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1.06469 Supelco

Sodium hydroxide

pellets for analysis (max. 0.02% K) EMSURE® ACS,Reag. Ph Eur,ISO

Synonym: ‘Caustic soda’

  • CAS Number 1310-73-2

  • Linear Formula NaOH

  • Molecular Weight 40.00

  •  MDL number MFCD00003548

  •  EC Index Number 215-185-5

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Properties

Related Categories Acids & Bases, Bases, Chemical Synthesis, Inorganic Bases, Synthetic Reagents More...
Quality Level   300
grade   ACS reagent
  Reag. Ph. Eur.
  reag. ISO
vapor density   >1 (vs air)
vapor pressure   <18 mmHg ( 20 °C)
  3 mmHg ( 37 °C)
assay   99-100% (total alkilinity calculated as NaOH)
form   pellets
pH   >14 (20 °C, 100 g/L in H2O)
mp   318 °C (lit.)
solubility   water: 1090 g/L at 20 °C
density   2.13 g/cm3 at 20 °C
anion traces   carbonate (as Na2CO3): ≤0.5%
  chloride (Cl-): ≤0.0005%
  phosphate (PO43-): ≤0.0005%
  silicate (as SiO2): ≤0.001%
  sulfate (SO42-): ≤0.0005%
cation traces   Al: ≤0.0005%
  As: ≤0.0001%
  Ca: ≤0.0005%
  Cu: ≤0.0002%
  Fe: ≤0.0005%
  Hg: ≤0.00001%
  K: ≤0.020%
  Mg: ≤0.0005%
  Ni: ≤0.0005%
  Pb: ≤0.0005%
  Zn: ≤0.001%
  heavy metals (as Ag): ≤0.0005%
  heavy metals (as Pb): ≤0.0005%
SMILES string   [OH-].[Na+]
InChI   1S/Na.H2O/h;1H2/q+1;/p-1
InChI key   HEMHJVSKTPXQMS-UHFFFAOYSA-M
storage conditions   Store at +5°C to +30°C.

Description

Linkage

Replaces: SX0590; SX0590-20

Analysis Note

Assay (acidimetric,NaOH): 99 - 100 %
Assay (total alkalinity calc. as NaOH): 99 - 100 %
Identity: passes test
Appearance of solution: passes test
Carbonate (as Na₂CO₃): ≤ 0.5 %
Chloride (Cl): ≤ 0.0005 %
Phosphate (PO₄): ≤ 0.0005 %
Silicate (SiO₂): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.0005 %
Total nitrogen (N): ≤ 0.0003 %
Heavy metals (as Ag): ≤ 0.0005 %
Heavy metals (as Pb): ≤ 0.0005 %
Al (Aluminium): ≤ 0.0005 %
As (Arsenic): ≤ 0.0001 %
Ca (Calcium): ≤ 0.0005 %
Cu (Copper): ≤ 0.0002 %
Fe (Iron): ≤ 0.0005 %
Hg (Mercury): ≤ 0.00001 %
K (Potassium): ≤ 0.020 %
Mg (Magnesium): ≤ 0.0005 %
Ni (Nickel): ≤ 0.0005 %
Pb (Lead): ≤ 0.0005 %
Zn (Zinc): ≤ 0.001 %

Legal Information

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

Safety & Documentation

Safety Information

Symbol 
GHS05  GHS05
Signal word 
Danger
Hazard statements 
WGK Germany 
WGK 1
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles

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