Roztwór buforowy pH 3.00 (20°C) (kwas orto-fosforowy/wodorotlenek sodu) w odniesieniu do NIST – SCHARLAU
Additional information
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POBIERZ KARTĘ PRODUKTU
POBIERZ KARTĘ POZIOMU JAKOŚCI
POBIERZ KARTĘ CHARAKTERYSTYKI PRODUKTU
PRODUCENT: SCHARLAB
Buffer solution pH = 3,00 (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: 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. This pH buffer solution is traceable to Standard Reference Material from NIST.
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
