Description
Description
Trizma Hydrochlorideanhydrous Free-Flowing Redi-Dri ≥99.0% 1 Kg
Synonym: TRIS HCl, TRIS hydrochloride, Tris(hydroxymethyl)aminomethane hydrochloride, Tromethane hydrochloride
- CAS Number 1185-53-1
- Linear Formula NH2C(CH2OH)3 · HCl
- Molecular Weight 157.60
- Beilstein/REAXYS Number 3675235
- EC Number 214-684-5
- MDL number MFCD00012590
- PubChem Substance ID 329824220
- NACRES NA.25
| grade | Redi-Dri |
| anhydrous | |
| assay | ≥99.0% |
| quality | free-flowing |
| impurities | ≤0.5% water (Karl Fischer) |
| color | white |
| useful pH range | 7.0 – 9.0 |
| pKa (25 °C) | 8.1 |
| mp | 150-152 °C |
| solubility | H2O: soluble, clear, colorless |
| absorption | ≤0.05 at 290 nm at 40% |
| SMILES string | Cl.NC(CO)(CO)CO |
| InChI | 1S/C4H11NO3.ClH/c5-4(1-6,2-7)3-8;/h6-8H,1-3,5H2;1H |
| InChI key | QKNYBSVHEMOAJP-UHFFFAOYSA-N |
Application
The pH values of all buffers are temperature and concentration dependent. For Tris buffers, pH increases about 0.03 unit per °C decrease in temperature, and decreases 0.03-0.05 unit per ten-fold dilution.
For precise applications, use a carefully calibrated pH meter with a glass/calomel combination electrode.
Documents
Safety Data Sheet
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