Potassium acetate - ≥99.98% metals basis, Rb<100 ppm,Cs<50 ppm , CAS No.127-08-2

CAS: 127-08-2 Cat. No.: P108327 Formula: CH3COOK Molecular Weight: 98.14 Beilstein Registry Number: 3595449 EC Number: 204-822-2
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GRADE & PURITY ≥99.98% metals basis Rb<100 ppm,Cs<50 ppm
Synonyms
Potassium ethanoate | Acetic acid potassium salt | Ethanoic acid potassium salt
Storage
Room temperature,Desiccated
Shipped In
Normal
★
Size
USA
Germany (EU)*
Price
Qty
1g
P108327-1g
2 In stock
—
$39.90
5g
P108327-5g
2 In stock
—
$139.90
Enter a quantity for the sizes you want to add.
🧪
Why this grade

≥99.98% metals basis, Rb<100 ppm,Cs<50 ppm for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,Desiccated Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 175 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Potassium ethanoate | Acetic acid potassium salt | Ethanoic acid potassium salt
Specifications & Purity
≥99.98% metals basis, Rb<100 ppm,Cs<50 ppm
Storage
Room temperature,Desiccated
Shipped In
Normal
Purity
≥99.98% metals basis
Names and Identifiers
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/528769496
Canonical Smiles
CC(=O)[O-].[K+]
IUPAC Name
potassium;acetate
InChIKey
SCVFZCLFOSHCOH-UHFFFAOYSA-M
INCHI
1S/C2H4O2.K/c1-2(3)4;/h1H3,(H,3,4);/q;+1/p-1
Isomeric SMILES
CC(=O)[O-].[K+]
WGK Germany
1
RTECS
AJ3325000
Molecular Weight
98.14
Beilstein
3595449
Reaxy-Rn
3595449
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=3595449&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

<<<<<<< HEAD Download SDS → ======= Download SDS → >>>>>>> release248-p3

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
SubclassCarboxylic acid derivatives
Intermediate Tree Nodes Carboxylic acid salts
Direct ParentAcetate salts
Alternative Parents Monocarboxylic acids and derivatives  Carboxylic acids  Organic potassium salts  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic acyclic compounds
Substituents Acetate salt - Organic alkali metal salt - Monocarboxylic acid or derivatives - Carboxylic acid - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organic potassium salt - Organic salt - Organooxygen compound - Carbonyl group - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as acetate salts. These are organic compounds containing acetic acid as its acid component.
External Descriptors potassium salt
3D Structure
Interactive Chemical Structure Model





Certificates (CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

8 results found

Lot NumberCertificate TypeDateItem
H2631638H2631638Certificate of AnalysisSep 08, 2026 P108327
H2631645H2631645Certificate of AnalysisSep 08, 2026 P108327
C2520454C2520454Certificate of AnalysisMar 31, 2025 P108327
C2520455C2520455Certificate of AnalysisMar 31, 2025 P108327
D2627019D2627019Certificate of AnalysisMar 31, 2025 P108327
D2426232D2426232Certificate of AnalysisMay 10, 2024 P108327
D2426233D2426233Certificate of AnalysisMay 10, 2024 P108327
C2209239C2209239Certificate of AnalysisJun 23, 2021 P108327
Chemical and Physical Properties
SensitivityHygroscopic
Melt Point(°C)292°C
Molecular Weight98.140 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Exact Mass97.977 Da
Monoisotopic Mass97.977 Da
Topological Polar Surface Area40.100 Ų
Heavy Atom Count5
Formal Charge0
Complexity34.600
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count2
Documents & Articles
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

Frequently Asked Questions

What does the trace-metals specification mean?
This product is specified at ≥99.98% on a trace-metals basis. That figure describes metallic impurity content rather than overall chemical assay, so it is the relevant specification for ICP-MS, semiconductor and battery applications. Lot-specific values are stated on the Certificate of Analysis.
How should this product be stored?
Store at room temperature, desiccated. Keep the container tightly closed with desiccant — the material is moisture-sensitive.
How is this product shipped?
This product ships under standard ambient conditions. No temperature-controlled packaging is required.
What are the CAS number, molecular formula and molecular weight?
The CAS Number is 127-08-2, the molecular formula is CH3COOK, and the molecular weight is 98.14 g/mol. InChIKey SCVFZCLFOSHCOH-UHFFFAOYSA-M.
What documentation is provided?
Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.

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