Roztwór buforowy pH 9.00 (20°C) (kwas borowy/chlorek potasu/wodorotlenek sodu) w odniesieniu do NIST – SCHARLAU
Additional information
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| Producent: |
POBIERZ KARTĘ PRODUKTU
POBIERZ KARTĘ POZIOMU JAKOŚCI
POBIERZ KARTĘ CHARAKTERYSTYKI PRODUKTU
PRODUCENT: SCHARLAB
Buffer solution pH = 9,00 (20 °C)
– Density: ~ 1,00 g/cm3
– Solub. in water: (20 ºC): miscible
– Tariff number: 3822 00 00 00
– Applications: in buffer solutions.
SPECIFICATIONS
pH at 20 �ºC: 9,00
specification range: 8,99 – 9,01
uncertainty : ± 0,01
Composition per litre is 3,1g Boric Acid, 3,8g Potassium chloride and 0,8g Sodium hydroxide
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: 9,24
5: 9,16
10: 9,11
15: 9,05
20: 9,00
25: 8,95
30: 8,91
35: 8,88
40: 8,85
45: 8,82
50: 8,79
