RDD009
Trizma® hydrochloride
anhydrous, free-flowing, Redi-Dri™, ≥99.0%
Synonym(s):
TRIS HCl, TRIS hydrochloride, Tris(hydroxymethyl)aminomethane hydrochloride, Tromethane hydrochloride
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About This Item
Linear Formula:
NH2C(CH2OH)3 · HCl
CAS Number:
Molecular Weight:
157.60
UNSPSC Code:
12161700
NACRES:
NA.25
PubChem Substance ID:
EC Number:
214-684-5
Beilstein/REAXYS Number:
3675235
MDL number:
grade
anhydrous
Quality Segment
product line
Redi-Dri™
assay
≥99.0%
form
powder
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
Other Notes
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.
Legal Information
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
Trizma is a registered trademark of Merck KGaA, Darmstadt, Germany
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Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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