For further processing only. Others Tris Tris 188.8.131.52.2.1 crystallizate Tris 07613336133279 custom fill CustomBiotech product. Please contact your local representative. Will be supplied as "Tris-(hydroxymethyl)-aminomethane". Unit of measure is "kg". Tris 10153265103 Not Available Reagents, kits en Use Tris as a buffer in diagnostic reagents, especially in tests for aminotransferases or γ-glutamyltransferase. en Buffer for diagnostic tests, such as tests for aminotransferases. en Appearance: Colorless, odorless crystallizate Solubility: Clear, colorless solution in water (c=100 mg/mL), free of fuzz Flow properties: Passes Melting range: +168 to +171°C Conductivity (water, 1 μS, +25°C): ≤110 μS pH value (c=6 mg/mL, in water): 10.0-11.0 Tris (titrimetric, based on dry weight): 99.5-100.5% Water (K. Fischer): ≤0.2% Sulfate ash (with concentrated H2SO4 at +600°C): ≤0.05% Fe (AAS): ≤1 ppm As (AAS): ≤1 ppm Heavy metals (as Pb): ≤1 ppm Reducing substances (KMnO4, 0.002 mol/L): ≤3 mL/100 mg Acetone (GC): ≤0.05% Methanol (GC): ≤0.05% Cl (turbidimetric test with AgNO3): ≤20 ppm Bioburden: ≤100 CFU/g A300 (against water, c=100 mg/mL): ≤0.020 A405 (against water, c=100 mg/mL): ≤0.004 Stability: At +15 to +25°C within specification range for 24 months. Protect from light.