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1.19754

Supelco

di-Potassium hydrogen phosphate trihydrate

buffer substance for chromatography LiChropur™

Synonym(s):

di-Potassium hydrogen phosphate trihydrate, Potassium phosphate dibasic

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About This Item

Empirical Formula (Hill Notation):
HK2O4P · 3H2O
CAS Number:
16788-57-1
Molecular Weight:
228.22
MDL number:
MFCD00149926
UNSPSC Code:
12161703
EC Index Number:
231-834-5
NACRES:
NA.21
assay:
≥99.0% (acidimetric)
grade:
reagent grade
form:
solid

grade

reagent grade

Quality Level

100

assay

≥99.0% (acidimetric)

form

solid

technique(s)

HPLC: suitable

pH

9.2-9.4 (20 °C, 50 g/L in H2O)

mp

340 °C (anhydrous substance; decomposes)

bulk density

800 kg/m3

storage temp.

2-30°C

SMILES string

[K+].[K+].[P](=O)([O-])([O-])O.O.O.O

Analysis Note

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
Self-absorption (220 nm; 0.2 mol/l; 1 cm; water): ≤ 0.03
Self-absorption (215 nm; 0.2 mol/l; 1 cm; water): ≤ 0.11

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

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