| Product Name: | Potassium carbonate | Other Name: | Carbonic acid,potassium salt (1:2);Potassium carbonate (K2CO3);Carbonic acid,dipotassium salt;Pearl ash;Potassium carbonate (K2(CO3));Dipotassium carbonate;Potassium carbonate (2:1);Potash;Potassium carbonate;Salt of tartar;Sorb KX 35;FG;DCAD Plus;CLIMB;PX 1390-1;EF 80;LH 90;30095-94-4;1643774-52-0 |
| CAS No.: | 584-08-7 | Molecular Formula: | CH2O3.2K |
| InChIKeys: | InChIKey=ILOXEKOBBABVRN-UHFFFAOYSA-N | Molecular Weight: | 138.20600 |
| Exact Mass: | 137.91200 | EC Number: | 209-529-3|241-378-9 |
| UNII: | BQN1B9B9HA | ICSC Number: | 1588 |
| DSSTox ID: | DTXSID2036245 | Color/Form: | Colorless cubic crystals; hygroscopic|Granules or granular powder|White, deliquescent, granular, translucent powder |
| HScode: | 2836400000 | Categories: | Acidity Regulators |
| PSA: | 63.19000 | XLogP3: | -2.44700 |
| Appearance: | white powder or granules | Density: | 3″>2.29 g/cm3 |
| Melting Point: | 891 °C | Boiling Point: | 333.6ºC at 760 mmHg |
| Flash Point: | 111ºC | Water Solubility: | H2O: 1120 g/L (20 ºC) |
| Storage Conditions: | Store at RT. | Toxicity: | LD50 orally in rats: 1.87 g/kg, H. F. Smyth et al., Am. Ind. Hyg. Assoc. J. 30, 470 (1969) |
| Odor: | Odorless | Taste: | Alkaline taste |
| Experimental Properties: | Hygroscopic|Enthalpy of fusion: 27.60 kJ/mol at 899 °C|Decomposes on heating with CO2 loss.|Deliquesces in moist air|For more Other Experimental Properties (Complete) data for POTASSIUM CARBONATE (6 total), please visit the HSDB record page. |
Classification of the substance or mixture
Skin irritation, Category 2
Eye irritation, Category 2
Specific target organ toxicity â single exposure, Category 3
GHS label elements, including precautionary statements
| Pictogram(s) | ![]() |
|---|---|
| Signal word |
Warning |
| Hazard statement(s) |
H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation |
| Precautionary statement(s) | |
| Prevention |
P264 Wash … thoroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/… P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area. |
| Response |
P302+P352 IF ON SKIN: Wash with plenty of water/… P321 Specific treatment (see … on this label). P332+P317 If skin irritation occurs: Get medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P319 Get medical help if you feel unwell. |
| Storage |
P403+P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up. |
| Disposal |
P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal. |
Other hazards which do not result in classification
no data available
Precautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Dry. Separated from strong acids.Keep tightly closed.

