Potassium phosphate tribasic - AR , CAS No.7778-53-2

CAS: 7778-53-2 Cat. No.: P104107 Formula: K3PO4 Peso molecolare: 212.27 Numero EC: 231-907-1
Disponibile su ordine
GRADE & PURITY AR ? Analytical Reagent grade — high-purity chemicals meeting strict assay limits for lab analysis. Use when accuracy matters and trace impurities could skew results.
Synonyms
potassium phosphate, tribasic, n-hydrate | potassium-phosphate | 16D59922JU | POTASSIUM PHOSPHATE, TRIBASIC ANHYDROUS | DTXSID3043994 | FT-0688089 | Tripotasium phosphate | A915279 | Tripotassium orthophosphate | tri-Potassium orthophosphate | Potassium p
Storage
Room temperature,Argon charged,Desiccated
Shipped In
Normal
★
Size
Germania (EU)
USA*
Price
Qty
500g
P104107-500g
Su ordinazione · 8–12 settimane

33,76€

38,96€
Salva 5,21 € (13.36%)
6×500g
P104107-6×500g
Su ordinazione · 8–12 settimane
188,21€
20×500g
P104107-20×500g
Su ordinazione · 8–12 settimane
497,13€
Enter a quantity for the sizes you want to add.
🧪
Why this grade

AR AR for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,Argon charged,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 71 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Panoramica

Potassium phosphate tribasic is a reagent with a very high buffering capacity. It is widely used in molecular biology, biochemistry, and chromatography, used for the extraction of keratohyalin protein from bovine tissue, to study the effects of freezing and thawing on the stability of proteins sensitive to conformational changes. It is used as a food additive for its properties as an emulsifier, foaming agent, and whipping agent.

Specifications

Sinonimi
potassium phosphate, tribasic, n-hydrate | potassium-phosphate | 16D59922JU | POTASSIUM PHOSPHATE, TRIBASIC ANHYDROUS | DTXSID3043994 | FT-0688089 | Tripotasium phosphate | A915279 | Tripotassium orthophosphate | tri-Potassium orthophosphate | Potassium p
Specifiche e purezza
AR
Condizioni di conservazione di stoccaggio
Room temperature,Argon charged,Desiccated
Spedito in
Normal
Grado
AR
Nomi e identificatori
Sorrisi canonici[O-]P(=O)([O-])[O-].[K+].[K+].[K+]
IUPAC Nametripotassium;phosphate
InChIKeyLWIHDJKSTIGBAC-UHFFFAOYSA-K
INCHI1S/3K.H3O4P/c;;;1-5(2,3)4/h;;;(H3,1,2,3,4)/q3*+1;/p-3
Isomeri SMILES [O-]P(=O)([O-])[O-].[K+].[K+].[K+]
CAS alternativo 115281-28-2
Peso molecolare 212.27
Reaxy-Rn 11343346
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=11343346&ln=

Documentazione

📋 Safety Data Sheet (SDS)

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

Download SDS →

✅ 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

KingdomInorganic compounds
SuperclassMixed metal/non-metal compounds
ClasseAlkali metal oxoanionic compounds
SubclassAlkali metal phosphates
Intermediate Tree Nodes Not available
Direct ParentAlkali metal phosphates
Alternative Parents Inorganic salts  Inorganic oxides  
Molecular FrameworkNot available
Substituents Alkali metal phosphate - Inorganic oxide - Inorganic salt
DescrizioneThis compound belongs to the class of inorganic compounds known as alkali metal phosphates. These are inorganic compounds in which the largest oxoanion is phosphate, and in which the heaviest atom not in an oxoanion is an alkali metal.
External Descriptors Not available
Struttura 3D
Modello di struttura chimica interattiva





Certificati (CoA, COO, BSE/TSE e tabella di analisi)
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.

