1.05057

Kaliumdisulfid

for analysis EMSURE^®

• Synonym(e): Kaliumdisulfid, Kaliummetabisulfit
• Empirische Formel (Hill-System): K₂O₅S₂
• CAS-Nummer: 16731-55-8
• Molekulargewicht: 222.32
• UNSPSC Code: 12352302
• EC Index Number: 240-795-3
• NACRES: NA.21
• MDL number: MFCD00167605
• Assay: ≥96% (iodometric)
• Grade: reagent grade
• Form: solid
• Solubility: 450 g/L

Eigenschaften

• Quality Segment: 300
• grade: reagent grade
• product line: EMSURE^®
• assay: ≥96% (iodometric)
• form: solid
• potency: 2300 mg/kg LD₅₀, oral (Rat)
• impurities: ≤0.005% In water insoluble matter
• pH: 3.0-4.5 (20 °C, 50 g/L in H₂O)
• mp: 150 °C (decomposition)
• solubility: 450 g/L
• bulk density: 1000‑1300 kg/m³
• anion traces: chloride (Cl^-): ≤0.005%
• cation traces: As: ≤0.0001%, Cu: ≤0.001%, Fe: ≤0.0005%, Pb: ≤0.001%, Zn: ≤0.001%
• storage temp.: 2-30°C
• SMILES string: [K+].[K+].[S](=O)(=O)([S](=O)[O-])[O-]
• InChI: 1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
• InChI key: RWPGFSMJFRPDDP-UHFFFAOYSA-L

Beschreibung

Analysis Note

Gehalt (iodometrisch): ≥ 96 %
In Wasser unlösliche Anteile: ≤ 0,005 %
Chlorid (Cl): ≤ 0,005 %
As (Arsen): ≤ 0,0001 %
Cu (Kupfer): ≤ 0,001 %
Fe (Eisen): ≤ 0,0005 %
Pb (Blei): ≤ 0,001 %
Zn (Zink): ≤ 0,001 %

Legal Information

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

Sicherheitshinweise

• pictograms: GHS05,GHS07
• signalword: Danger
• hcodes: H318 - H335
• pcodes: P261 - P271 - P280 - P304 + P340 + P312 - P305 + P351 + P338 - P403 + P233
• Hazard Classifications: Eye Dam. 1 - STOT SE 3
• target_organs: Respiratory system
• supp_hazards: EUH031
• Lagerklasse: 13 - Non Combustible Solids
• wgk: WGK 1