1.05134
Potassium sulfide
small lumps for analysis EMSURE®
Synonym(s):
Potassium sulfide, Potassium monosulfide
Sign In to View Organizational & Contract Pricing.
Select a Size
Change View
About This Item
Linear Formula:
(l · K2S)(m · K2Sx)(n · K2S2O3)
CAS Number:
NACRES:
NA.21
UNSPSC Code:
12352302
MDL number:
Grade:
reagent grade
Form:
solid
Solubility:
500 g/L
Quality Level
grade
reagent grade
product line
EMSURE®
form
solid
concentration
≥44% (complexometric K2S basis)
pH
13 (20 °C, 10 g/L in H2O)
mp
200-250 °C
solubility
500 g/L
density
1.65 g/cm3 at 20 °C
bulk density
1000‑1200 kg/m3
anion traces
sulfite (SO32-): ≤1%, thiosulfate (S2O32-): ≤20
cation traces
N: ≤0.01%
storage temp.
no temp limit
InChI
1S/4K.H2O3S2.S/c;;;;1-5(2,3)4;/h;;;;(H2,1,2,3,4);/q;;2*+1;;/p-2
InChI key
PFSBHPPVZHPSCB-UHFFFAOYSA-L
Analysis Note
Assay (complexometric, as K₂S): ≥ 44 %
Sulfite (SO₃): ≤ 1 %
Thiosulfate (S₂O₃): about 20
Total nitrogen (N): ≤ 0.01 %
Sulfite (SO₃): ≤ 1 %
Thiosulfate (S₂O₃): about 20
Total nitrogen (N): ≤ 0.01 %
Legal Information
EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany
signalword
Danger
hcodes
Hazard Classifications
Aquatic Acute 1 - Eye Dam. 1 - Skin Corr. 1B
supp_hazards
Storage Class
8A - Combustible, corrosive hazardous materials
wgk
WGK 3
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Related Content
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 1051341000 | 04022536061580 |
| 1051340250 | 04022536061573 |