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IMIDAZOLE AR/ACS

Buffer substance for pH 6.2 - 7.8
1,3-Diaza-2,4-cyclopentadiene; Glyoxaline

COAs

Packings

100 g (00100)

500 g (00500)

1PW1200200 1PW1200750
Print friendly version
Article No. 04161 Grade AR/ACS
Purity 99% CAS No. 288-32-4
Molecular Formula C3H4N2 Molecular Weight 68.08
H.S. Code 2933.2990 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour White to pale yellow
Odour Amine like pH value 9.5 - 11
Melting point/ Freezing point [°C] 88 - 91 °C Flash point [°C] > 135 °C
Boiling point [°C] 256 °C Vapour pressure [20°C] 0.003 hPa at 20 °C
Density [g/cm3] 1.03 Solubility in water [% weight] Soluble in water
Partition coefficient Log Pow octanol / water at 20°C 0.02

Specifications

Appearance White to off white crystals/ crystalline powder/flakes Assay (by HClO4 titration) Min 99.0%
pH (5% solution in water) 9.5 - 11.0 Melting point 88 - 90°C
Iron (Fe) Max 0.0005% Sulphated ash Max 0.1%
Water Max 0.2%

Safety Information and Hazard Symbols

Corrosion Exclamation Mark Health Hazard
Symbol: GHS05, GHS07, GHS08
 Signal Word: Danger
 UN No.: 3263
 IMCO Class No.: 8
 Packing Group: II
 Hazardous Statement: H302-H314-H360D
 Precaution Statement: P201-P280-P305 + P351 + P338-P310
Revision Date: 05-Jan-2023

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