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Potassium iodide - anhydrous, high-purity, Reagent grade, ≥99% , CAS No.7681-11-0

CAS: 7681-11-0 Cat. No.: P433793 Formula: KI Molecular Weight: 166.00 EC Number: 231-659-4
1174 Citations COA
Potassium iodide - anhydrous, high-purity, Reagent grade, ≥99% CAS No(7681-11-0) by Aladdin Scientific
AVAILABLE TO ORDER
GRADE & PURITY Anhydrous Grade ? Anhydrous grade — water removed and packaged dry for moisture-sensitive chemistry. Use in reactions where even trace water would interfere or quench. Reagent Grade ? General reagent-grade purity suitable for most laboratory work. Use as a dependable default when no specific higher grade is required. High-purity ? High-purity grade with substantially reduced impurity levels. Use when trace contaminants would interfere with your measurement or process. ≥99%
Synonyms
Joptone | Potassium iodide, ultra dry | potassium iodide | Potassium iodide (K3I3) | POTASSIUM IODIDE [MART.] | Tox21_301293 | Potassium iodide (K(I2)) | Radiban | AI3-52931 | Potassium iodide (KI) | C08219 | Potassium iodide [USP:JAN] | DB06715 | Potassi
Storage
Room temperature
★
Size
USA
Germany (EU)*
Price
Qty
100g
P433793-100g
Made to order · 8–12 wks

$133.90

$156.90
Save $23.00 (14.66%)
500g
P433793-500g
Made to order · 8–12 wks

$387.90

$452.90
Save $65.00 (14.35%)
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SDS
Safety data
COA
Certificate
DS
Datasheet
SP
Spec sheet
Specifications Names and Identifiers Documentation Advanced Data Taxonomic Classification 3D Structure Associated Targets(Human) Associated Targets(non-human) Mechanisms of Action Certificates（CoA,COO,BSE/TSE and Analysis Chart) Chemical and Physical Properties Documents & Articles Citations of This Product Solution Calculators Reviews
🧪
Why this grade

anhydrous, high-purity, Reagent grade, ≥99% Anhydrous Grade,High-purity,Reagent Grade for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature Ships 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 1174 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Joptone | Potassium iodide, ultra dry | potassium iodide | Potassium iodide (K3I3) | POTASSIUM IODIDE [MART.] | Tox21_301293 | Potassium iodide (K(I2)) | Radiban | AI3-52931 | Potassium iodide (KI) | C08219 | Potassium iodide [USP:JAN] | DB06715 | Potassi
Specifications & Purity
anhydrous, high-purity, Reagent grade, ≥99%
Storage
Room temperature
Grade
Anhydrous Grade, High-purity, Reagent Grade
Purity
≥99%
Names and Identifiers
Canonical Smiles
[K+].[I-]
IUPAC Name
potassium;iodide
InChIKey
NLKNQRATVPKPDG-UHFFFAOYSA-M
INCHI
1S/HI.K/h1H;/q;+1/p-1
Isomeric SMILES
[K+].[I-]
WGK Germany
1
RTECS
TT2975000
Molecular Weight
166.00

