1.05029

Potassium hydroxide

pellets for analysis (max. 0.05% Na) EMSURE^® ACS,Reag. Ph Eur

• Synonym(s): Potash caustic, Caustic potash
• Linear Formula: KOH
• CAS Number: 1310-58-3
• Molecular Weight: 56.11
• MDL number: MFCD00003553
• EC Index Number: 215-181-3

Properties

• grade: ACS reagent
• Quality Level: 300
• Agency: reag. Ph. Eur.
• vapor pressure: 1 mmHg ( 719 °C)
• product line: EMSURE^®
• Assay: 85.0-100.5% KOH basis
• form: solid
• potency: 333 mg/kg LD₅₀, oral (Rat)
• pH: 14 (20 °C, 56 g/L in H₂O)
• mp: 361 °C (lit.)
• anion traces: carbonate (K₂CO₃): ≤1.0%; chloride (Cl^-): ≤0.01%; phosphate (PO₄^3-): ≤0.0005%; silicate (as SiO₂): ≤0.005%; sulfate (SO₄^2-): ≤0.0005%
• cation traces: Al: ≤0.001%; Ca: ≤0.001%; Fe: ≤0.0005%; Mg: ≤0.002%; N: ≤0.002%; Na: ≤0.05%; Ni: ≤0.0005%; heavy metals (as Ag): ≤0.0005%; heavy metals (as Pb): ≤0.0005%
• storage temp.: 2-30°C
• SMILES string: [OH-].[K+]
• InChI: 1S/K.H2O/h;1H2/q+1;/p-1
• InChI key: KWYUFKZDYYNOTN-UHFFFAOYSA-M

Description

Analysis Note

Assay (KOH): 85.0 - 100.5 %
Assay (total alkalinity calc. as KOH): 85.0 - 100.5 %
Identity: passes test
Appearance of solution: passes test
Carbonate (KCO): ≤ 1.0 %
Chloride (Cl): ≤ 0.01 %
Phosphate (PO): ≤ 0.0005 %
Silicate (SiO): ≤ 0.005 %
Sulfate (SO): ≤ 0.0005 %
Total nitrogen (N): ≤ 0.0005 %
Heavy metals (as Ag): ≤ 0.0005 %
Heavy metals (as Pb): ≤ 0.0005 %
Al (Aluminium): ≤ 0.001 %
Ca (Calcium): ≤ 0.001 %
Fe (Iron): ≤ 0.0005 %
Mg (Magnesium): ≤ 0.002 %
Na (Sodium): ≤ 0.05 %
Ni (Nickel): ≤ 0.0005 %

Legal Information

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

Safety Information

• Pictograms: GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H290 - H302 - H314
• Precautionary Statements: P234 - P260 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Storage Class Code: 8B - Non-combustible, corrosive hazardous materials
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable