Identification
Taric code: 3822 00 00
Applications
to fit pH of the reaction media, for calibrating pH-meters, analytical chemistry.
Specifications
pH at 20 °C………………………………………………………. 7,00
uncertainty ± 0,01
Composition per litre is 3,54g Potassium dihydrogen phosphate and 14,7g di-Sodium hydrogen phosphate. Contains preservative. 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.
T(°C)……………………………………………..pH
0………………………………………………… 7,13
5………………………………………………… 7,07
10………………………………………………. 7,05
15………………………………………………. 7,02
20………………………………………………. 7,00
25………………………………………………. 6,98
30………………………………………………. 6,98
35………………………………………………. 6,96
40………………………………………………. 6,95
45………………………………………………. 6,95
50………………………………………………. 6,95
Packaging
- 1000 ml
Physical data
- Density: 1,01 g/cm3
- Solub. in water: (20 ºC): miscible
- Melting point: -5 ºC
- Boiling point: 109 ºC
- pH(20 ºC) 7,00