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Merck
CN

Specification Sheet

Product Name
di-Sodium hydrogen phosphate dihydrate suitable for HPLC, LiChropur

Product Number
58087

Product Brand
sial

CAS Number
10028-24-7

Molecular Weight
177.99

Test

Specification

APPEARANCE (COLOR)Colorless or White
APPEARANCE (FORM)Crystals
TITRATION98.5 - 102.0 %
TITRATION (METHOD)BACK TITRATION
SUITABILITY TEST (HPLC)CORRESPONDS TO STANDARD
SOLUBILITY (COLOR)Colorless
SOLUBILITY (TURBIDITY)Clear
SOLUBILITY (METHOD)10% IN WATER
PH8.8 - 9.4
UV AbsorbanceUV-Absorption at 230 nm ≤ 0.100
UV AbsorbanceUV-Absorption at 260 nm ≤ 0.060
UV AbsorbanceUV-Absorption at 280 nm ≤ 0.040
UV AbsorbanceUV-Absorption at 320 nm ≤ 0.020
UV AbsorbanceUV-Absorption at 500 nm ≤ 0.020
RESIDUE (FILTER TEST)NO RESIDUE
FILTERTEST (METHOD)10 % in water