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LC4885 di-Potassium hydrogen phosphate trihydrate

buffer substance for chromatography

 

Order number Packaging Quantity Price €
AC31885 Glass bottle  250 g 35.775

 

Product information
Synonyms Potassium phosphate dibasic
Hill Formula HK2O4P * 3 H2O
Chemical formula K2HPO4 * 3 H2O
HS Code 2835 24 00
EC number 231-834-5
Molar mass 228.23 g/mol
CAS number 16788-57-1

 

Chemical and physical data
Solubility (20 °C) soluble
Melting point ca.340 °C (anhydrous substance),decomposes
Molar mass 228.23 g/mol
Bulk density 800 kg/m3
pH value 9.2 – 9.4 (50 g/l, H2O, 20 °C)

 

Safety information
Storageclass 10 – 13 Other liquids and solids
WGK WGK 1 slightly water endangering
Disposal 14
Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535).

 

Specifications
Assay (acidimetric) ≥ 99.0 %
pH-value (5 %; water) 9.2 – 9.4
Self-absorption
– 254 nm; 0.2 mol/l; 1 cm; water
≤ 0.01
– 220 nm; 0.2 mol/l; 1 cm; water ≤ 0.03
– 215 nm; 0.2 mol/l; 1 cm; water ≤ 0.11

 

≤ 0.02 %