Methanol 甲醇
Specifications 参数
Methanol: 甲醇
1. Molecular formula: CH3OH 分子式 ：CH3OH
2. Molecualr weight: 32.04 分子量：32.04
Functions: Methanol is mainly used as in the fields of chemical industry, medicine, pesticide and other industries with a wide range of functions, as well as a clean alternative fuel.
功能：甲醇主要用于化工，制药，杀虫剂等广泛领域，也用于可替代燃料。
Characteristics of Methanol 甲醇特性
1. Methanol is the simplest alcohol, and is a light, volatile, colorless, flammable, liquid with a distinctive odor that is very similar to but slightly sweeter than ethanol.
甲醇是分子量最小的醇类，无色，易燃，易挥发液体 。气味同乙醇极其相似，略微比乙醇甜。
2. At room temperature it is a polar liquid and is used as an antifreeze, solvent, fuel, and as a denaturant for ethanol.
在常温下，甲醇是极性液体，可用作防冻剂，溶剂，燃料 ，乙醇变性剂。
3. It is also used for producing biodiesel via trans-esterification reaction.
甲醇也可同过反式酯化反应用于制造柴油。
|
Test items |
Standard |
|
Appearance |
Clear colorless |
|
Assay CH3OH (by GC)% |
Min 99.9 |
|
Water (by KF coulometry)% |
Max 0.05 |
|
Evaporation Residue |
Max 0.001 |
|
Titrable Acid mmol/g |
Max 0.0005 |
|
Titrable Base mmol/g |
Max 0.0002 |
|
Solubility in H2O |
Pass test |
|
UV absorbance (1.00-cm cell vs water) |
|
|
At 205nm |
Max 1.00 |
|
At 210nm |
Max 0.60 |
|
At 220nm |
Max 0.30 |
|
At 230nm |
Max 0.15 |
|
At 240nm |
Max 0.05 |
|
At 260nm |
Max 0.01 |
|
测试项目 |
标准 |
|
外观 |
无色透明 |
|
含量 CH3OH % |
≥ 99.9 |
|
含水量% |
≤ 0.05 |
|
蒸发残留物 |
≤ 0.001 |
|
滴定酸 mmol/g |
≤ 0.0005 |
|
Titrable Base mmol/g |
≤ 0.0002 |
|
溶解度 |
通过测试 |
|
紫外吸收 |
(1.00-cm cell vs water) |
|
205nm时 |
≤ 1.00 |
|
210nm时 |
≤ 0.60 |
|
220nm时 |
≤ 0.30 |
|
230nm时 |
≤ 0.15 |
|
240nm时 |
≤0.05 |
|
260nm时 |
≤ 0.01 |