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I2399 Sigma-Aldrich

Imidazole Green Alternative

ACS reagent, ≥99% (titration)

Synonym: 1,3-Diaza-2,4-cyclopentadiene, Glyoxaline

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Properties

Related Categories ACS Grade Buffers, Biochemicals and Reagents, Biological Buffers, Buffers A to Z, Building Blocks,
grade   ACS reagent
vapor pressure   <1 mmHg ( 20 °C)
assay   ≥99% (titration)
greener alternative product characteristics   Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
impurities   ≤0.2% water
ign. residue   ≤0.1%
pH   9.5-11.0 (25 °C, 5% in H2O)
pKa (25 °C)   6.95
bp   256 °C(lit.)
mp   88-91 °C(lit.)
cation traces   Fe: ≤0.001%

Description

Application

Excellent for buffers in the range of pH 6.2-7.8

Packaging

100, 500 g in poly bottle

General description

Imidazole is a five-membered heterocycle that is found in many naturally occurring compounds. It exhibits both acidic and basic properties. It is reported to be an inhibitor of thromboxane formation. Its vertical spectrum and the radiationless decay have been recorded and analyzed.

Sigma Life Science is committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here.

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Other Notes

Go to Redi-Dri Product Listing 792527

Price and Availability

Suggested Laboratory Gloves


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.




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Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN 3263 8 / PGII
WGK Germany 
2
RTECS 
NI3325000
Flash Point(F) 
293 °F
Flash Point(C) 
145 °C

Documents

Certificate of Analysis

Certificate of Origin

Protocols & Articles

Articles

Determination of Water Content in Imidazole Using Karl Fischer Titration

Nitrogen compounds, acid amides and weakly basic amines (heterocyclenes) give no problems. They can be titrated according to the standard procedures. Strongly basic amines alter the pH value and must...
Keywords: Titrations

Peer-Reviewed Papers
15

References

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