Imidazole 99.5%, A.R (Glyoxaline) | C3H4N2, 100 Gram

Imidazole 99.5%, A.R | C3H4N2, 100 Gram

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

Grade : AR
Purity : 99.5%
CAS No. : 288-32-4
Molecular Formula : C3H4N2
Molecular Weight : 68.08
H.S.Code : 2933.29900
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 [20C] : 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 20C : 0.02

Specification
Appearance : White to off white crystals/ crystalline powder/flakes
Assay (by HClO4 titration) : Min 99.5%
pH (5% solution in water) : 9.5 - 10.5
Melting point : 88 - 90C
Iron (Fe) : Max 0.0005%
Sulphated ash : Max 0.1%
Water (H2O) : Max 0.2%

Note :
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