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Sigma-Aldrich

Potassium (poly)sulfide

≥42% K2S basis

Synonym(s):

Potassium polysulfide

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About This Item

Linear Formula:
K2S/n
CAS Number:
37199-66-9
EC Number:
253-390-1
MDL number:
MFCD00148074
UNSPSC Code:
12352302
NACRES:
NA.22

Quality Level

100

form

solid

concentration

≥42% (K2S)

InChI

1S/K.H2S/h;1H2/q+1;

InChI key

ZOCLAPYLSUCOGI-UHFFFAOYSA-N

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Application

Potassium polysulfide shows high aqueous solubility and can act as high energy density half-cells for secondary electrochemical storage systems. It can be used as a sulfur source for synthesizing sulfur nanoparticles.

Signal Word

Danger

Hazard Statements

H252,H314,H335,H400

Hazard Classifications

Aquatic Acute 1 - Eye Dam. 1 - Self-heat. 2 - Skin Corr. 1B - STOT SE 3

Target Organs

Respiratory system

Supplementary Hazards

EUH031

Storage Class Code

4.2 - Pyrophoric and self-heating hazardous materials

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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