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Merck
CN

Specification Sheet

Product Name
Sodium phosphate monobasic suitable for HPLC, 99.0-101.0% (T)

Product Number
52074

Product Brand
sial

CAS Number
7558-80-7

Molecular Weight
119.98

Test

Specification

APPEARANCE (COLOR)Colorless or White
APPEARANCE (FORM)Powder or Crystals
TITRATION (T) NAOH 0.1M99.0 - 101.0 %
SUITABILITY TEST (HPLC)CORRESPONDS TO STANDARD
SOLUBILITY (COLOR)Colorless
SOLUBILITY (TURBIDITY)Clear
SOLUBILITY (METHOD)WATER 0.1G/ML 25C
PH4.0-4.5 (20 C, 10% in H2O)
UV AbsorbanceUV-Absorption at 210 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
RECOMMENDED RETEST PERIOD42 MONTHS