Potassium carbonate 584-08-7


Product Deail


Potassium carbonate

Another namePotash.

【Description】White granule or powder, hygroscopic, can absorb carbon dioxide and water when exposed to air, convert to potassium bicarbonate, relative density 2.428, melting point 891℃. Soluble in water, aqueous solution is alkaline, insoluble in ethanol and ether.

Test items

GR

AR

CP

Other

Assay(K2CO3) /%

≥99.5

≥99.0

≥98.0

Custom

Clarity of solution /#

≤2

≤3

≤5

Water insoluble /%

≤0.005

≤0.005

≤0.03

Loss on ignition /%

≤0.8

≤1.0

≤2.0

Chloride(Cl) /%

≤0.001

≤0.003

≤0.01

Sulfur compounds(as SO4) /%

≤0.002

≤0.003

≤0.01

Total nitrogen(N) /%

≤0.001

≤0.001

≤0.01

Phosphates and silicates(as SiO2) /%

≤0.004

≤0.005

≤0.02

Sodium(Na) /%

≤0.02

≤0.05

≤0.10

Magnesium(Mg) /%

≤0.000 5

≤0.002

≤0.005

Aluminum(Al) /%

≤0.005

-

-

Calcium(Ca) /%

≤0.002

≤0.002

≤0.02

Iron(Fe) /%

≤0.000 5

≤0.000 5

≤0.002

Copper(Cu) /%

≤0.000 5

≤0.000 5

≤0.001

Arsenic(As) /%

≤0.000 05

-

-

Lead(Pb) /%

≤0.000 5

≤0.000 5

≤0.001

UseUsed as analytical reagent; reference reagent; silicate solvents; carbon dioxide gas adsorbent; preparation of potassium salt; food additives; pharmaceutical excipients; glass products; desiccant.