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Citation:
Guo Zhi-Qin, Jiang Cheng-Fa, Su Yu-Guang. Study of Phase Equilibrium on CO(NH2)2-H3BO3-H2O System At 25 ℃ and 35 ℃[J]. Acta Physico-Chimica Sinica,
;1992, 8(06): 829-833.
doi:
10.3866/PKU.WHXB19920622
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The phase equilibrium data of CO(NH_2)_2-H_3BO_3-H_2O system at 25 ℃ and 35 ℃ have been presented and the phase diagrams have been drawn too. According to the diagrams, no complex salts of CO(NH_2)_2 and H_3BO_3 have formed in CO(NH_2)_2-H_3BO_3-H_2O system at 25 ℃ and 35 ℃.
By using the equation of Margules, the phase equilibrium data of CO(NH_2)_2-H_3BO_3-H_2O system at 25 ℃ and 35 ℃ have been calculated. The calculations coincide well with the experimental data.-
Keywords:
- Urea; Boric acid; Phase equilibrium
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