产品

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

SPECIFICATIONS
pH at 25ºC: 2,00
specification range: 1,99 - 2,01
uncertainty : ± 0,01
Composition per litre is 6,4 g Citric acid, 2,4 g Sodium hydroxide and 7,3 g Hydrochloric acid 37%.

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: 2,01
5: 2,01
10: 2,01
15: 2,00
20: 2,00
25: 2,00
30: 2,00
35: 2,00
40: 2,00
45: 2,00
50: 2,00