Tromethamine
- Formula: C4H11NO3
- Molecular weight: 121.1350
- IUPAC Standard InChI: InChI=1S/C4H11NO3/c5-4(1-6,2-7)3-8/h6-8H,1-3,5H2
- IUPAC Standard InChIKey: LENZDBCJOHFCAS-UHFFFAOYSA-N
- CAS Registry Number: 77-86-1
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: 1,3-Propanediol, 2-amino-2-(hydroxymethyl)-; Addex-Tham; Aminotrimethylolmethane; Aminotris(hydroxymethyl)methane; Methanamine, 1,1,1-tris(hydroxymethyl)-; Pehanorm; Talatrol; Tham-E; Trimethylolaminomethane; Tris; Tris amino; Tris buffer; Tris(hydroxymethyl)aminomethane; Tris(hydroxymethyl)methanamine; Tris(hydroxymethyl)methylamine; Tris-steril; Trisamin; Trisamine; Trisaminol; Trispuffer; Trizma; Trometamol; Trometamole; Tromethane; Tromethanmin; Tutofusin tris; THAM; Apiroserum Tham; Methylamine, 1,1,1-tris(hydroxymethyl)-; 2-(Hydroxymethyl)-2-amino-1,3-propanediol; 2-Amino-2-(hydroxymethyl)propane-1,3-diol; 2-Amino-2-methylol-1,3-propanediol; Tromethamin; Aminotri(hydroxymethyl)methane; TAM; Trigmo base; Triladyl; 2-Amino-2-hydroxymethylpropanediol; 2-Amino-2-(hydroxymethyl)-1,3-propanediol; Tris (hydroxymethyl)aminoethane; Tris base; Tris, free base; Trizma base; NSC 6365; Tris (buffering agent)
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Condensed phase thermochemistry data
Go To: Top, 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 |
|---|---|---|---|---|---|
| ΔfH°solid | -171.57 ± 0.20 | kcal/mol | Ccr | Laynez, Ringer, et al., 1970 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -579.93 ± 0.17 | kcal/mol | Ccb | Xue, Wu, et al., 1985 | ALS |
| ΔcH°solid | -580.37 ± 0.19 | kcal/mol | Ccr | Laynez, Ringer, et al., 1970 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid,1 bar | 41.931 | cal/mol*K | N/A | Arvidsson and Westrum, 1972 | DH |
Constant pressure heat capacity of solid
| Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 40.935 | 298.15 | Ying and Lin, 1990 | T = 290 to 450 K.; DH |
| 39.959 | 298.15 | Arvidsson and Westrum, 1972 | T = 5 to 300 K.; DH |
References
Go To: Top, Condensed phase thermochemistry data, 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]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid S°solid,1 bar Entropy of solid at standard conditions (1 bar) ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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