₂O

• Common Name: Terbium chloride hexahydrate

8. Alternative Products / Substitutes

• Terbium oxide (Tb₄O₇)

• Terbium nitrate (Tb(NO₃)₃)

9. Regulatory & Compliance

• REACH: Registered substance

• TS EN: Compliant with chemical standards

• FDA/EFSA: Not approved as food additive

• ISO: Produced under ISO 9001 quality systems

10. Safety & MSDS Summary

• Hazards: Irritant, moisture-sensitive

• GHS Symbols: ⚠️ Irritant

• Storage: Airtight, moisture-free environment

• Transport: General chemical transport rules

• PPE: Gloves, goggles, protective clothing

11. Market & Commercial Information

• Packaging: 25 kg drums, sealed ampoules for lab-grade

• Trade Names: Available from Alfa Aesar, Sigma-Aldrich, niche rare-earth suppliers

• Main Producer Countries: China, USA, Germany

12. Quality & Analytical Data

• Purity Levels: 99.9% – 99.99% (trace metals basis)

• Forms: Hexahydrate crystalline solid, anhydrous form also available

• Testing Methods: ICP-MS, XRD, FTIR

13. Environmental & Sustainability Aspects

• Rare-earth mining has high environmental impact

• Requires controlled disposal due to reactivity with moisture

• Recycling pathways are limited compared to common salts

14. Visual Support

• GHS Pictograms: ⚠️ Irritant

• Packaging Examples: Glass bottles, drums

• Sector Suitability Table: ✔/✖ marks shown above