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Lab Chemicals
Good's Buffer (Biological Buffers)
POPSO BUFFER
POPSO BUFFER For Biochemistry
Piperazine-1,4-bis(2-hydroxypropanesulfonic acid) dihydrate; Piperazine-N,N'-bis(2-hydroxypropanesulfonic acid)
Article No.
5320B
Grade
For Biochemistry
Purity
97%
CAS No.
68189-43-5
Molecular Formula
C
1
0
H
2
2
N
2
O
8
S
2
.2H
2
O
Molecular Weight
398.5
H.S. Code
2933.5990
Shelf Life
60 Months
MSDS
DE
EN
FR
KO
PT
ES
TH
TR
Certificate of Analysis (COAs)
Physical Properties
Physical state at 20 °C
Solid
Colour
White powder
Melting point/ Freezing point [°C]
300 °C
Packings
50 g
(00050)
100 g
(00100)
Specifications
Appearance
White powder
Assay
Min 97%
Solubility (0.1 M in 1 M NaOH; 20°C)
Clear
pK (at 20°C)
7.85
Chloride (Cl)
Max 0.2%
Copper (Cu)
Max 0.005%
Sulphate (SO4)
Max 0.05%
Iron (Fe)
Max 0.005%
Calcium (Ca)
Max 0.005%
Potassium (K)
Max 0.01%
Cadmium (Cd)
Max 0.005%
Sodium (Na)
Max 0.1%
Cobalt (Co)
Max 0.005%
Nickel (Ni)
Max 0.005%
Lead (Pb)
Max 0.005%
Zinc (Zn)
Max 0.005%
Safety Information and Hazard Symbols
Safety Statement: 22-24/25
Revision Date :
13-Dec-2013