Properties :
Grade : for molecular biology
Product line : BioUltra
Assay : ≥ 99.0% (T)
Total impurities :
  DNases, none detected
  RNases, none detected
  insoluble matter, passes filter test
  phosphatases, none detected
  proteases, none detected
  ≤ 0.001 % total nitrogen (N)
pH = 8.9-9.2 (25 °C, 0.5 M in H₂O)
Solubility H₂O : 0.5 M at 20 °C, clear, colorless
Anion traces :
  chloride (Cl^-): ≤ 10 mg/kg
  sulfate (SO₄^2-): ≤ 50 mg/kg
Cation traces :
  Al: ≤ 5 mg/kg
  As: ≤ 0.1 mg/kg
  Ba: ≤ 5 mg/kg
  Bi: ≤ 5 mg/kg
  Ca: ≤ 10 mg/kg
  Cd: ≤ 5 mg/kg
  Co: ≤ 5 mg/kg
  Cr: ≤ 5 mg/kg
  Cu: ≤ 5 mg/kg
  Fe: ≤ 5 mg/kg
  K: ≤ 50 mg/kg
  Li: ≤ 5 mg/kg
  Mg: ≤ 5 mg/kg
  Mn: ≤ 5 mg/kg
  Mo: ≤ 5 mg/kg
  Ni: ≤ 5 mg/kg
  Pb: ≤ 5 mg/kg
  Sr: ≤ 5 mg/kg
  Zn: ≤ 5 mg/kg
λ : 0.5 M in H₂O
UV absorption :
  λ: 260 nm A_max: 0.03
  λ: 280 nm A_max: 0.03