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LC3291 Imidazole

buffer substance


Order number Packaging Quantity Price €
AC30291 Plastic bottle 50g 17.37
AC30291 Plastic bottle 250 g 52.20
AC30291 Plastic bottle 1 kg 174.60


Product information
Grade ACS
Synonyms Glyoxaline, Iminazole
Hill Formula C3H4N2
HS Code 2933 29 90
EC number 206-019-2
Molar mass 68.08 g/mol
CAS number 288-32-4


Chemical and physical data
Ignition temperature 480 °C
Solubility 633 g/l (20 °C)
Melting point 89 – 90 °C
Molar mass 68.08 g/mol
Density 1.030 g/cm3
Bulk density 500 – 600 kg/m3
pH value 10.5 (67 g/l, H2O, 20 °C)
Boiling point 256 °C (1013 hPa)
Vapor pressure 0.003 hPa (20 °C)
Flash point 145 °C


Safety information according to GHS
Hazard Statement(s) H302: Harmful if swallowed.
H314: Causes severe skin burns and eye damage.
H361d: Suspected of damaging the unborn child.
Precautionary Statement(s) P280: Wear protective gloves/protective clothing/eye protection/face protection.
P301 + P330 + P331: IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal Word Danger
Hazard Pictogram(s)

RTECS NI3325000
Storage class 8 A Combustible substances, corrosive
WGK WGK 1 slightly water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.


Safety information
R Phrase R 22-34-63
Harmful if swallowed.Causes burns.Possible risk of harm to the unborn child.
S Phrase S 22-26-36/37/39-45
Do not breathe dust.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Categories of danger harmful, corrosive, toxic for reproduction
Hazard Symbol Corrosive


Transport information
Declaration (transport by sea) IMDG-Code UN 3263 CORROSIVE SOLID, BASIC, ORGANIC, N.O.S.(IMIDAZOLE), 8, III, Segregation Group: 18 (Alkalis)
Declaration (transport by air) IATA-DGR UN 3263 CORROSIVE SOLID, BASIC, ORGANIC, N.O.S.(IMIDAZOLE), 8, III


Toxicological data
LD 50 oral LD50 rat 970 mg/kg


Assay (perchloric acid titration) ≥ 99 %
Identity (IR-spectrum) conforms
pH-value (5 %, in water) 9.5 – 11.0
Melting point 90 – 92 °C
UV/VIS Spectrum conforms
Fe (Iron) ≤ 0.001 %
Sulfated ash ≤ 0.1 %
Water (according to Karl Fischer) ≤ 0.2 %
Water (according to Karl Fischer)


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