B7535
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B7535
Sigma
BIS-TRIS
SigmaUltra, ≥98.0% (titration)
| Synonym: | 2,2-Bis(hydroxymethyl)-2,2′,2″-nitrilotriethanol, 2-Bis(2-hydroxyethyl)amino-2-(hydroxymethyl)-1,3-propanediol, Bis(2-hydroxyethyl)amino-tris(hydroxymethyl)methane |
| CAS Number: | 6976-37-0 |
| Linear Formula: | C8H19NO5 |
| Molecular Weight: | 209.24 |
| Beilstein Registry Number: | 2205275 |
| EC Number: | 230-237-7 |
| MDL number: | MFCD00002853 |
| PubChem Substance ID: | 24892003 |
Description
| Other Notes | Easily compare specifications for BIS-TRIS products with the BIS-TRIS specification table. |
Properties
| grade | SigmaUltra |
| assay | ≥98.0% (titration) |
| total impurities | ≤0.005% Phosphorus (P) |
| ≤0.1% Insoluble matter | |
| ign. residue | ≤0.1% |
| pH | 9.0-11.0 (20 °C, 1 M in H2O) |
| useful pH range | 5.8 - 7.2 |
| pKa (25 °C) | 6.5 |
| EQP level | Elite |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| anion traces | chloride (Cl-): ≤0.05% |
| sulfate (SO42-): ≤0.05% | |
| cation traces | Al: ≤0.0005% |
| Ca: ≤0.0005% | |
| Cu: ≤0.0005% | |
| Fe: ≤0.0005% | |
| K: ≤0.005% | |
| Mg: ≤0.0005% | |
| NH4+: ≤0.05% | |
| Na: ≤0.005% | |
| Pb: ≤0.001% | |
| Zn: ≤0.0005% |
