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Merck
CN

Specification Sheet

Product Name
Potassium phosphate dibasic suitable for HPLC, LiChropur, 99.0-101.0% (T)

Product Number
59678

Product Brand
sial

CAS Number
7758-11-4

Molecular Weight
174.18

Test

Specification

APPEARANCE (COLOR)Colorless or White
APPEARANCE (FORM)Powder or Crystals
TITRATION99.0 - 101.0 %
SUITABILITY TEST (HPLC)CORRESPONDS TO STANDARD
SOLUBILITY (COLOR)Colorless
SOLUBILITY (TURBIDITY)Clear
SOLUBILITY (METHOD)5% IN WATER
PH8.7 - 9.3
LOSS ON DRYING≤ 1.0 %
UV AbsorbanceUV-Absorption at 230 nm ≤ 0.150
UV AbsorbanceUV-Absorption at 240 nm ≤ 0.120
UV AbsorbanceUV-Absorption at 250 nm ≤ 0.110
UV AbsorbanceUV-Absorption at 310 nm ≤ 0.050
UV AbsorbanceUV-Absorption at 500 nm ≤ 0.020
RESIDUE (FILTER TEST)NO RESIDUE
FILTERTEST (METHOD)10 % IN H2O
RECOMMENDED RETEST PERIOD54 MONTHS