T3253

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T3253

Sigma

 

Trizma® hydrochloride

reagent grade, ≥99.0% (redox titration), crystalline

Synonym:TRIS HCl, TRIS hydrochloride, Tris(hydroxymethyl)aminomethane hydrochloride
CAS Number:1185-53-1
Linear Formula:NH2C(CH2OH)3 · HCl
Molecular Weight:157.60
Beilstein Registry Number:3675235
EC Number:214-684-5
MDL number:MFCD00012590
PubChem Substance ID:24900119

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Description

Frequently Asked QuestionsLive Chat and Frequently Asked Questions are available for this Product.
ApplicationThe 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.
Other NotesEasily compare specifications for Trizma HCl products with the Trizma HCl specification table.
Legal InformationTrizma is a registered trademark of Sigma-Aldrich Biotechnology LP and Sigma-Aldrich Co.

Properties

gradereagent grade
assay≥99.0% (redox titration)
formcrystalline
total impurities≤0.5% water (Karl Fischer)
colorclear colorless (40 % (w/w) in H2O) solution
  white powder
useful pH range7.0 - 9.0
pKa (25 °C)8.1
EQP levelElite
mp150-152 °C
cation tracesheavy metals (as Pb): ≤5 ppm
abs.A40%/290 ≤0.05

Safety

Personal Protective Equipmentdust mask type N95 (US), Eyeshields, Gloves
Hazard CodesXi
Risk Statements36/37/38
Safety Statements26-36
WGK Germany1

References

BeilsteinBeil. 4,H,304