Synonyms: 1,3-Diaza-2,4-cyclopentadiene or Glyoxaline
C3H4N2
Mr 68.08
CAS Number [288-32-4]
EC Number 206-019-2
Beilstein Registry Number 103853
Merck 14,4912
RTECS NI3325000
MDL Number MFCD00005183
PubChem Substance ID 24880372
Purity ≥ 99.5%
UN Number 2923 8/PG 3
pKa = 6.95
The useful pH range of an Imidazole can be 6.2 – 7.8
HR2-819 is titrated to pH 7.0 using HCl
HR2-819 Measured Conductivity Range: 45.4 – 50.4 mS/cm at 25°C
HR2-819 Measured Refractive Index Range: 1.34836 – 1.34904 at 20°C
Titrate HR2-573 to the desired pH using HCl
HR2-573 Measured pH Range: 10.5 – 10.7 at 25°C
HR2-573 Measured Conductivity Range: 71.1 – 101.5 µS/cm at 25°C
HR2-573 Measured Refractive Index Range: 1.34420 – 1.34440 at 20°C
同义词:1,3-Diaza-2,4-cyclopentadiene 或 Glyoxaline
C3H4N2
68.08 先生
CAS 编号 [288-32-4]
欧盟编号 206-019-2
贝尔斯坦注册号 103853
默克 14,4912
RTECS NI3325000
MDL 编号 MFCD00005183
PubChem 物质 ID 24880372
纯度≥99.5%
联合国编号 2923 8/PG 3
pKa = 6.95
咪唑的有用 pH 范围可以是 6.2 – 7.8
HR2-819 使用 HCl 滴定至 pH 7.0
HR2-819 测得的电导率范围:25°C 时为 45.4 – 50.4 mS/cm
HR2-819 测量的折射率范围:20°C 时为 1.34836 – 1.34904
使用 HCl 将 HR2-573 滴定至所需的 pH 值
HR2-573 测得的 pH 范围:25°C 时 10.5 – 10.7
HR2-573 测得的电导率范围:25°C 时为 71.1 – 101.5 µS/cm
HR2-573 测量的折射率范围:20°C 时为 1.34420 – 1.34440
Ca ≤0.001%
Cd ≤0.0005%
Cl ≤0.005%
Co ≤0.0005%
Cr ≤0.0005%
Cu ≤0.0005%
Fe ≤0.0005%
K ≤0.005%
Mg ≤0.0005%
Na ≤0.005%
Ni ≤0.0005%
Pb ≤0.0005%
SO4 ≤0.005%
Zn ≤0.0005%