产品

- Density: ~ 1,00 g/cm3
- Solub. in water: (20 ºC): miscible
- Tariff number: 3822 00 00 00

SPECIFICATIONS
pH at 20 ºC: 3,00
specification range: 2,99 - 3,01
uncertainty : ± 0,01
Composition per litre is 1,2 g of ortho-Phosphoric acid concentrated and 11,2 g of Potassium dihydrogen phosphate.

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.
T (°C): pH
0: 2,96
5: 2,96
10: 2,97
15: 2,98
20: 3,00
25: 3,01
30: 3,01
35: 3,01
40: 3,01
45: 3,01
50: 3,01