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Specifications Synonyms: TRIS HCl; TRIS hydrochloride; Tris(hydroxymethyl)aminomethane hydrochlorideFormula: NH2C(CH2OH)3 · HClFormula Weight: 157.60CAS No.: 1185-53-1Purity: ≥99.0% (titration)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.Other Notes: Easily compare specifications for Trizma HCl products with the Trizma HCl specification table.Legal Information: Trizma is a registered trademark of Sigma-Aldrich Co. LLCPackaging: 1 kg in poly bottlePackaging: 100, 250, 500 g in poly bottlePackaging: 5, 10, 25, 50 kg in poly drumAbs.: A40%/290 ≤0.05Assay: ≥99.0% (titration)Cation Traces: heavy metals (as Pb): ≤5 ppmColor: whiteForm: crystallineGrade: reagent gradeImpurities: ≤0.5% water (Karl Fischer)MP: 150-152°CpKa (25°C): 8.1Quality Level: ELITESolubility: H2O: soluble, clear, colorlessUseful pH Range: 7.0 - 9.0
