Molecular Structure of Terbium chloride, hexahydrate (CAS NO.13798-24-8):

EINECS: 233-132-4
IUPAC Name: Terbium(3+) trichloride hexahydrate 
Molecular Formula: Cl₃H₁₂O₆Tb
Molecular Weight: 373.376020 g/mol
H-Bond Donor: 6
H-Bond Acceptor: 9
Canonical SMILES: O.O.O.O.O.O.[Cl-].[Cl-].[Cl-].[Tb+3]
InChI: InChI=1S/3ClH.6H2O.Tb/h3*1H;6*1H2;/q;;;;;;;;;+3/p-3
InChIKey: ULJUVCOAZNLCJZ-UHFFFAOYSA-K
Density: 4.35 g/mL at 25 °C(lit.)
Enthalpy of Vaporization: 40.65 kJ/mol
Boiling Point: 100 °C at 760 mmHg
Vapour Pressure: 24.5 mmHg at 25 °C
Sensitive: Hygroscopic
Storage Temp.: 0-6 °C

Safety Information of Terbium chloride, hexahydrate (CAS NO.13798-24-8):
Hazard Codes: Xi 
Risk Statements: 36/38
R36/38:Irritating to eyes and skin
Safety Statements: 26-36-24/25
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S36:Wear suitable protective clothing
S24/25:Avoid contact with skin and eyes
WGK Germany: 2
RTECS: WY9110000
F: 3-10
Moderately toxic by intraperitoneal route. Low toxicity by ingestion. Mutation data reported. When heated to decomposition it emits toxic vapors of Tb and Cl⁻.

  Terbium chloride, hexahydrate with CAS registry number of 13798-24-8 is white solid, also known as Terbium trichloride hexahydrate . When heated to decomposition, it emits Hydrogen chloride .