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Tromethamine

Data at NIST subscription sites:

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Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny, director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tfus440.7KN/AMurrill and Breed, 1970Crystal phase 1 phase; Uncertainty assigned by TRC = 3. K; TRC
Quantity Value Units Method Reference Comment
Ttriple443.6KN/AZhang and Yang, 1990Crystal phase 1 phase; Uncertainty assigned by TRC = 0.1 K; TRC

Reduced pressure boiling point

Tboil (K) Pressure (atm) Reference Comment
492.70.013Weast and Grasselli, 1989BS

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Method Reference Comment
0.74444.6DSCDivi, Chellappa, et al., 2006AC
0.576443.6N/AZhang Zhi Ying and Yang Meng Lin, 1990See also López, Van Braak, et al., 1994.; AC

Temperature of phase transition

Ttrs (K) Initial Phase Final Phase Reference Comment
407.56crystaline, IIcrystaline, IYing and Lin, 1990DH

Enthalpy of phase transition

DeltaHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
7.9866407.44crystaline, IIcrystaline, IYing and Lin, 1990Bifurcated transition.; DH
0.5753443.4crystaline, IliquidYing and Lin, 1990DH
8.1888405.crystaline, IIcrystaline, IMurrill and Breed, 1970, 2DH
0.7268439.crystaline, IliquidMurrill and Breed, 1970, 2DH

Entropy of phase transition

DeltaStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
20.3405.crystaline, IIcrystaline, IMurrill and Breed, 1970, 2DH
1.7439.crystaline, IliquidMurrill and Breed, 1970, 2DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


References

Go To: Top, Phase change data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Murrill and Breed, 1970
Murrill, E.; Breed, L.W., Solid-solid phase transitions determined by differential scanning calorime- try. Part I. Tetrahedral Substances., Thermochim. Acta, 1970, 1, 239. [all data]

Zhang and Yang, 1990
Zhang, Z.-Y.; Yang, M.-L., Heat Capacity and Phase Transitions of 2-Amino-2-hydroxymethyl-propane-1,3- diol from 290 K to 455 K, J. Chem. Thermodyn., 1990, 22, 617. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Divi, Chellappa, et al., 2006
Divi, Suresh; Chellappa, Raja; Chandra, Dhanesh, Heat capacity measurement of organic thermal energy storage materials, The Journal of Chemical Thermodynamics, 2006, 38, 11, 1312-1326, https://doi.org/10.1016/j.jct.2006.02.005 . [all data]

Zhang Zhi Ying and Yang Meng Lin, 1990
Zhang Zhi Ying, Manuel João S.; Yang Meng Lin, Manuel João S., Heat capacity and phase transitions of 2-amino-2-hydroxymethylpropan-1,3-diol from 290 K to 455 K, The Journal of Chemical Thermodynamics, 1990, 22, 7, 617-622, https://doi.org/10.1016/0021-9614(90)90014-H . [all data]

López, Van Braak, et al., 1994
López, D.O.; Van Braak, J.; Tamarit, J.L.L.; Oonk, H.A.J., Thermodynamic phase diagram analysis of three binary systems shared by five neopentane derivatives, Calphad, 1994, 18, 4, 387-396, https://doi.org/10.1016/0364-5916(94)90016-7 . [all data]

Ying and Lin, 1990
Ying, Z.Z.; Lin, Y.M., Heat capacity and phase transitions of 2-amino-2-hydroxymethylpropan-1,3-diol from 290 to 455 K, J. Chem. Thermodynam., 1990, 22, 617-622. [all data]

Murrill and Breed, 1970, 2
Murrill, E.; Breed, L., Solid-solid phase transitions determined by differential scanning calorimetry, Thermochim. Acta, 1970, 1, 239-246. [all data]


Notes

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