Certificate Of Analysis
Product Name Cobalt(II) acetate tetrahydrate,
99.999% trace metals basis
Product Number 437875
Product Brand ALDRICH
CAS Number 6147-53-1
Molecular Formula (CH3COO)2Co · 4H2O
Molecular Weight 249.08
Appearance (Color) Conforms to Requirements Light Red
  Pink to Red  
Appearance (Form) Conforms to Requirements Powder
  Powder, Granules and/or Chunks  
Infrared spectrum Conforms to Structure Conforms
Complexometric EDTA (% Co) 22.4 - 24.8 % 22.9 %
ICP: Confirms Cobalt Component Confirmed Conforms
Trace Metal Analysis ≤20.0 ppm 15.6 ppm
Aluminum (Al) ppm 0.3 ppm
Calcium (Ca) ppm 0.5 ppm
Chromium (Cr) ppm 0.3 ppm
Iron (Fe) ppm 2.0 ppm
Magnesium (Mg) ppm 0.2 ppm
Manganese (Mn) ppm 0.8 ppm
Nickel (Ni) ppm 8.7 ppm
Titanium (Ti) ppm 0.9 ppm
Vanadium (V) ppm 0.7 ppm
Zinc (Zn) ppm 1.2 ppm
Purity Meets Requirements Meets Requirements
  >99.999% Purity Based On Trace Metals Analysis  
Specification Date: MAR 2010
Date of QC Release: MAR 2010
Print Date: MAR 30 2010