T6541
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T6541
Sigma
TES
SigmaUltra, >99.5% (titration)
| Synonym: | N-[Tris(hydroxymethyl)methyl]-2-aminoethanesulfonic acid, TES free acid, 2-[(2-Hydroxy-1,1-bis(hydroxymethyl)ethyl)amino]ethanesulfonic acid |
| CAS Number: | 7365-44-8 |
| Linear Formula: | C6H15NO6S |
| Molecular Weight: | 229.25 |
| Beilstein Registry Number: | 1957061 |
| EC Number: | 230-906-3 |
| MDL number: | MFCD00007532 |
| PubChem Substance ID: | 24900386 |
Properties
| grade | SigmaUltra |
| assay | >99.5% (titration) |
| total impurities | Insoluble matter, passes filter test |
| ign. residue (900°C) | <0.1% (as SO4) |
| loss | <1% loss on drying, 110°C |
| pH | 3.5-5.0 (20 °C, 1 M in H2O) |
| useful pH range | 6.8 - 8.2 |
| pKa (25 °C) | 7.5 |
| mp | ~225 °C (dec.) |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| anion traces | chloride (Cl-): <0.005% |
| sulfate (SO42-): <0.005% | |
| cation traces | Al: <0.0005% |
| As: <0.0001% | |
| Ba: <0.0005% | |
| Bi: <0.0005% | |
| Ca: <0.001% | |
| Cd: <0.0005% | |
| Co: <0.0005% | |
| Cr: <0.0005% | |
| Cu: <0.0005% | |
| Fe: <0.0005% | |
| K: <0.02% | |
| Li: <0.0005% | |
| Mg: <0.0005% | |
| Mn: <0.0005% | |
| Mo: <0.0005% | |
| Na: <0.01% | |
| Ni: <0.0005% | |
| Pb: <0.0005% | |
| Sr: <0.0005% | |
| Zn: <0.0005% | |
| abs. | A |
| A |
Safety
| Personal Protective Equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
| Safety Statements | 22-24/25 |
| WGK Germany | 1 |
References
| Merck | Merck 13,9253 |
