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Merck
CN

Specification Sheet

Product Name
Sodium hydroxide puriss. p.a., ACS reagent, reag. Ph. Eur., K ≤0.02%, ≥98%, pellets

Product Number
30620

Product Brand
sigald

CAS Number
1310-73-2

Molecular Weight
40.00

Test

Specification

CONTENT OF CARBONATE (T)sodium carbonate (Na2CO3) ≤ 1.0 %
ASSAY98.0 - 100.5 %
APPEARANCE OF SOLUTIONComplying
HEAVY METALS≤ 0.002 % (as Ag)
Miscellaneous Assaysilicate (as SiO2) ≤ 0.001 %
ALUMINIUM≤ 0.0005 %
ARSENIC≤ 0.0001 %
CALCIUM≤ 0.0005 %
COPPER≤ 0.0005 %
IRON≤ 5 ppm
MERCURY≤ 0.05 ppm
POTASSIUM≤ 0.02 %
MAGNESIUM≤ 0.0005 %
NICKEL≤ 0.0005 %
LEAD≤ 0.0002 %
ZINC≤ 0.0005 %
HEAVY METALS (PB) (ICP)≤ 5 ppm
CHLORIDE (CL)≤ 10 ppm
TOTAL NITROGEN≤ 0.0003 %
PHOSPHATE (PO4)≤ 0.0005 %
SULFATE (SO4)≤ 30 ppm