17 results found

Lot NumberCertificate TypeDataOggetto
F2610465Certificate of AnalysisMay 06, 2026 P104107
F2610464Certificate of AnalysisMay 06, 2026 P104107
L2522559Certificate of AnalysisDec 31, 2025 P104107
D2623707Certificate of AnalysisJun 19, 2025 P104107
F2525527Certificate of AnalysisJun 19, 2025 P104107
F2525526Certificate of AnalysisJun 19, 2025 P104107
K2425519Certificate of AnalysisNov 29, 2024 P104107
K2425520Certificate of AnalysisNov 29, 2024 P104107
G2409396Certificate of AnalysisMay 27, 2024 P104107
G2409397Certificate of AnalysisMay 27, 2024 P104107
G2409398Certificate of AnalysisMay 27, 2024 P104107
J2215316Certificate of AnalysisSep 01, 2022 P104107
J2215321Certificate of AnalysisSep 01, 2022 P104107
K2302045Certificate of AnalysisSep 01, 2022 P104107
C2415092Certificate of AnalysisSep 01, 2022 P104107
H2209336Certificate of AnalysisJul 29, 2022 P104107
H2209740Certificate of AnalysisJul 29, 2022 P104107
Proprietà chimiche e fisiche
SolubilitàSoluble in water (100 mg/mL). Insoluble in alcohol.
Sensibilitàmoisture sensitive
Peso molecolare212.266 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count4
Rotatable Bond Count0
Exact Mass211.845 Da
Monoisotopic Mass211.845 Da
Topological Polar Surface Area86.300 Ų
Heavy Atom Count8
Formal Charge0
Complexity36.800
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 Count4
Domande frequenti e articoli
One-Stop Handbook for Palladium-Catalyzed Reactions: Catalytic Cycles, Deactivation Troubleshooting, Ligand/Precatalyst Selection, and an Aladdin Reference List
Selection of Common Research Salts: A Task Map for Alkali Metal Salts & Alkaline Earth Metal Salts (with Product Tables 1–6)
Make “Aryl Chlorides + Low Pd Loading + Scale-Up Reproducibility” Reliable: The Initiation and Durability Logic of Pd–NHC (Palladium–N-Heterocyclic Carbene) Cross-Coupling (with Selection Navigation and Product Tables)
Choosing Boron Sources to Make Reactions Robust: How Boronic Acids, Boronate Esters, BF₃K Salts, and MIDA Improve Suzuki–Miyaura Start-Up and Scale-Up Reproducibility (with Product Tables 1–5)
How to Make the Suzuki–Miyaura Reaction Robust: Pinpoint the Bottleneck and Lock in a Reproducible Operating Window (with Selection Navigation and Product Tables 1–5)
Haloheterocycles and Cross-Coupling: A Research-Oriented Selection Framework from Substrate Identification to Bond-Forming Routes (Including Product Navigation and Tables 1–5)
Experimental Decision-Making for Cross-Coupling Reactions: Target Bond Type, Substrate Combination, and Catalytic System Selection
Deoxyfluorination of Hydroxyalkyl-Substituted Aryl/Alkenyl Boronates: C–F Bond Construction and C–B Bond Retention via a BF3K Intermediate
Overcoming the Electronic-Effect Limitations of Nucleophilic Aromatic Substitution in Fluoroarenes: Anion Activation, Concerted Substitution, and HF Capture by t-Bu-P4
Citations of This Product
Calcolatori di soluzioni
Recensioni

Recensioni dei clienti

Domande frequenti

What does AR mean?
AR is a defined analytical purity tier suitable for general analytical and reagent applications. It specifies a minimum assay percentage, controlled limits on common impurities (water, heavy metals, residue on ignition), and lot-to-lot consistency. AR is one of several purity tiers — choose based on the sensitivity and regulatory requirements of your method.
How should this product be stored?
Store in a cool place, desiccated, under argon. It is supplied under an argon blanket; reseal under inert gas after each use.
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 7778-53-2, the molecular formula is K3PO4, and the molecular weight is 212.27 g/mol. InChIKey LWIHDJKSTIGBAC-UHFFFAOYSA-K.
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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