IMIDAZOLE AR/ACS

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

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Article No.
04161
Grade
AR/ACS
Purity
99.5%
CAS No.
288-32-4
Molecular Formula
C3H4N2
Molecular Weight
68.08
H.S. Code
2933.2990
Shelf Life
60 Months
MSDS
 

 

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

Packings

  • 1PW1200200

    100 g (00100)

  • 1PW1200750

    500 g (00500)

 

Specifications

Appearance White to off white crystals/ crystalline powder/flakes
Assay (by HClO4 titration) Min 99.5%
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 (H2O) 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 : 01-Apr-2021
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