Buffer solution pH = 4,00 (20 °C) (Potassium hydrogen phthalate)

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Packaging	Reference	Stock	My Price
x 250mL :: Plastic bottle	SO10040250	In stock	Buy

Other Packaging

Packaging	Reference	Stock	List Price
x 5 l :: Plastic container	SO1004005P	Check stock	Buy
x 500 ml :: Plastic bottle	SO10040500	Check stock	Buy
x 1 l :: Plastic bottle	SO10041000	Check stock	Buy

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Characteristic
Description : Buffer solution pH = 4.00
Type of packaging : Plastic bottle
Presentation : 250mL

- Density: 1,01 g/cm3
- Solub. in water: (20 ºC): miscible
- Tariff number: 3822 00 00 00
- Applications: This reference material is intended for the calibration of pH meters and electrodes used for pH measurement or as a control sample for measuring the pH value.

SPECIFICATIONS
pH at 20 ºC: 4,00
specification range: 3,99 - 4,01
uncertainty : ± 0,01
Composition per litre is 10,2 g Potassium hydrogen phthalate. 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.
T (°C): pH
0: 4,00
5: 4,00
10: 4,00
15: 4,00
20: 4,00
25: 4,01
30: 4,02
35: 4,03
40: 4,04
45: 4,05
50: 4,06