Diamond cut Diamond--Ultra-Vival

Rei Morishita from Japan: Environmentalist, poet, essayist. Everything, various things will be taken up. Originally, it was a blog about disasters, and expanded to say romance, for example, is a kind of disaster because it is a problem of one’s survival.

Some synthetic detergents turn into sulfuric acid when it is burned:Causes of acid rain

Some synthetic detergents turn into sulfuric acid when it is burned:Causes of acid rain

It's been about 50 years ( half a century )since synthetic detergents were used to be more useful than soap(so said), and what is the ratio of soap now? It seems that the ratio of synthetic detergents is still high. In the first place, the key point of this blog is what happens when synthetic detergent is incinerated. Why I want to burn? I'm currently using soap powder at home, and I thought about what to do with the numerous synthetic detergents that newspaper shops brought as souvenirs of newspapers, so I thought about whether to put them out as "burnable garbage" or not. (I thought so, as there is an open secret that synthetic detergents, a product of the so-called petroleum industry, will cause many problems if they dissolve in water and are released into the environment, as much as the history of synthetic detergents. No matter how hard the historic "soap movement" works, the current situation is that the movement are defeated by the forces that make synthetic detergents .)


Crude Oil

The first synthetic detergent was so-called ABS. However, this has been replaced by LAS, which is easily decomposed in nature. ABS is "(branched chain type) sodium alkylbenzene sulfonate" and LAS is "straight chain sodium alkylbenzene sulfonate". ABS is a branched alkyl group, and LAS is a straight line.

By the way, if you look at wiki (synthetic detergent) what kind of synthetic detergent is currently used:
@ 1: LAS = linear alkylbenzene sulfonic acid and salt

@ 2: AO = N, N-dimethyllaurylamine = N-oxide

@ 3: DAC = bishydrogenated beef tallow dimethylammonium chloride

@ 4: AE = polyoxyethylene alkyl ether

@ 5: OPE = polyoxyethylene octylphenyl ether

@ 6: NPE = polyoxyethylene nonylphenyl ether
... These drugs are commonly used. I will look at them in order.

@ 1: The chemical formula of LAS is as follows, S (sulfur) is included in the structure. If you burn it, you will end up with sulfuric acid. (So-called sulfur oxides: via SOX)


See https://www.nihs.go.jp/hse/ehc/sum2/ehc169/ehc169.html

@ 2: N, N-dimethyllaurylamine = N-oxide

Chemical formula C14H31NO

This contains N (nitrogen), and when burned, nitric acid will be produced as a result. (So-called nitrogen oxides: via NOX.)

@ 3: Bishydrogenated beef tallow dimethylammonium chloride

Chemical formula C38H80ClN

This contains N (nitrogen) and Cl (chlorine), and when burned, nitric acid and hydrochloric acid will be produced. Or dioxin.

@ 4 to @ 6 These are detergents made of only C, H, and O materials that do not contain S, N, or Cl, so there should be no particular problem with burning.

Chemical formula of AE OH2 (CH2) m (C2H4O) n

I will conclude that @ 1, @ 2, and @ 3 are all sources of strong acid and cause acid rain, so it is better not to incinerate them. In addition, when I did a Google search for "LAS Burn", there were no hits with this search condition. It turns out that no one thought about that. The fact that synthetic detergents containing S, N, and Cl become strong acids when burned is because if they are burned and completely oxidized, they will be in the final form (oxide) that binds to oxygen. In that case, if you really think about environmental issues, it is most appropriate to keep it carefully as a so-called "treasure" without using synthetic detergent (if you already have it at home) and not incinerating it. It seems to be a good act. It goes without saying that it is best not to manufacture.

A word of the day: Synthetic detergent that causes problems whether it is flushed with water or put on fire. I think human intelligence is too inferior to handle such annoying substances. The following is a description that sharply points out the problems of synthetic detergents as surfactants.


: Sinking duck(in Japanese)

Also, I used to serialize 6 stories about water in a magazine (a newspaper of the greengrocer group dealing with natural food agricultural products). Here are some thoughts on soaps and synthetic detergents.


See below for one aspect of acid rain.


(in Japanese)

@ The Devilish sonnet

Any blog
Vampires may settle in.
This word, without thinking for myself, in the description of the blog
A person who makes comments in a conditioned reflexive manner.

No matter how good the blog is
Vampires halve the power of "words".
But the trouble is that the vampires
They don't realize they are a vampire.

Generally, there are many comments and responses
Blogs tend to have more vampires.
For my blog, the number of comments has been low recently.

At least by the cross on the blog
The vampires are leaving.
They don't understand Japanese.


Updated once a week on Wednesday or Thursday.

In Japanese, original






@1:LAS =直鎖アルキルベンゼンスルホン酸及び塩

@2:AO =N,N-ジメチルラウリルアミン=N-オキシド

@3:DAC =ビス水素化牛脂ジメチルアンモニウムクロライド

@4:AE =ポリオキシエチレンアルキルエーテル

@5:OPE =ポリオキシエチレンオクチルフェニルエーテル

@6:NPE =ポリオキシエチレンノニルフェニルエーテル




https://www.nihs.go.jp/hse/ehc/sum2/ehc169/ehc169.html を参照

化学式 C14H31NO  これはN(窒素)を含み、燃やすと、結果として硝酸が生成するでしょう。(いわゆる窒素酸化物:NOXを経て。)

化学式 C38H80ClN  これはN(窒素)とCl(塩素)を含み、燃やすと硝酸、塩酸が生成するでしょう。あるいはダイオキシンも。

@4~@6  これらはSやNやClを含まぬ、C,H,Oだけの材料でできた洗剤なので、燃やすことについては特に問題はないでしょう。
AEの化学式 OH2(CH2)m(C2H4O)n

@1、@2、@3はどれも強酸の発生源となり、酸性雨を降らす原因になってしまうので、焼却処分はやらないほうが良い、という結論になるでしょう。なお、「LAS 燃やす」でグーグル検索してみたところ、この検索条件でのヒットはありませんでした。そんなことを考えた人がいなかったことが解ります。なお、SやNやClを含む合成洗剤が燃やすと強酸になるということは、燃やして完全に酸化されれば、酸素と結合する最終形態(酸化物)になるだろうと思われるからです。そうなると、真に環境問題を考えるなら、(すでに家庭にあるなら)合成洗剤を使わず、また焼却処分にも出さず、いわゆる「お宝」として、大事に保存して持っていることがもっとも妥当な行為だと思われます。製造しないのがベストであることは言わずと知れたことですね。
















タグ   環境問題 化学物質 合成洗剤 酸性雨 技術