Specification Sheet
Product Name Sodium sulfate decahydrate,
puriss. p.a., crystallized, ≥99.0% (calc. based on dry substance, T)
Product Number 71970
Product Brand SIGALD
CAS Number 7727-73-3
Molecular Weight 322.20
 
TEST SPECIFICATION
APPEARANCE (COLOR) Colorless or White
APPEARANCE (FORM) Crystals
TITRATION (ION EXCHANGE) 99.0 - 101.0 % (calc. based on dry substance)
SOLUBILITY (COLOR) Colorless
SOLUBILITY (TURBIDITY) Clear
SOLUBILITY (METHOD) 0.5G IN 10ML WATER
PH 5.0 - 8.0
LOSS ON DRYING 53 - 57 % 130C
METAL TRACE ANALYSIS (ICP) CORRESPONDS TO REQUIREMENTS
CALCIUM (ICP) ≤ 20 mg/kg
CADMIUM (ICP) ≤ 5 mg/kg
COBALT (ICP) ≤ 5 mg/kg
CHROMIUM (ICP) ≤ 5 mg/kg
COPPER (ICP) ≤ 5 mg/kg
IRON (ICP) ≤ 5 mg/kg
POTASSIUM (ICP) ≤ 20 mg/kg
MAGNESIUM (ICP) ≤ 5 mg/kg
MANGANESE (ICP) ≤ 5 mg/kg
NICKEL (ICP) ≤ 5 mg/kg
LEAD (ICP) ≤ 5 mg/kg
ZINC (ICP) ≤ 5 mg/kg
CHLORIDE (CL) ≤ 5 mg/kg
TOTAL NITROGEN ≤ 5 mg/kg
PHOSPHATE (PO4) ≤ 10 mg/kg
RECOMMENDED RETEST PERIOD 72 MONTHS