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Tromethamine

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Condensed phase thermochemistry data

Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, References, Notes

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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltafsolid-171.57 ± 0.20kcal/molCcrLaynez, Ringer, et al., 1970ALS
Quantity Value Units Method Reference Comment
Deltacsolid-579.93 ± 0.17kcal/molCcbXue, Wu, et al., 1985ALS
Deltacsolid-580.37 ± 0.19kcal/molCcrLaynez, Ringer, et al., 1970ALS
Quantity Value Units Method Reference Comment
solid,1 bar41.931cal/mol*KN/AArvidsson and Westrum, 1972DH

Constant pressure heat capacity of solid

Cp,solid (cal/mol*K) Temperature (K) Reference Comment
40.935298.15Ying and Lin, 1990T = 290 to 450 K.; DH
39.959298.15Arvidsson and Westrum, 1972T = 5 to 300 K.; DH

Phase change data

Go To: Top, Condensed phase thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, References, Notes

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:


IR Spectrum

Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), UV/Visible spectrum, References, Notes

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

Data compiled by: Coblentz Society, Inc.

Condensed Phase Spectrum

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IR spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

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Owner Copyright (C) 1987 by the Coblentz Society
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin WYANDOTTE CHEMICALS CORP.
Source reference COBLENTZ NO. 5998
Date Not specified, most likely prior to 1970
Name(s) 2-amino-2-(hydroxymethyl)-1,3-propanediol
State SOLID (OIL MULL)
Instrument BAIRD (GRATING)
Instrument parameters NaCl PRISM
Path length CAPILLARY
SPECTRAL CONTAMINATION DUE TO OIL AROUND 2900 CM-1
Resolution 2
Melting point 171 C

This IR spectrum is from the Coblentz Society's evaluated infrared reference spectra collection.


Mass spectrum (electron ionization)

Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, UV/Visible spectrum, References, Notes

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

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass spectrum
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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin Japan AIST/NIMC Database- Spectrum MS-NW-1766
NIST MS number 229605

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


UV/Visible spectrum

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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 by: Victor Talrose, Alexander N. Yermakov, Alexy A. Usov, Antonina A. Goncharova, Axlexander N. Leskin, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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UVVis spectrum
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Additional Data

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Source Parish, 1971
Owner INEP CP RAS, NIST OSRD
Collection (C) 2007 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS
Source reference RAS UV No. 19878
Instrument Unicam SP 500

References

Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Notes

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

Laynez, Ringer, et al., 1970
Laynez, J.; Ringer, B.; Sunner, S., On the accuracy of rotating-bomb combustion calorimetry for organic chlorine and bromine compounds, J. Chem. Thermodyn., 1970, 2, 603-610. [all data]

Xue, Wu, et al., 1985
Xue, R.; Wu, D.; Qu, S., Studies on thermochemistry of porphyrins. I. A precision combustion calorimetric apparatus and calibration, Wuli Huaxue Xuebao, 1985, 1, 76-81. [all data]

Arvidsson and Westrum, 1972
Arvidsson, K.; Westrum, E.F., Jr., Tris(hydroxymethane.yl)aminomethane. Heat capacities and thermodynamic properties from 5 to 350K, J. Chem. Thermodynam., 1972, 4, 449-453. [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
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]

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]

Parish, 1971
Parish, C., UV atlas of organic compounds, 1971, 5, K2/4. [all data]


Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, References