Specification Sheet
Product Name Potassium acetate solution,
BioUltra, for molecular biology, 5 M in H2O
Product Number 95843
Product Brand SIGMA
CAS Number 127-08-2
Molecular Weight 98.14
 
TEST SPECIFICATION
APPEARANCE (COLOR) Colorless
APPEARANCE (FORM) Liquid
TITRATION (METHOD) NON AQUEOUS TITRATION
TITRATION (MOLARITY) 4.90 - 5.10 mol/l
DENSITY D20/4 1.205 - 1.225
METAL TRACE ANALYSIS (ICP) CORRESPONDS TO REQUIREMENTS
ALUMINIUM (ICP) ≤ 1 mg/kg
BARIUM (ICP) ≤ 1 mg/kg
BISMUTH (ICP) ≤ 1 mg/kg
CALCIUM (ICP) ≤ 20 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
LITHIUM (ICP) ≤ 1 mg/kg
MAGNESIUM (ICP) ≤ 5 mg/kg
MANGANESE (ICP) ≤ 1 mg/kg
MOLYBDENUM (ICP) ≤ 1 mg/kg
SODIUM (ICP) ≤ 1000 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
CHLORIDE (CL) ≤ 50 mg/kg
SULFATE (SO4) ≤ 5 mg/kg
EXTRANEOUS ACTIVITIES DNAses, RNAses, Proteases, Phosphatases Not Detectable
SOLUBILITY (METHOD) NEAT
APPEARANCE (SOLUTION) CLEAR COLORLESS
PH (SOLUTION) 7.0 - 9.0
RESIDUE (FILTER TEST) NO RESIDUE
UV - ABS. AT 260 NM ≤ 0.04
UV - ABS. AT 280 NM ≤ 0.02
RECOMMENDED RETEST PERIOD 48 MONTHS