Specification Sheet
Product Name Ammonium acetate,
for mass spectrometry, LiChropur, eluent additive for LC-MS
Product Number 73594
Product Brand SIAL
CAS Number 631-61-8
Molecular Weight 77.08
 
TEST SPECIFICATION
APPEARANCE (COLOR) Colorless or White
APPEARANCE (FORM) Crystals
TITRATION (T) NAOH 1M 99.0 - 101.0 % (calc. on dry substance)
LC-MS LC-MS in accordance
WATER ≤ 1 %
RESIDUE ON IGNITION ≤ 0.01 %
METAL TRACE ANALYSIS (ICP) CORRESPONDS TO REQUIREMENTS
ALUMINIUM (ICP) ≤ 1 mg/kg
BARIUM (ICP) ≤ 1 mg/kg
BISMUTH (ICP) ≤ 1 mg/kg
CALCIUM (ICP) ≤ 5 mg/kg
CADMIUM (ICP) ≤ 1 mg/kg
COBALT (ICP) ≤ 1 mg/kg
CHROMIUM (ICP) ≤ 1 mg/kg
COPPER (ICP) ≤ 1 mg/kg
IRON (ICP) ≤ 1 mg/kg
POTASSIUM (ICP) ≤ 5 mg/kg
LITHIUM (ICP) ≤ 1 mg/kg
MAGNESIUM (ICP) ≤ 1 mg/kg
MANGANESE (ICP) ≤ 1 mg/kg
MOLYBDENUM (ICP) ≤ 1 mg/kg
SODIUM (ICP) ≤ 5 mg/kg
NICKEL (ICP) ≤ 1 mg/kg
LEAD (ICP) ≤ 1 mg/kg
STRONTIUM (ICP) ≤ 1 mg/kg
ZINC (ICP) ≤ 1 mg/kg
ARSENIC TRACES (MHS-AAS) ≤ 0.1 mg/kg
TOTAL SULFUR AS SO4 (ICP) ≤ 10 mg/kg
CHLORIDE (CL) ≤ 5 mg/kg
NITRATE (NO3) ≤ 10 mg/kg
SOLUBILITY (METHOD) 1 M in H2O
APPEARANCE (SOLUTION) CLEAR COLORLESS
PH (SOLUTION) 6.2 - 7.5
RESIDUE (FILTER TEST) NO RESIDUE
UV - ABS. AT 260 NM ≤ 0.015
RECOMMENDED RETEST PERIOD 48 MONTHS