Terbium Trisulfate Hydrate, Terbium Sulfate Hydrate, 13842‑67‑6

Terbium Trisulfate Hydrate, Terbium Sulfate Hydrate, 13842‑67‑6

🔹 Chemical Profile

1. Identification

• Name: Terbium(III) sulfate hydrate

• Synonyms: Terbium trisulfate hydrate, Terbium sulfate hydrate

• CAS Number: 13842‑67‑6

• EC Number: 237‑601‑0

• HS Code: 283429

2. Chemical Structure

• Molecular Formula: Tb₂(SO₄)₃·xH₂O (commonly octahydrate)

• Molecular Weight: ~634 g/mol (anhydrous base)

• Purity: ≥ 99% (rare earth grade)

3. Physical Properties

• Appearance: White to pale pink crystalline solid (terbium salts may show faint coloration)

• Density: ~3.8 g/cm³ (approximate)

• Melting Point: Decomposes on heating

• Solubility: Soluble in water

• Hygroscopic: Yes

4. Chemical Properties

• Reactivity: Stable under ambient conditions; reacts with strong bases and reducing agents

• Stability: Moisture‑sensitive; decomposes at elevated temperatures

• Nature: Acidic salt

5. Applications

• Precursor for terbium compounds

• Phosphors and luminescent materials (Tb³⁺ is widely used for green emission in lighting and displays)

• Electronics and photonics (terbium‑doped materials for lasers and optical devices)

• Laboratory reagent in rare earth chemistry

• Advanced ceramics and specialty glass

6. Packaging & Logistics

• Forms: Crystalline solid or powder

• Storage: Cool, dry, sealed containers; protect from moisture

• Transport Classification: Generally non‑hazardous salt (but handle with care)

• Shelf Life: ~2 years under proper storage

7. Regulatory & Safety

• GHS Classification: Irritant

• CLP Labeling:

  • H315: Causes skin irritation

  • H319: Causes serious eye irritation

• REACH / KKDİK Compliance: Required

• MSDS: Must be provided

8. Quality & Certification

• ISO 9001 compliant production

• Not approved for food or cosmetic use

• No Halal/Kosher certification

9. Notes

• Terbium salts are especially important in phosphors for green luminescence, used in LEDs, CRTs, and lasers.

• Requires moisture‑proof packaging due to hygroscopic nature.

📊 Sectoral Compliance Table