System: 1,4-dimethyl-2,5-piperazinedione/urea/water

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1) 1,4-dimethyl-2,5-piperazinedione
DECHEMA ID28845
FormulaC6H10N2O2
Synonym1,4-dimethyl-1,4-diazinane-2,5-dione
Synonymsarcosine anhydride
Synonymcyclo(sarcosylsarcosyl)
Synonym1,4-dimethyl-2,5-dioxopiperazine
InChi-KeyPKDGRAULLDDTRN-UHFFFAOYSA-N
Registry No.5076-82-4
2) urea
DECHEMA ID32041
FormulaCH4N2O
Synonymureaphil
Synonymcarbamide
Synonympseudourea
Synonymcarbonyl diamine
Synonymcarbamimidic acid
Synonymcarbamide resin
Synonymcarbonyl diamide
Synonymisourea
InChi-KeyXSQUKJJJFZCRTK-UHFFFAOYSA-N
Registry No.57-13-6
3) water
DECHEMA ID41137
FormulaH2O
Synonymdihydrogen oxide
Synonymhydrogen oxide
Synonymrefrigerant 718
Synonymice
InChi-KeyXLYOFNOQVPJJNP-UHFFFAOYSA-N
Registry No.7732-18-5

Available physical property data:

PropertyPhaseNo. of tablesNo. of linesData
heat capacity (cp)liquid254View
specific volume, infinite dilutionliquid16View
volumeliquid148View