| Bis-tris methane |
 |
| IUPAC name |
2-[Bis-(2-hydroxyethyl)-amino]-
2-hydroxymethyl-propane-1,3-diol |
| Other names |
Bis-tris
Bis-(2-hydroxy-ethyl)-
amino-tris(hydroxymethyl)-methane
2,2-Bis(hydroxymethyl)-
2,2,2-nitrilotriethanol
|
| Identifiers |
| CAS number |
[6976-37-0] |
| RTECS number |
TY2900000 |
| SMILES |
|
| Properties |
| Molecular formula |
C8H19NO5
|
| Molar mass |
209.2418 g/mol |
| Appearance |
white crystalline powder |
| Density |
? g/l, solid (25°C) |
| Melting point |
102-106°C (375-379K)
|
| Boiling point |
(?K)
|
| Solubility in water |
67? g/100 ml (20°C) |
| Acidity (pKa) |
5.80-7.30 @25°C |
| Hazards |
| MSDS |
External MSDS |
| Main hazards |
Irritant. |
| NFPA 704 |
|
| R-phrases |
R36, R37, R38. |
| S-phrases |
S26, S36. |
| Flash point |
Non-flammable. |
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)
Infobox references |
Bis-tris is an abbreviation of the trivial name (Bis(2-hydroxyethyl)-imino-tris(hydroxymethyl)-methane) for 2-[Bis(2-hydroxyethyl)imino]-2-(hydroxymethyl)-1,3-propanediol. It is generally used as a buffering agent in biochemistry. Bis-tris is an organic tertiary amine with labile protons having a pKa of 6.46 at 25°C. It is an effective buffer between the pH 5.8 and 7.3.
See also
References
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