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pH Buffer solutions are required to calibrate a pH controller with a pH sensor (probe).
pH Buffer solutions are required to calibrate a pH controller with a pH sensor (probe). The 3 most common pH buffer solutions are pH4, pH7 and pH10, and are usually a different colour to clearly distinguish between them. pH 4 is often red, pH7 green and pH10 blue. It is recommended to write the pH value on the cap of each bottle to prevent them getting mixed up.
| Sampling solution | pH 10.00, pH 4.00, pH 7.00 |
|---|---|
| Quantity | 1L, 500ML, 20L, 5L |
| Conditions to avoid | absorption of carbon dioxide, Excessive heat, strong sunlight |
| Incompatible materials | Acids, alkalis |
| Hazardous reactions | Hazardous polymerization will not occur |
| Boiling Point © | 100 |
| Flamability Limits (%) | Not flammable |
| Solubility in Water (g/L) | Soluble |
| Chemical stability | Stable |
