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Sigma-Aldrich

Trizma® hydrochloride

BioXtra, pH 3.5-5.0 (0.5 M in H2O), ≥99.0% (titration)

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:
1185-53-1
Molecular Weight:
157.60
Beilstein:
3675235
EC Number:
214-684-5
MDL number:
MFCD00012590
UNSPSC Code:
12352104
PubChem Substance ID:
24900398
NACRES:
NA.25

product line

BioXtra

Quality Level

400

Assay

≥99.0% (titration)

form

powder

impurities

Insoluble matter, passes filter test

ign. residue (900 °C)

≤0.2% (as SO4)

loss

≤0.2% loss on drying, 110°C

pH

3.5-5.0 (0.5 M in H2O)

useful pH range

7.0-9.0

pKa (25 °C)

8.1

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Other Notes

Easily compare specifications for Trizma HCl products with the Trizma HCl specification table.
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

Trizma is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000439130
0000439129
0000437497
0000439128
0000437496

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