二甲醇缩甲醛（Dimethoxymethane），是一种有机化合物，分子式是C3H8O2。
主要用于生产阴离子效换树脂，也作溶剂和特种燃料。其溶解能力比乙醚、丙酮强，和甲醇和共沸混合物能溶解含氮量高的硝化纤维素。但由于其蒸气有较强麻醉性，不宜作一般溶剂使用，通常作特殊声合的溶剂。 还用于香料制造、生产人造树脂，用作格利雅反应和雷帕（合成）反应的反应介质。
本文件规定了工业用甲醛缩二甲醇（甲缩醛）的产品分型、要求、试验方法、检验规则、标志和标签、包装、运输、贮存以及安全。本文件适用于以甲醛和甲醇为原料合成生产的甲醛缩二甲醇（甲缩醛）产品。
名称：毛细管柱
规格：30m*0.53mm*20um
型号：HH-DVB
应用：T/CPCIF 0122-2021 工业用甲醛缩二甲醇（甲缩醛）
Dimethoxymethane is an organic compound with the molecular formula C3H8O2.
It is mainly used for the production of anion exchange resin, as well as solvent and special fuel. Its solubility is stronger than that of ether and acetone, and its mixture with methanol and azeotrope can dissolve nitrocellulose with high nitrogen content. However, due to its strong anesthetic properties, its vapor is not suitable for use as a general solvent, and is usually used as a solvent for special sound synthesis. It is also used in perfume manufacturing, production of artificial resin, and as a reaction medium for Grignard reaction and Rapa (synthesis) reaction.
This document specifies the product classification, requirements, test methods, inspection rules, marks and labels, packaging, transportation, storage and safety of formaldehyde dimethyl acetal (methylal) for industrial use. This document is applicable to formaldehyde dimethyl acetal (methylal) products synthesized from formaldehyde and methanol.
Name: capillary column
Specification: 30m * 0.53mm * 20um
Model: HH-DVB
Application: T/CPCIF 0122-2021 formaldehyde dimethyl acetal (methylal) for industrial use
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