IMIDAZOLE
IMIDAZOLE AR/ACS
Buffer substance for pH 6.2 - 7.8
Short Name: IMIDAZOLE
Synonym: 1,3-Diaza-2,4-cyclopentadiene; Glyoxaline
Basic Details
Article No.
LG2534d
Grade
AR/ACS
Purity
99.5%
CAS No.
288-32-4
HS Code
2933.2990
Shelf Life
60 Months
Packings Avialable
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
Chemical 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 & Hazard Symbols
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