ST60143 | Buffer Solution pH 4,00 (20°C)

CAS Number

Formula

Weight

Specifications
Composition
Citric Acid 1 hydrate 11.768 g
Sodium Hydroxide 50% sol. w/w 6 ml
Hydrochloric Acid 35% 3.96 ml
Preservative 1% 5 ml
Water (s.q.m) 1 l
pH Values Depending On Temperature T (°C)
0°C 0,05
5°C 0,04
10°C 0,02
15°C 0,01
25°C 0,01
30°C 0,01
35°C 0,01
40°C 0,01
50°C 0
pH at 20°C 3,98 - 4,02

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