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Citation: Zheng Chao-Gui, Huang Shou-Lin, Wang Si-Qiang. Phase Diagram of Binary Systems YbCl₃-MCl_n(M=Li, Mg, Ca, Pb; n=1 or 2)[J]. Acta Physico-Chimica Sinica, ;1994, 10(04): 342-347. doi: 10.3866/PKU.WHXB19940411 shu

Phase Diagram of Binary Systems YbCl₃-MCl_n(M=Li, Mg, Ca, Pb; n=1 or 2)

1.
Department of Chemistry, Peking University, Beijing 100871

Received Date: 5 October 1992
Available Online: 15 April 1994

The Phase diagrams of binary systems YbCl_3-MCl_n(M=Li, Mg, Ca, Pb; n=1 or 2) were investigated by means of DTA and X-ray diffeaction analysis. It was found that YbCl_3-LiCl systm is of peritectic type wich compound Li_3YbCl_6 and its phase transition is at 481 ℃ as well as the invariant points E (x_(YbCl_3)=0.410, 526 ℃) and P (x_(YbCl_3)=0.340, 547 ℃) YbCl_3-MgCl_2 system is of peritectic-like type with a peritectic-like line over the YbCl_3-rich region at 666 ℃ and the peritectic compound could not be specified. Its eutectic point e is (x_(YbCl_2)=0.380, 628 ℃). YbCl_3-CaCl_2 and YbCl_3-PbCl_2 systems are of simple eutectic type with eutectic points (x_(YbCl_3)=0.530, 615 ℃) and (x_(YbCl_3)=0.340, 415 ℃) respectively. An unstable compound, formed in the solid state, is PbYbCl_5 and decomposes at 392 ℃. Some rules of the phase diagram were also expolored.
- Phase diagram,
- System,
- YbCl3-LiCl,
- YbCl3-MgCl2,
- YbCl3-CaCl2,
- YbCl3-PbCl2,
- Rule of phase diagram
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Phase Diagram of Binary Systems YbCl3-MCln(M=Li, Mg, Ca, Pb; n=1 or 2)

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Phase Diagram of Binary Systems YbCl₃-MCl_n(M=Li, Mg, Ca, Pb; n=1 or 2)