Specification Sheet
Product Name Sodium dodecyl sulfate solution,
BioUltra, for molecular biology, 20% in H2O
Product Number 05030
Product Brand SIGMA
CAS Number 151-21-3
Molecular Weight 288.38
 
TEST SPECIFICATION
APPEARANCE (COLOR) Colorless
APPEARANCE (FORM) Liquid
TITRATION (ION EXCHANGE) 19 - 21 %
DENSITY D20/4 1.020 - 1.040
METAL TRACE ANALYSIS (ICP) CORRESPONDS TO REQUIREMENTS
ALUMINIUM (ICP) ≤ 1.0 mg/kg
BARIUM (ICP) ≤ 1.0 mg/kg
BISMUTH (ICP) ≤ 1.0 mg/kg
CALCIUM (ICP) ≤ 5.0 mg/kg
CADMIUM (ICP) ≤ 1.0 mg/kg
COBALT (ICP) ≤ 1.0 mg/kg
CHROMIUM (ICP) ≤ 1.0 mg/kg
COPPER (ICP) ≤ 1.0 mg/kg
IRON (ICP) ≤ 1.0 mg/kg
POTASSIUM (ICP) ≤ 20 mg/kg
LITHIUM (ICP) ≤ 1.0 mg/kg
MAGNESIUM (ICP) ≤ 1.0 mg/kg
MANGANESE (ICP) ≤ 1.0 mg/kg
MOLYBDENUM (ICP) ≤ 1.0 mg/kg
NICKEL (ICP) ≤ 1.0 mg/kg
LEAD (ICP) ≤ 1.0 mg/kg
STRONTIUM (ICP) ≤ 1.0 mg/kg
ZINC (ICP) ≤ 1.0 mg/kg
ARSENIC TRACES (MHS-AAS) ≤ 0.1 mg/kg
CHLORIDE (CL) ≤ 50 mg/kg
PHOSPHATE (PO4) ≤ 1.0 mg/kg
EXTRANEOUS ACTIVITIES DNAses, RNAses, Proteases, Phosphatases Not Detectable
SOLUBILITY (METHOD) Neat
APPEARANCE (SOLUTION) CLEAR COLORLESS
RESIDUE (FILTER TEST) NO RESIDUE
UV - ABS. AT 260 NM ≤ 0.5
UV - ABS. AT 280 NM ≤ 0.3
RECOMMENDED RETEST PERIOD 42 MONTHS