Sigma-Aldrich Sodium Hydroxide Monohydr.

Grade

for inorganic trace analysis

Quality Level

100

Assay

99.99%

Form

solid

Ph

14 (20 °C, 50 g/L in H₂O)

Solubility

1100 g/L

Storage Temp.

2-30°C

Inchi

1S/Na.2H2O/h;2*1H2/q+1;;/p-1

Inchi Key

JBJWASZNUJCEKT-UHFFFAOYSA-M

Related Categories

Salts

Analysis Note

Purity (metallic): ≥ 99.990 %
NaOH content: 67.0 - 69.0 %
Assay of sodium carbonate: ≤ 2.0 %
Chloride (Cl): ≤ 1 ppm
Phosphate (PO₄): ≤ 0.05 ppm
Silicate (as SiO₂): ≤ 5 ppm
Sulfate (SO₄): ≤ 10 ppm
Al (Aluminium): ≤ 0.05 ppm
As (Arsenic): ≤ 0.1 ppm
Ba (Barium): ≤ 10.0 ppm
Ca (Calcium): ≤ 0.50 ppm
Cd (Cadmium): ≤ 0.010 ppm
Ce (Cerium): ≤ 0.010 ppm
Co (Cobalt): ≤ 0.010 ppm
Cr (Chromium): ≤ 0.010 ppm
Cu (Copper): ≤ 0.010 ppm
Eu (Europium): ≤ 0.010 ppm
Fe (Iron): ≤ 0.05 ppm
Hg (Mercury): ≤ 0.01 ppm
K (Potassium): ≤ 2.0 ppm
La (Lanthanum): ≤ 0.010 ppm
Li (Lithium): ≤ 0.2 ppm
Mg (Magnesium): ≤ 0.10 ppm
Mn (Manganese): ≤ 0.010 ppm
Ni (Nickel): ≤ 0.010 ppm
Pb (Lead): ≤ 0.010 ppm
Sc (Scandium): ≤ 0.010 ppm
Sm (Samarium): ≤ 0.010 ppm
Sr (Strontium): ≤ 0.50 ppm
Tl (Thallium): ≤ 0.01 ppm
Y (Yttrium): ≤ 0.010 ppm
Yb (Ytterbium): ≤ 0.010 ppm
Zn (Zinc): ≤ 0.050 ppmSUPRAPUR is a registered trademark of Merck KGaA, Darmstadt, GermanyGHS05H290 - H314P234 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338