High pressure-high temperature phase diagram of ammonia.

  title={High pressure-high temperature phase diagram of ammonia.},
  author={Sandra Ninet and Fr{\'e}d{\'e}ric Datchi},
  journal={The Journal of chemical physics},
  volume={128 15},
The high pressure (P)-high temperature (T) phase diagram of solid ammonia has been investigated using diamond anvil cell and resistive heating techniques. The III-IV transition line has been determined up to 20 GPa and 500 K both on compression and decompression paths. No discontinuity is observed at the expected location for the III-IV-V triple point. The melting line has been determined by visual observations of the fluid-solid equilibrium up to 9 GPa and 900 K. The experimental data are well… CONTINUE READING

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