Identification
Taric code: 3822 00 00
Applications
in buffer solutions.
Specifications
pH at 20 ºC…………………………………………..9,00
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
T (°C)………………………………………pH
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
Packaging
- 1000 ml
Physical data
• Density: ~ 1,00 g/cm3
• Solub. in water: (20 ºC): miscible
• pH(H2O, 20 ºC) 9,0