等级
ACS reagent
anhydrous
质量水平
蒸汽压
<1 mmHg ( 20 °C)
产品线
Redi-Dri™
检测方案
≥99%
形式
solid
质量
free-flowing
杂质
≤0.2% water
灼烧残渣
≤0.1%
pH值（酸碱度）
9.5-11.0 (25 °C, 5% in H2O)
pKa (25 °C)
6.95
bp
256 °C (lit.)
mp
88-91 °C (lit.)
痕量阳离子
Fe: ≤0.001%
SMILES字符串
c1c[nH]cn1
InChI
1S/C3H4N2/c1-2-5-3-4-1/h1-3H,(H,4,5)
InChI key
RAXXELZNTBOGNW-UHFFFAOYSA-N
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应用
咪唑由于具有两性性质和快速的质子转移能力，可作为质子转移试剂用于多孔有机聚合物合成。
咪唑作为催化剂的用途：
咪唑作为催化剂的用途：
- 在氯硅烷/DMF存在下，醇、羧酸和胺类物质的硅烷化反应。
- 羧酸和光气制备相应酰氯。
- 咪唑-PPh3/I2催化体系用于醇变为碘化物的转换反应。
- 咪唑-PPh3/I2用于二醇脱氧反应。
特别适用于 pH 6.2-7.8 范围内的缓冲液
法律信息
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
警示用语：
Danger
危险声明
危险分类
Acute Tox. 4 Oral - Eye Dam. 1 - Repr. 1B - Skin Corr. 1C
WGK
WGK 2
闪点(°F)
293.0 °F
闪点(°C)
145 °C
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商品
Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.
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