SX0593

Sodium hydroxide

pellets, low in carbonate, Meets ACS Specifications GR ACS

• Synonym(s): Sodium hydroxide, Caustic Soda,Soda Lye, Caustic Soda, ‘Caustic soda’
• Linear Formula: NaOH
• CAS Number: 1310-73-2
• Molecular Weight: 40.00
• MDL number: MFCD00003548
• UNSPSC Code: 12352305
• EC Index Number: 215-185-5

Properties

• Product Name: Sodium Hydroxide Pellets, low in carbonate, Meets ACS Specifications GR ACS
• grade: ACS reagent
• Quality Level: 200
• vapor density: >1 (vs air)
• vapor pressure: <18 mmHg ( 20 °C); 3 mmHg ( 37 °C)
• assay: ≥97% NaOH basis
• form: pellets
• technique(s): electrophoresis: suitable
• impurities: ≤0.001% Nitrogen compounds (as N); ≤0.5% Sodium carbonate
• pH: >14 (20 °C, 100 g/L in H₂O)
• mp: 318 °C (lit.)
• solubility: 1090 g/L
• density: 2.13 g/cm³ at 20 °C
• anion traces: chloride (Cl^-): ≤0.005%; phosphate (PO₄^3-): ≤0.001%; sulfate (SO₄^2-): ≤0.003%
• cation traces: Ca: ≤0.005%; Fe: ≤0.001%; Hg: ≤0.1 ppm; K: ≤0.02%; Mg: ≤0.002%; Ni: ≤0.001%; heavy metals (as Ag): ≤0.002%
• shipped in: ambient
• storage temp.: room temp
• SMILES string: [OH-].[Na+]
• InChI: 1S/Na.H2O/h;1H2/q+1;/p-1
• InChI key: HEMHJVSKTPXQMS-UHFFFAOYSA-M

Description

Analysis Note

Assay (NaOH): 97.0% min
Calcium (Ca): 0.005% max
Chloride (Cl): 0.005% max
Heavy metals (as Ag): 0.002% max
Iron (Fe): 0.001% max
Magnesium (Mg): 0.002% max
Mercury (Hg): 0.1ppm max
Nickel (Ni): 0.001% max
Nitrogen compounds (as N): 0.001% max
Phosphate (PO4): 0.001% max
Potassium (K): 0.02% max
Sodium carbonate: 0.5% max
Sulfate (SO4): 0.003% max

Safety Information

• pictograms: GHS05
• signalword: Danger
• hcodes: H290,H314
• pcodes: 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: 8A - Combustible corrosive hazardous materials
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable