Specification Sheet
Product Name Imidazole,
puriss. p.a., ≥99.5% (GC)
Product Number 56750
Product Brand SIAL
CAS Number 288-32-4
Molecular Weight 68.08
 
TEST SPECIFICATION
APPEARANCE (COLOR) White to Faint Yellow
APPEARANCE (FORM) Powder or Crystals or Flakes
TITRATION (NT) HCLO4 0.1M 99.50 - 100.50 %
PURITY (GC AREA %) ≥ 99.50 %
MELTING POINT 88 - 91 C
SOLUBILITY (COLOR) Colorless
SOLUBILITY (TURBIDITY) Clear
SOLUBILITY (METHOD) 0.5G IN 10ML WATER
PH 9.5 - 11.0
WATER ≤ 0.5 %
RESIDUE ON IGNITION ≤ 0.1 %
INFRARED SPECTRUM CONFORMS TO STRUCTURE
METAL TRACE ANALYSIS (ICP) CORRESPONDS TO REQUIREMENTS
CALCIUM (ICP) ≤ 10 mg/kg
CADMIUM (ICP) ≤ 5.0 mg/kg
COBALT (ICP) ≤ 5.0 mg/kg
CHROMIUM (ICP) ≤ 5.0 mg/kg
COPPER (ICP) ≤ 5.0 mg/kg
IRON (ICP) ≤ 5.0 mg/kg
POTASSIUM (ICP) ≤ 50 mg/kg
MAGNESIUM (ICP) ≤ 5.0 mg/kg
MANGANESE (ICP) ≤ 5.0 mg/kg
SODIUM (ICP) ≤ 50 mg/kg
NICKEL (ICP) ≤ 5.0 mg/kg
LEAD (ICP) ≤ 5.0 mg/kg
ZINC (ICP) ≤ 5.0 mg/kg
TOTAL SULFUR AS SO4 (ICP) ≤ 50 mg/kg
CHLORIDE (CL) ≤ 50 mg/kg
RECOMMENDED RETEST PERIOD 54 MONTHS