1.06466

Supelco

Sodium hydroxide monohydrate

99.99 Suprapur®

Synonym(s):
Soda caustic, Sodium hydroxide monohydrate
Empirical Formula (Hill Notation):
HNaO · xH2O
CAS Number:
Molecular Weight:
40.00 (anhydrous basis)

storage conditions

Store at +15°C to +25°C.

grade

for inorganic trace analysis

Quality Level

assay

99.99%

pH

14 (20 °C, 50 g/L in H2O)

solubility

1100 g/L

storage temp.

2-30°C

Related Categories

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 ppm

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