1.06395

Sodium carbonate

anhydrous 99.999 Suprapur^®

• Synonym(s): anhydrous soda, Calcined soda, Carbonic acid disodium salt, Soda ash
• Linear Formula: Na₂CO₃
• CAS Number: 497-19-8
• Molecular Weight: 105.99
• Beilstein/REAXYS Number: 4154566
• MDL number: MFCD00003494
• UNSPSC Code: 12352302
• EC Index Number: 207-838-8
• NACRES: NA.21

Properties

• grade: for inorganic trace analysis
• Quality Level: 100
• assay: 99.999%
• form: powder
• potency: 4090 mg/kg LD₅₀, oral (Rat)
• pH: 11.16 (25 °C, 4 g/L in H₂O)
• mp: 851 °C (lit.)
• solubility: 212.5 g/L
• density: 2.53 g/cm³ at 20 °C
• bulk density: 1100 kg/m³
• storage temp.: 2-30°C
• SMILES string: O=C(O[Na])O[Na]
• InChI: 1S/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
• InChI key: CDBYLPFSWZWCQE-UHFFFAOYSA-L

Description

Application

• A mixed separation-immobilization method for soluble salts removal and stabilization of heavy metals in municipal solid waste incineration fly ash.: Details a novel method using sodium carbonate for stabilizing heavy metals in waste ash, improving environmental safety and management of industrial by-products (Atanes et al., 2019).

Biochem/physiol Actions

Buffer component, may be used for the removal of peripheral membrane proteins.

Analysis Note

Purity (metallic): ≥ 99.999 %
Assay (acidimetric): ≥ 99.5 %
Chloride (Cl): ≤ 10 ppm
Phosphate (PO₄): ≤ 0.05 ppm
Silicate (SiO₂): ≤ 5 ppm
Sulfate (SO₄): ≤ 10 ppm
Al (Aluminium): ≤ 0.05 ppm
As (Arsenic): ≤ 0.1 ppm
Ba (Barium): ≤ 5.0 ppm
Ca (Calcium): ≤ 0.10 ppm
Cd (Cadmium): ≤ 0.005 ppm
Ce (Cerium): ≤ 0.010 ppm
Co (Cobalt): ≤ 0.005 ppm
Cr (Chromium): ≤ 0.010 ppm
Cu (Copper): ≤ 0.005 ppm
Eu (Europium): ≤ 0.010 ppm
Fe (Iron): ≤ 0.05 ppm
Hg (Mercury): ≤ 0.05 ppm
K (Potassium): ≤ 1.0 ppm
La (Lanthanum): ≤ 0.010 ppm
Li (Lithium): ≤ 0.5 ppm
Mg (Magnesium): ≤ 0.10 ppm
Mn (Manganese): ≤ 0.010 ppm
Ni (Nickel): ≤ 0.020 ppm
Pb (Lead): ≤ 0.010 ppm
Sc (Scandium): ≤ 0.010 ppm
Sm (Samarium): ≤ 0.010 ppm
Sr (Strontium): ≤ 0.10 ppm
Tl (Thallium): ≤ 0.01 ppm
Y (Yttrium): ≤ 0.010 ppm
Yb (Ytterbium): ≤ 0.010 ppm
Zn (Zinc): ≤ 0.010 ppm

Legal Information

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

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H319
• pcodes: P264 - P280 - P305 + P351 + P338 - P337 + P313
• Hazard Classifications: Eye Irrit. 2
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable