Dimethylamine

Japanese: ジメチルアミン - じめちるあみん(英語表記)dimethylamine
Dimethylamine

An aliphatic amine. A gas with an odor similar to ammonia. It is usually sold commercially as an aqueous solution. The aqueous solution is slightly alkaline. It is more basic than ammonia. It was isolated, along with trimethylamine, as a component of the saltwater used to soak herring. It is synthesized by the alkaline decomposition of ammonia, methanol (methyl alcohol), and p (para)-nitrosodimethylaniline. When treated with nitrous acid, it produces N -dimethylnitrosamine (commonly known as nitrosamine, abbreviated as DMNA), which is a highly carcinogenic substance.


[Kiyoshi Mutai]

[References] | Amines | Nitrosamines [Supplementary information] | Dimethylamine (Data Note)

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

脂肪族アミンの一つ。アンモニアに似たにおいをもった気体。通常は水溶液として市販されている。水溶液は弱アルカリ性である。塩基性はアンモニアより強い。ニシンを漬けた塩水の成分として、トリメチルアミンとともに分離された。アンモニアとメタノール(メチルアルコール)、p(パラ)-ニトロソジメチルアニリンのアルカリ分解などで合成される。亜硝酸を作用させると、強い発癌(はつがん)作用をもった、N-ジメチルニトロソアミン(通称ニトロソアミン。DMNAと略記される)を生じる。


[務台 潔]

[参照項目] | アミン | ニトロソアミン[補完資料] | ジメチルアミン(データノート)

出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例

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