PR1MA™  Tris Base Ultra Pure [Tris (Hydroxymethyl) Aminomethane]

Common Name: Tris (Hydroxymethyl) Aminomethane
CAS Number: 77-86-1
Molecular Weight: 121.1
Chemical Formula: C₄H₁₁NO₃
Solubility: Water
Storage Temp: Room Temperature

Highly purified for use in molecular biology applications.

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

Research or further manufacturing use only, not for food or drug use.

• 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 (Mg): ≤ 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