Potassium carbonate sesquihydrate
Potassium carbonate sesquihydrate (CAS: 6381-79-9) is an inorganic salt with the formula K₂CO₃ · 1.5H₂O and a molecular weight of 165.23 g/mol. This white crystalline solid is a hydrated form of potassium carbonate, commonly used as a source of potassium and as a basic reagent in chemical synthesis. It serves as an essential chemical and a synthetic reagent in various industrial and laboratory applications, finding utility in the preparation of other potassium compounds and in processes requiring a mild alkali.
- IUPAC
- Carbonic acid, dipotassium salt, sesquihydrate (8CI) Dipotassium carbonate sesquihydrate Potash sesquihydrate Potassium carbonate (K2CO3) sesquihydrate Potassium carbonate 1.5-hydrate Potassium carbonate sesquihydrate
- Synonyms
- Carbonic acid, dipotassium salt, sesquihydrate (8CI)Dipotassium carbonate sesquihydratePotash sesquihydratePotassium carbonate (K2CO3) sesquihydratePotassium carbonate 1.5-hydratePotassium carbonate sesquihydrate
Chemical Synthesis
Utilised as a basic reagent and a potassium source in the synthesis of other chemical compounds. It can be employed in various organic and inorganic reactions where a moderately strong base is required.
Laboratory Reagent
Serves as a standard reagent in analytical and research laboratories. Its well-defined properties make it suitable for buffer preparation and general laboratory use.
Industrial Applications
Finds application in diverse industrial processes, including the manufacture of glass, detergents, and ceramics. It acts as a fluxing agent or a component in specialised formulations.
| Molecular weight | 165.23 |
|---|---|
| Linear formula | K2CO3 · 1.5H2O |
| Assay | 98.5-101.0% (ACS specification)99% |
| Grade | ACS reagent |
| Loss on drying | 14.0-16.5% loss on heating |
| Impurities tested | ≤0.001% N compounds≤0.004% S compounds (as SO42-)≤0.005% silica≤0.01% NH4OH pptd.≤0.01% insolubles |
Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
| Cation traces | Ca: ≤0.005%Fe: ≤5 ppmMg: ≤0.002%Na: ≤0.02%heavy metals (as Pb): ≤5 ppm |
| Anion traces | chloride (Cl-): ≤0.003%phosphate (PO43-): ≤0.001% |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Potassium carbonate sesquihydrate used for?
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Potassium carbonate sesquihydrate is used as a basic reagent in chemical synthesis, a laboratory reagent, and in various industrial applications such as glass and detergent manufacturing.
What are the CAS number and formula for Potassium carbonate sesquihydrate?
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The CAS number is 6381-79-9 and the chemical formula is K₂CO₃ · 1.5H₂O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Potassium carbonate sesquihydrate in ACS reagent grade with an assay of 98.5-101.0% (ACS specification), or 99%.
How should Potassium carbonate sesquihydrate be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. It is classified as a Warning, causing skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335).
Is Potassium carbonate sesquihydrate a controlled substance?
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The provided data does not indicate that Potassium carbonate sesquihydrate is a controlled substance.
How is Potassium carbonate sesquihydrate exported and shipped?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, handling export and shipping of Potassium carbonate sesquihydrate according to international regulations.
How can I request a quote or sample for Potassium carbonate sesquihydrate?
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Please contact our sales team through the website to request a quote or a sample of Potassium carbonate sesquihydrate.
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