Imidazole

• Catalog No.: 49128
• CAS Number: 288-32-4
• M. F.: C3H4N2
• M. W.: 68.07726
• Purity: ≥99.5% (GC)

SYNONYMS

• Title: 咪唑
• IUPAC name: 1H-imidazole
• IUPAC Traditional name: Him
• Synonyms: Glyoxaline; 1,3-二氮杂-2,4-环戊二烯; 1,3-Diaza-2,4-Cyclopentadiene; 甘恶啉

DATABASE IDS

• EC Number: 206-019-2
• CAS Number: 288-32-4
• Beilstein Number: 103853
• MDL Number: MFCD00005183

PROPERTIES

• Antion Traces: chloride (Cl-): ≤50 mg/kg
• Antion Traces: sulfate (SO42-): ≤50 mg/kg
• Cation Traces: Ca: ≤10 mg/kg
• Cation Traces: Cd: ≤5 mg/kg
• Cation Traces: Co: ≤5 mg/kg
• Cation Traces: Cr: ≤5 mg/kg
• Cation Traces: Cu: ≤5 mg/kg
• Cation Traces: Fe: ≤5 mg/kg
• Cation Traces: K: ≤50 mg/kg
• Cation Traces: Mg: ≤5 mg/kg
• Cation Traces: Mn: ≤5 mg/kg
• Cation Traces: Na: ≤50 mg/kg
• Cation Traces: Ni: ≤5 mg/kg
• Cation Traces: Pb: ≤5 mg/kg
• Cation Traces: Zn: ≤5 mg/kg
• Empirical Formula (Hill Notation): C3H4N2
• Grade: puriss. p.a.
• Purity: ≥99.5% (GC)
• pKa: 6.95 (25°C)
• Boiling Point: 256 °C(lit.)
• Flash Point: 145 °C
• Flash Point: 293 °F
• Melting Point: 88-91 °C(lit.)
• Melting Point: 88-91 °C
• pH: 9.5-11.0 (25 °C, 50 mg/mL in H2O)
• Vapor Pressure: <1 mmHg ( 20 °C)
• GHS Signal Word: Danger
• GHS Hazard statements: H302-H314-H360D
• European Hazard Symbols: Toxic (T)
• Personal Protective Equipment: Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
• GHS Precautionary statements: P201-P280-P305 + P351 + P338-P310
• RID/ADR: UN 2923 8/PG 3
• Risk Statements: 61-22-34
• RTECS: NI3325000
• Safety Statements: 53-26-36/37/39-45
• Hazard Class: 8
• UN Number: 2923
• Packing Group: 3
• German water hazard class: 1

DETAILS

Description (English)

Application
Excellent for buffers in the range of pH 6.2-7.8

Description (简体中文)

Application
特别适用于 pH 6.2-7.8 范围内的缓冲液