Documentation

📋 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
ClassAlkali metal salts
SubclassAlkali metal iodides
Intermediate Tree Nodes Not available
Direct ParentAlkali metal iodides
Alternative Parents Inorganic salts  
Molecular FrameworkNot available
Substituents Alkali metal iodide - Inorganic salt
DescriptionThis compound belongs to the class of inorganic compounds known as alkali metal iodides. These are inorganic compounds in which the largest halogen atom is Iodine, and the heaviest metal atom is an alkali metal.
External Descriptors potassium salt
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
CA2 Tclin Carbonic anhydrase II (17698 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA1 Tclin Carbonic anhydrase I (13240 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA5A Tclin Carbonic anhydrase VA (1168 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA9 Tclin Carbonic anhydrase IX (8255 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
CA4 Carbonic anhydrase IV (1713 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Escherichia coli (133304 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
rep Replicase polyprotein 1ab (378 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates（CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Chemical and Physical Properties
Refractive Index1.677
Flash Point(°C)>93°C
Boil Point(°C)1420℃
Melt Point(°C)680℃
Molecular Weight166.002 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count1
Rotatable Bond Count0
Exact Mass165.868 Da
Monoisotopic Mass165.868 Da
Topological Polar Surface Area0.000 Ų
Heavy Atom Count2
Formal Charge0
Complexity2.000
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
The Guide to Anhydrous Grade for Reagents
Categories: Reagent Specifications, Grading and Purity
Tags:
Anhydrous Grade
High-Purity Reagents: Overview and Aladdin Product Selection Guide
Categories: Reagent Specifications, Grading and Purity
Tags:
High-purity
How to Choose Reagent Grades in Scientific Research? A Practical Guide to Reagent Grade
Categories: Reagent Specifications, Grading and Purity
Tags:
Grade Reagent Grade
TEMPO-Catalyzed Oxidation Quick Reference (Alcohol Oxidation Focus): Three Regeneration Routes (NaOCl / Cu–O₂ / PIDA) + Selection & Troubleshooting
Categories: Technical Articles: Reagent Chemistry, Synthesis & Bioscience Guides
Tags:
TEMPO
Structural–Functional Analysis of the Methoxy Group (–OCH₃) in Approved Small-Molecule Drugs: Mechanisms, Evidence Chains, and Product-Selection Navigation (with Related Product Tables)
Categories: Technical Articles: Reagent Chemistry, Synthesis & Bioscience Guides
Tags:
–OCH₃
A Practical Guide to Organozinc Reagents for Synthesis (Organozinc Reagents): Structural Features, Key Reactions, and a Practical Selection Navigation (Including Aladdin Product Tables)
Categories: Technical Articles: Reagent Chemistry, Synthesis & Bioscience Guides
Tags:
Organozinc reagents
Selection of Common Research Salts: A Task Map for Alkali Metal Salts & Alkaline Earth Metal Salts (with Product Tables 1–6)
Categories: Technical Articles: Reagent Chemistry, Synthesis & Bioscience Guides
Tags:
Alkali Metal Salts Alkaline Earth Metal Salts
Perovskite PV/PeLED Precursor Guide: Selecting Metal Halide Salts, Key Conditions, and Reproducible Performance (including Product Tables 1–4 and a Selection Navigation Guide)
Categories: Technical Articles: Reagent Chemistry, Synthesis & Bioscience Guides
Tags:
Metal halide salts PbI₂ SnI₂ CsBr
Recent Advances in Methods for Measuring Starch-Related Indices in Plants and Their Application-Oriented Selection
Categories: Technical Articles: Reagent Chemistry, Synthesis & Bioscience Guides
Tags:
Spectrophotometry Starch Soluble starch Total starch Amylose Amylopectin Resistant starch Iodine blue value Colorimetric assay
Ferulic Acid: Structural Features, Preparation Routes, and Key Points for Research Applications
Categories: Technical Articles: Reagent Chemistry, Synthesis & Bioscience Guides
Tags:
ferulic acid 3-methoxy-4-hydroxycinnamic acid
Research Applications of Pancreatin: An Overview
Categories: Technical Articles: Reagent Chemistry, Synthesis & Bioscience Guides
Tags:
In Vitro Digestion Models sample pretreatment Pancreatin Composite digestive enzymes Bioaccessibility Potency assay Omics analysis
Alginate : An Overview of Extraction and Purification Processes, Quality Identification, and Multidomain Applications
Categories: Technical Articles: Reagent Chemistry, Synthesis & Bioscience Guides
Tags:
Quality control Alginate Sodium alginate Calcium alginate Brown algae M/G ratio Ionic crosslinking Identification
Functional Properties, Application Scenarios, and Manufacturing Processes of Maltotetraose (G4): A Review
Categories: Technical Articles: Reagent Chemistry, Synthesis & Bioscience Guides
Tags:
G4 Maltotetraose Maltooligosaccharide α-1,4-glycosidic bond Low sweetness High viscosity Anti-crystallization Acid and heat stability
Analytical Basis, Methodological Systems, and Quality Control for Vitamin C Content Determination
Categories: Technical Articles: Reagent Chemistry, Synthesis & Bioscience Guides
Tags:
ascorbic acid vitamin C High-performance liquid chromatography Quality control Spectrophotometry sample pretreatment Dehydroascorbic Acid Total Vitamin C Titration Electrochemical Detection
Experimental Selection Logic for Phase-Transfer Catalysts: Choosing Catalysts by Phase-State System, Source of Anionic Species, and Reaction Task
Categories: Technical Articles: Reagent Chemistry, Synthesis & Bioscience Guides
Tags:
Phase-Transfer Catalysis PTC
Microscopic Interpretation and Taxonomic Value of Iodine Staining Reaction in Fungal Spores
Categories: Technical Articles: Reagent Chemistry, Synthesis & Bioscience Guides
Tags:
IKI Melzer’s reagent Lugol’s iodine Fungal Spores Iodine Reaction Amyloid Reaction Dextrinoid Reaction Spore Wall Spore Ornamentation Fungal Microscopic Identification
Microbial Morphological Identification: Observation Systems, Staining Methods, and Result Interpretation
Categories: Technical Articles: Reagent Chemistry, Synthesis & Bioscience Guides
Tags:
Gram staining Microbial Morphological Identification Bacterial Morphology Fungal Morphology Acid-Fast Staining Spore Staining Capsule Staining Colony Morphology Microscopic Observation Microbial Quality Control
What Is an Etchant? Etching Mechanisms for Revealing Metallographic Microstructures, Selection Methods, and Applications of Related Wet-Etching Reagents
Categories: Technical Articles: Reagent Chemistry, Synthesis & Bioscience Guides
Tags:
Etchant
Elastic Fiber Staining Methods: Comparison of Orcein, Verhoeff, Weigert, and Victoria Blue Methods
Categories: Technical Articles: Reagent Chemistry, Synthesis & Bioscience Guides
Tags:
histochemical staining elastic fiber staining elastic fibers orcein method Verhoeff method Weigert method Victoria blue method
Citations of This Product
How to Cite Aladdin Scientific Products? Citations Search
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