Imidazole 99.5% AR
Buffer substance for pH 6.2 - 7.8
1,3-Diaza-2,4-cyclopentadiene; Glyoxaline
Product Code. |
01429 |
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 [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 |
Packaging
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 - 90°C |
| Iron (Fe) | Max 0.0005% |
| Sulphated ash | Max 0.1% |
| Water (H2O) | Max 0.2% |
Safety Information and 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