RPI TRIS Base Ultra Pure Powder, 1 Kilogram, Molecular Biology Grade, Buffer Component, [Tris (Hydroxymethyl) Aminomethane]

Description: Highly purified for use in molecular biology applications. Powdered buffer component for research laboratories and biotech manufacturing. Common Name: Tris (Hydroxymethyl) Aminomethane CAS Number: 77-86-1 Molecular Weight: 121.1 Chemical Formula: C4H11NO3 Harmonized Code: 2922190090 Solubility: Water Storage Temperature: Room Temperature Moisture: <0.2% Color: <20 APHA (colorless) Heavy Metals (as Pb): <0.0001% Insoluble Matter: <0.005% Heavy Metals: 5 ppm pKa (20°C): 8.1 ± 0.1 Specifications: Appearance: White Crystalline Powder Purity (Dried Basis By GC): ≥ 99.9 % Related Substances By GC: ≤ 0.1 % Water: ≤ 0.2 % Loss on Drying @ 105 oC, 3hrs: ≤ 1.0 % Melting Point: 170 - 172 oC APHA Color, 20% Aqueous solution: ≤ 20 Insoluble Matter: ≤ 0.005 % Heavy Metals (as Pb): ≤ 5 ppm Residue on Ignition: ≤ 0.5 % Iron (Fe): ≤ 5 ppm UV Absorbance @260nm, 10% Aqueous solution : ≤ 0.03 UV Absorbance @280nm, 10% Aqueous solution : ≤ 0.02 UV Absorbance @290nm, 40% solution in H2O: ≤ 0.20 UV Absorbance @430nm, 10% Aqueous solution : ≤ 0.004 Identification A: Pass Identification B: Pass Identification C: Pass pH (5% in water): 10.0 - 11.5 Arsenic (As): ≤ 1 ppm Chloride: ≤ 100 ppm Copper (Cu): ≤ 1 ppm DNase, RNase, protease: None Detected Lead: ≤ 1 ppm Magnesium: ≤ 1 ppm pH (1M in H2O): 10.5 - 11.5 Residual Solvents: Conforms to USP/EP Residue on Ignition (USP): ≤ 0.1 % Solubility (2M In H2O): Pass Country of Origin: USA Research or further manufacturing use only, not for food or drug use. The RPI brand has been serving the scientific community since 1970. Our ISO 9001:2015 and ISO GMP certifications are a testament to our dedication to quality.