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  Potassium carbonate  

 

Product: Potassium carbonate

Other names: Carbonate of potash, dipotassium carbonate, sub-carbonate of potash, pot carb (laboratory slang), pearl ash, potash, salt of tartar, salt of wormwood.

CAS No.: 584-08-7

Molecular Formula: K2CO3

Molecular Weight: 138.20

Density: 2.29

Melting point: 891°C

Solubility in water : 110.3 g/100 mL (20 °C), 149.2 g/100 mL (100 °C)

Solubility:  3.11 g/100 mL (25 °C) , methanol Insoluble in alcohol, acetone

Characteristics: White powder or granule. Easily deliquesced in the air. Easily soluble in water, presenting alkaline solution, not dissolved in ethanol and ether.

Applications: Mainly used in food leavening agent, preservative, dehydrating agent, PH value regulator and so on.

Food grade K2CO3

K 2CO 3(On dry basis) % ≥

99.0

Chlorides(KCl) % ≤

0.015

Sulfur compounds(K 2CO 4)(On dry basis) % ≤

0.01

Ferrum(Fe)(On dry basis) % ≤

0.0010

Water Insolubles(On dry basis) % ≤

0.02

Heavy Metal(as Pb)(mg/kg) ≤

10

Arsenic(As)(mg/kg) ≤

2

Loss after burning % ≤

0.60

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 – 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.