Specification Sheet
Product Name Potassium nitrate,
puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99%
Product Number 31263
Product Brand SIGALD
CAS Number 7757-79-1
Molecular Weight 101.10
 
TEST SPECIFICATION
ASSAY ≥ 99.0 %
PH 5.0 - 8.0
MATTER INSOLUBLE IN WATER ≤ 0.005 %
HEAVY METALS ≤ 5 ppm (by ICP-OES)
CALCIUM ≤ 0.001 %
COPPER ≤ 0.0005 %
IRON ≤ 2 ppm
MAGNESIUM ≤ 0.002 %
SODIUM ≤ 0.005 %
LEAD ≤ 0.0005 %
ZINC ≤ 0.0005 %
AMMONIUM (NH4+) ≤ 0.001 %
CHLORIDE (CL) ≤ 0.001 %
IODATE (IO3) ≤ 5 ppm
NITRITE (NO2) ≤ 0.001 %
PHOSPHATE (PO4) ≤ 5 ppm
RECOMMENDED RETEST PERIOD 42 MONTHS