SIGMA Trizma® base, Primary Standard and Buffer, =99.9% (titration), crystalline, 5 kg, Each

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Specifications Synonyms: 2-Amino-2-(hydroxymethyl)-1,3-propanediol; THAM; Tris base; Tris(hydroxymethyl)aminomethane; TrometamolFormula: NH2C(CH2OH)3Formula Weight: 121.14CAS No.: 77-86-1Purity: ≥99.9% (titration)General description: 2222A 40% (w/w) solution in water is clear and colorless.Protocols & Applications: Ensure correct concentrations of buffer solutions with the Buffer CalculatorOther Notes: Easily compare specifications for Trizma products with the Trizma specification table.Legal Information: Trizma is a registered trademark of Sigma-Aldrich Co. LLCPackaging: 1 kg in poly bottlePackaging: 25, 100, 250, 500 g in poly bottlePackaging: 5, 10, 25, 50 kg in poly drumAbs.: A40%/290 ≤0.05Assay: ≥99.9% (titration)BP: 219-220°C/10 mmHg(lit.)Cation Traces: heavy metals (as Pb): ≤2 ppmColor: whiteDescription: aminopeptidase substrateForm: crystallineImpurities: ≤0.2% water (Karl Fischer)MP: 167-172°C(lit.)pH Range: 7 - 9pKa (25°C): 8.1Quality Level: ELITEUseful pH Range: 7 - 9