Solución tampón pH = 7,00 (20 °C), coloreada de amarillo
| Packaging | Reference | Stock | My Price |
|---|---|---|---|
| x 250 ml :: Plastic bottle | SO20070250 | In stock  |
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Other Packaging
| Packaging | Reference | Stock | My Price |
|---|---|---|---|
| x 1 l :: Plastic bottle | SO20071000 | Buy |
- Density: ~ 1,005 g/cm3 - Solub. in water: (20 ºC): miscible - Tariff number: 3822 00 00 00 - Applications: This reference material is intended for the calibration of pH meters and electrodes used for pH measurement or as a control sample for measuring the pH value. SPECIFICATIONS pH at 20 ºC: 7,00 specification range: 6,99 - 7,01 uncertainty : ± 0,01 Composition per litre is 3,5 g Potassium dihydrogen phosphate and 12,5 g di-Sodium hydrogen phosphate. Contains preservative. Standard buffer solutions are prepared using gravimetric and volumetric procedures. The batch value is determined by measurement with a combination glass electrode against five-point calibration according to DIN 19268. This pH buffer solution is traceable to Standard Reference Material from NIST. 0: 7,13 5: 7,07 10: 7,05 15: 7,02 20: 7,00 25: 6,98 30: 6,98 35: 6,96 40: 6,95 45: 6,95 50: 6,95
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