Roztwór buforowy pH 9.26 (20°C) (winian disodu 10hydrat) – SCHARLAU
Additional information
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POBIERZ KARTĘ PRODUKTU
POBIERZ KARTĘ POZIOMU JAKOŚCI
POBIERZ KARTĘ CHARAKTERYSTYKI PRODUKTU
PRODUCENT: SCHARLAB
Buffer solution pH = 9,26 (20 °C)
– Density: 1,00 g/cm3
– Solub. in water: (20 ºC): miscible
– LD 50 (oral, rat): 2660 mg/kg (pure substance)
– Tariff number: 3822 00 00 00
– Applications: in buffer solutions.
SPECIFICATIONS
pH at 20 �ºC: 9,26
specification range: 9,25 – 9,27
uncertainty : ± 0,01
Composition per litre is 3,8 g di-Sodium tetraborate decahydrate tetraborate decahydrate.
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: 9,43
5: 9,41
10: 9,35
15: 9,30
20: 9,26
25: 9,21
30: 9,16
35: 9,10
40: 9,09
45: 9,07
50: 9,03
