二甲氧基甲烷,Dimethoxymethane [DMM];absolute, over molecular sieve (H2O ≤0.01%), ≥99.0% (GC)

别名:二甲醇缩甲醛;甲缩醛;Formaldehyde dimethyl acetal;Methylal

线性分子式: CH2(OCH3)2 CAS号: 109-87-5 分子量: 76.09 Beilstein: 1697025 EC 号: 203-714-2 MDL编号: MFCD00008495 PubChem化学物质编号: 57651079 NACRES: NA.22
制造商品牌: 西格玛 Sigma-Aldrich
货号(SKU): 47676
CAS号: 109-87-5
MDL号: MFCD00008495
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说明

甲醛缩二甲醇(FDA,FDMA,FADMA,二甲氧基甲烷,DMM,甲基醛)是一种可生物降解的[1]二甲基缩醛。它是在酸催化剂存在下将甲醛与甲醇缩合而成的。它本质上是两亲性的,具有低粘度、表面张力和沸点。它是一种易燃、高挥发性的溶剂,具有出色的溶解能力。[1] 据报道,通过在碱性甲醇中阳极甲氧基化形成原甲酸三甲酯。

一般描述

Formaldehyde dimethyl acetal (FDA, FDMA, FADMA, dimethoxymethane, DMM, methylal) is a biodegradable[1] dimethyl acetal. It has been synthesized by condensing formaldehyde with methanol in the presence of acid catalyst. It is amphiphilic in nature with low viscosity, surface tension and boiling point. It is a flammable, highly volatile solvent with excellent dissolving power.[1] It is reported to form trimethylorthoformate by anodic methoxylation in basic methanol.[2]
 

应用

Formaldehyde dimethyl acetal may be used in the following studies:
  • Synthesis of methoxymethyl (MOM) ethers.[3][4][5]
  • As an external cross-linker to form microporous polymers.[6]
  • Dehydration of biological samples for scanning electron microscopy (SEM).[7]
 

属性

等级

absolute

质量水平

测定

≥99.0% (GC)

质量

over molecular sieve (H2O ≤0.01%)

折射率

n20/D 1.354

密度

0.860 g/mL at 20 °C (lit.)

SMILES string

COCOC

InChI

1S/C3H8O2/c1-4-3-5-2/h3H2,1-2H3

InChI key

NKDDWNXOKDWJAK-UHFFFAOYSA-N

 

安全信息

象形图

Flame

警示用语:

Danger

危险声明

危险分类

Flam. Liq. 2

补充剂危害

储存分类代码

3 - Flammable liquids

WGK

WGK 1

闪点(F)

-0.4 °F - closed cup

闪点(C)

-18 °C - closed cup

个人防护装备

Eyeshields, Faceshields, Gloves

商品规格
属性名称属性值
储存温度 Storage temp.常温阴凉避光
全球实时库存 Availability √美国St. Louis ≥ 20 | 欧洲Eur. ≥ 16 | 東京Tokyo ≥ 5 | 香港与北京 ≥ 20
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