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LC4910 Potassium carbonate
suitable for use as excipient exp Ph Eur,USP,E 501


Order number Packaging Quantity Price €
AC31910 Plastic bottle 5 kg Inquire
AC31910 Double PE Sack 25 kg Inquire


Product information
Grade Ph Eur,USP,E 501
Synonyms potash
Hill Formula CK2O3
Chemical formula K2CO3
HS Code 2836 40 00
EC number 209-529-3
Molar mass 138.21 g/mol
CAS number 584-08-7


Chemical and physical data
Solubility 1120 g/l (20 °C)
Melting point 891 °C
Molar mass 138.21 g/mol
Density 2.43 g/cm3 (20 °C)
Bulk density 750 kg/m3
pH value 11.5 – 12.5 (50 g/l, H2O, 20 °C)


Safety information according to GHS
Hazard Statement(s) H315: Causes skin irritation.
H319: Causes serious eye irritation.
H335: May cause respiratory irritation.
Precautionary Statement(s) P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal Word Warning
Hazard Pictogram(s)
RTECS TS7750000
Storage class 10 – 13 Other liquids and solids
WGK WGK 1 slightly water endangering
Disposal 14
Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535).


Safety information
R Phrase R 36/37/38
Irritating to eyes, respiratory system and skin.
S Phrase S 22-26
Do not breathe dust.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
Categories of danger irritant
Hazard Symbol



Toxicological data
LD 50 oral LD50 rat > 2000 mg/kg


Assay (acidimetric; calculated on dried substance) 99.5 – 100.5 %
Identity passes test
Appearance of solution passes test
Insoluble substances passes test
Chloride (Cl) ≤ 0.002 %
Sulphate (SO4) ≤ 0.01 %
Heavy metals (as Pb) ≤ 0.0005 %
As (Arsenic) ≤ 0.0002 %
Ca (Calcium) ≤ 0.005 %
Fe (Iron) ≤ 0.001 %
Hg (Mercury) ≤ 0.0001 %
Pb (Lead) ≤ 0.0005 %
Residual solvents (Ph.Eur./USP/ICH) excluded by manufacturing process
Loss on drying (180 °C) ≤ 0.5 %