Samarium Chloride

• CAS: 13465-55-9
• Catalog Number: ACM13465559-2
• Category: Main Products
• Molecular Weight: 364.81
• Molecular Formula: SmCl3·6H₂O
• Synonyms: Samarium trichloride hexahydrate
• Melting Point: 110 °C
• Appearance: Light yellow solid
• Storage: 0-6°C

Case Study

Thermal Decomposition of Samarium Trichloride Hexahydrate by UV-Vis Diffuse Reflectance

Paul, Pete B., et al. Applied Spectroscopy, 2012, 66(1), 90-98.

The thermal decomposition of samarium trichloride hexahydrate (SmCl3·6H2O) in air and at low pressure was monitored using UV-visible (UV-vis) diffuse reflectance spectroscopy. Monitoring the diffuse reflectance spectrum allows for easy identification of intermediates and products produced by the thermal decomposition of SmCl3·6H2O in air.
Interpretation of the diffuse reflectance spectrum of SmCl3·6H2O
· An identical hexahydrate fingerprint spectrum was recorded across a temperature range from ambient temperature (25 °C) to 70 °C.
· Between 70 °C and 77 °C, a new fingerprint spectrum emerged as the original features disappeared, suggesting the formation of a new species, believed to be the pentahydrate. The fingerprint spectrum of the pentahydrate remained consistent from 77 °C to 89 °C.
· A third fingerprint spectrum, indicative of the tetrahydrate formation, was observed between 95 °C and 107 °C.
· The fingerprint spectrum associated with the trihydrate remained stable throughout the 114 °C to 155 °C range.
· The dihydrate's fingerprint spectrum was only detected between 161 °C and 168 °C, after which it began to decompose into the monohydrate.
· The monohydrate was distinctly identifiable due to its significantly different fingerprint spectrum, which remained unchanged from 175 °C to 315 °C.
· Above 315 °C, the fingerprint spectrum of SmOCl indicated that the final decomposition step had taken place, with the identifying spectrum remaining stable up to 460 °C.

Samarium Complex Prepared from Samarium Trichloride Hexahydrate and Its Thermochemical Study

Paul, Pete B., et al. Applied Spectroscopy, 2012, 66(1), 90-98. Li, Qiang-Guo, et al. Thermochimica acta, 2006, 441(2), 195-198.

The complex Sm(C7H5O3)2·(C9H6NO) was synthesized by reacting samarium chloride hexahydrate (SmCl3·6H2O) with salicylic acid and 8-hydroxyquinoline. The standard molar formation enthalpy of Sm(C7H5O3)2·(C9H6NO) was estimated to be -2055.9 ± 3.03 kJ·mol-1 by Hess's law.
Preparation procedure of samarium complex
· A total of 0.02 mol of powdered C7H6O3 (s) was dissolved in 40 cm3 of absolute ethyl alcohol, referred to as solution A. When a 10% aqueous solution of NaOH (equivalent to 0.02 mol of NaOH) was added to solution A, it resulted in the formation of sodium salicylate, known as solution B. Additionally, 0.01 mol of powdered 8-hydroxyquinoline was dissolved in another 40 cm3 of absolute ethyl alcohol, referred to as solution C. Combining solution B with solution C yielded a mixture designated as solution D. Furthermore, 0.01 mol of powdered SmCl3·6H2O was dissolved in 40 cm3 of absolute ethyl alcohol to create solution E. After 3 hours of stirring with a magnetic stirrer at 37.5 °C, solution E was gradually added to solution D, resulting in the formation of crystals.
· The resulting mixture was allowed to settle at a pH of 6.5-7.0 for 12 hours. Ultimately, the primrose yellow solid complex was collected through vacuum filtration, rinsed with multiple portions of distilled water, followed by washes with absolute ethyl alcohol and acetone. The final product was placed in a vacuum desiccator at 37.5 °C for 24 hours and stored until the weight of the crystals stabilized.

Custom Reviews

April 6, 2023

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Medical Diagnosis
Samarium(iii) chloride filled single-walled carbon nanotubes are very well used in nuclear medicine for diagnostics and cancer therapy

Custom Q&A

What is the molecular formula of Samarium(III) chloride hexahydrate?

The molecular formula of Samarium(III) chloride hexahydrate is Cl3H12O6Sm.

What is the molecular weight of Samarium(III) chloride hexahydrate?

The molecular weight of Samarium(III) chloride hexahydrate is 364.8 g/mol.

What are some synonyms for Samarium(III) chloride hexahydrate?

Some synonyms for Samarium(III) chloride hexahydrate include Samarium chloride hexahydrate, Samarium trichloride hexahydrate, and trichlorosamarium;hexahydrate.

What is the IUPAC name of Samarium(III) chloride hexahydrate?

The IUPAC name of Samarium(III) chloride hexahydrate is trichlorosamarium;hexahydrate.

What is the InChI of Samarium(III) chloride hexahydrate?

The InChI of Samarium(III) chloride hexahydrate is InChI=1S/3ClH.6H2O.Sm/h3*1H;6*1H2;/q;;;;;;;;;+3/p-3.

What is the InChIKey of Samarium(III) chloride hexahydrate?

The InChIKey of Samarium(III) chloride hexahydrate is TXVNDKHBDRURNU-UHFFFAOYSA-K.

What is the CAS number of Samarium(III) chloride hexahydrate?

The CAS number of Samarium(III) chloride hexahydrate is 13465-55-9.

What is the European Community (EC) number of Samarium(III) chloride hexahydrate?

The European Community (EC) number of Samarium(III) chloride hexahydrate is 681-110-1.

Is Samarium(III) chloride hexahydrate a canonical compound?

Yes, Samarium(III) chloride hexahydrate is a canonical compound.