碳酸钾 倍半水合物

K₂CO₃ · 1.5H₂O

165.23

209-529-3

24854510

Crystals of potassium carbonate sesquihydrate belong to the monoclinic crystal system and space group C2/c.

Potassium carbonate sesquihydrate can be used as a sorbent for the removal of CO₂ from flue gas in precombustion process. It may be employed as a base in the cross-coupling of benzene boronic acid with benzoyl chloride in the presence of deposited Pd catalysts to give benzophenone.

It may also be used as one of the reaction components in the preparation of:

• 1,2,3-triethylimidazolium
• 1,2,3-triethyl-4-methylimidazolium
• 2-ethyl-1,3,4-trimethylimidazolium

200

ACS reagent

98.5-101.0% (ACS specification)
99%

crystalline powder
crystals or granules
powder or chunks

≤0.001% N compounds
≤0.004% S compounds (as SO₄^2-)
≤0.005% silica
≤0.01% NH₄OH pptd.
≤0.01% insolubles

14.0-16.5% loss on heating

chloride (Cl^-): ≤0.003%
phosphate (PO₄^3-): ≤0.001%

Ca: ≤0.005%
Fe: ≤5 ppm
Mg: ≤0.002%
Na: ≤0.02%
heavy metals: ≤5 ppm (by ICP-OES)

O.O.O.[K+].[K+].[K+].[K+].[O-]C([O-])=O.[O-]C([O-])=O

1 kg in poly bottle

GHS07

Warning

H315 - H319 - H335

P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Respiratory system

11 - Combustible Solids

WGK 1