Tech Serve Solutions

Potassium carbonate sesquihydrate

CAS 6381-79-9K2CO3 · 1.5H2OAcids & Bases

Potassium carbonate sesquihydrate (CAS 6381-79-9), molecular formula K2CO3 · 1.5H2O, is a high-purity chemical supplied by Tech Serve Solutions for acids & bases applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.

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 aciddipotassium saltsesquihydrate (8CI) Dipotassium carbonate sesquihydrate Potash sesquihydrate Potassium carbonate (K2CO3) sesquihydrate Potassium carbonate 1.5-hydrate Potassium carbonate sesquihydrate
Potassium carbonate sesquihydrate
Acids & BasesBasesChemical SynthesisEssential ChemicalsInorganic BasesPotassium SaltsResearch EssentialsSaltsSynthetic Reagents More...
01 /Properties
Molecular weight165.23
Linear formulaK2CO3 · 1.5H2O
Assay98.5-101.0% (ACS specification)99%
GradeACS reagent
Loss on drying14.0-16.5% 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
02 /Safety & handling
Harmful / irritant
Harmful / irritant
Warning

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 equipmentdust 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 tracesCa: ≤0.005%Fe: ≤5 ppmMg: ≤0.002%Na: ≤0.02%heavy metals (as Pb): ≤5 ppm
Anion traceschloride (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.

03 /Identifiers & registry
CAS number
6381-79-9
PubChem substance
24854510
04 /Quality & supply

Documentation

Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS 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.

05 /Frequently asked questions

What is Potassium carbonate sesquihydrate?

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Potassium carbonate sesquihydrate (CAS 6381-79-9), molecular formula K2CO3 · 1.5H2O, is a high-purity chemical supplied by Tech Serve Solutions for acids & bases applications, to USP, BP and EP standards.

What grades of Potassium carbonate sesquihydrate does Tech Serve Solutions supply?

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Tech Serve Solutions supplies Potassium carbonate sesquihydrate in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.

What is the CAS number and molecular formula of Potassium carbonate sesquihydrate?

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Potassium carbonate sesquihydrate has CAS number 6381-79-9 and molecular formula K2CO3 · 1.5H2O. Full specifications appear in the table above and in the Certificate of Analysis.

What is the typical minimum order quantity and lead time for Potassium carbonate sesquihydrate?

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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.

Do you provide a Certificate of Analysis (CoA) with each shipment?

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Yes. Every batch of Potassium carbonate sesquihydrate ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.

How should Potassium carbonate sesquihydrate be stored?

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Store Potassium carbonate sesquihydrate in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.

What is Potassium carbonate sesquihydrate used for?

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Potassium carbonate sesquihydrate is used in acids & bases applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.

How do I request a quote for Potassium carbonate sesquihydrate?

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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.

Need Potassium carbonate sesquihydrate in a specific grade or volume?

Request a quote