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791776 Sigma-Aldrich

Potassium carbonate

anhydrous, free-flowing, Redi-Dri, ACS reagent, ≥99%

  • CAS Number 584-08-7

  • Linear Formula K2CO3

  • Molecular Weight 138.21

  •  Beilstein/REAXYS Number 4267587

  •  EC Number 209-529-3

  •  MDL number MFCD00011382

  •  PubChem Substance ID 329768290

  •  NACRES NA.21

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Properties

Related Categories Adsorbents, Filter Aids and Drying Agents, Essential Chemicals, Other Drying Agents, Potassium Salts, Research Essentials,
Quality Level   100
grade   ACS reagent
  anhydrous
product line   Redi-Dri
assay   ≥99%
form   powder
quality   free-flowing
impurities   ≤0.005% silica
  ≤0.01% insolubles
pH   11-13 (25 °C, 138 g/L)
mp   891 °C (lit.)
anion traces   chloride (Cl-): ≤0.003%
  phosphate (PO43-): ≤0.001%
  sulfur compounds (as SO42-): ≤0.004%
cation traces   Ca: ≤0.005%
  Fe: ≤5 ppm
  Mg: ≤0.002%
  Na: ≤0.02%
  heavy metals (as Pb): ≤5 ppm
storage temp.   room temp
SMILES string   [K+].[K+].[O-]C([O-])=O
InChI   1S/CH2O3.2K/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
InChI key   BWHMMNNQKKPAPP-UHFFFAOYSA-L

Description

Packaging

1 kg in poly bottle

100, 500 g in poly bottle

2.5, 12 kg in poly drum

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
Target organs 
Respiratory system
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 1
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles

Articles

Enjoy the Free-flowing Experience - Redi-Dri™

What is the most frustrating moment you have experienced in the lab? Inadequate chemicals for the reaction? Or rock-solid material as you open your bottle when you only need a small amount? If you ha...
Keywords: Environmental

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Redi-Dri™ – The world of free-flowing hygroscopic products

The Redi-Dri™ packaging system eliminates the common issue of clumping that is noted with many hygroscopic salts and buffers and provides free-flowing, ready-to- use material at all times. Don’t wast...
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Redi-Dri™ – 뭉치고 덩어리지지 않는 시약의 세계

From our library of Related Content, Sigma-Aldrich presents Redi-Dri™ – 뭉치고 덩어리지지 않는 시약의 세계

Peer-Reviewed Papers
15

References

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