1.06466

Sodium hydroxide

monohydrate, 99.99 Suprapur^®

• Synonym(s): Sodium hydroxide monohydrate, Soda caustic
• Empirical Formula (Hill Notation): HNaO · xH₂O
• CAS Number: 12200-64-5
• Molecular Weight: 40.00 (anhydrous basis)
• UNSPSC Code: 12352305
• NACRES: NB.21

Properties

• product name: Sodium hydroxide monohydrate, 99.99 Suprapur^®
• 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

Description

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

Legal Information

SUPRAPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Pictograms: GHS05
• Signal Word: Danger
• Hazard Statements: H290 - H314
• Precautionary Statements: P234 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Storage Class Code: 8B - Non-combustible, corrosive hazardous materials
• WGK: WGK 1