Standard for calibrating and checking accuracy of ORP/Redox electrodes. The ZoBell's ORP/Redox Standard Solution exhibits temperature correlation between 0 - 30°C. The standard value is dependent on the reference electrode type.

Formula: NaOH Formula Weight: 40.00 CAS No.: 1310-73-2 Density: 1.515 g/mL at 25 °C Packaging: 1 L in poly bottle Packaging: 25, 100, 500 mL in poly bottle Packaging: 4, 18 L in poly drum

Formula: NaClO Formula Weight: 74.44 CAS No.: 7681-52-9 Density: 1.206 g/mL at 25 °C Storage Temperature: 2-8°C Supplemental Hazard Statements: Contact with acids liberates toxic gas. Packaging: 1 L in poly bottle Packaging: 250 mL in poly bottle

pH: 11.0 - 11.5 (50 g/l, H2O, 20°C) Solubility: (20°C) soluble Boiling Point: >100°C (1013 hPa) Density: 1.35 g/cm3 (20°C)