| grade | for analytical purposes |
| total impurities | ≤0.000003% KMnO4-reducing matter (as O) |
| evapn. residue | ≤0.0001% |
| refractive index | n20/D 1.34(lit.) |
| conductivity | ≤2 μS/cm |
| bp | 100 °C(lit.) |
| density | 1.000 g/mL at 3.98 °C(lit.) |
| anion traces | bromide (Br-): ≤0.01 mg/kg |
| | chloride (Cl-): ≤0.01 mg/kg |
| | iodide (I-): ≤0.01 mg/kg |
| | nitrate (NO3-): ≤0.01 mg/kg |
| | phosphate (PO4-): ≤0.01 mg/kg |
| | sulfate (SO42-): ≤0.01 mg/kg |
| cation traces | Al: ≤0.005 mg/kg |
| | Ba: ≤0.005 mg/kg |
| | Bi: ≤0.005 mg/kg |
| | Ca: ≤0.01 mg/kg |
| | Cd: ≤0.005 mg/kg |
| | Co: ≤0.005 mg/kg |
| | Cr: ≤0.005 mg/kg |
| | Cu: ≤0.005 mg/kg |
| | Fe: ≤0.005 mg/kg |
| | K: ≤0.01 mg/kg |
| | Li: ≤0.005 mg/kg |
| | Mg: ≤0.005 mg/kg |
| | Mn: ≤0.005 mg/kg |
| | Mo: ≤0.005 mg/kg |
| | NH4+: ≤0.05 mg/kg |
| | Na: ≤0.01 mg/kg |
| | Ni: ≤0.005 mg/kg |
| | Pb: ≤0.005 mg/kg |
| | Sr: ≤0.005 mg/kg |
| | Zn: ≤0.005 mg/kg |
