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Lab Chemicals
HPLC Buffer Salts
POTASSIUM PHOSPHATE DIBASIC ANHYDROUS
POTASSIUM PHOSPHATE DIBASIC ANHYDROUS For HPLC
Dipotassium hydrogenphosphate; Dipotassium phosphate; sec.-Potassium phosphate
Article No.
05428
Grade
For HPLC
Purity
99%
CAS No.
7758-11-4
Molecular Formula
K
2
HPO
4
Molecular Weight
174.2
H.S. Code
2835.2400
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 crystalline
Odour
Odorless
pH value
8.8
Melting point/ Freezing point [°C]
>465°C
Decomposition point [°C]
>465°C
Density [g/cm3]
2.338
Solubility in water [% weight]
1600 g/l (20°C)
Packings
500 g
(00500)
Specifications
Appearance
White hygroscopic crystalline powder
Assay
Min 99%
Solubility (0.1 g/mL in water; 25°C)
Complete, colourless
pH (10% solution in water)
8.5 - 9.6
Loss on drying (at 105°C)
Max 1.0%
UV absorbance (10% in water)
-
at 230 nm
Max 0.15
at 240 nm
Max 0.12
at 250 nm
Max 0.11
at 310 nm
Max 0.05
at 500 nm
Max 0.02
Safety Information and Hazard Symbols
Safety Statement: 22-24/25
Revision Date :
11-Jun-2018