Tris is one of the most widely used buffers in molecular biology and cell culture due to its low toxicity, stability and buffering capacity. Our USP Grade is very similar in specifications to ultrapure Tris (T8600).
Purity: (same/more than)99.0%
Appearance: White, crystalline powder
pH (1M): 10.0-11.5
pKa: 8.0-8.4
Absorbance (260nm): (same/less than)0.06
Absorbance (280nm): (same/less than)0.05
Absorbance (290nm): (same/less than)0.02
Solubility (1M): Colorless, clear, complete
Loss on Drying: (same/less than)0.2%
Melting Point: 168-172C
Residue on Ignition: (same/less than)0.1%
Heavy Metals (Pb): (same/less than)0.0001%
Arsenic: (same/less than)0.0001%
Calcium: (same/less than)0.0001%
Copper: (same/less than)0.0001%
Iron: (same/less than)0.0005%
Magnesium: (same/less than)0.0001%
Insoluble Matter: (same/less than)0.005%
Conforms to USP
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