关于下水管油脂,常用通管道商品好像都用烧碱

s
slow_quick
楼主 (文学城)

各类碱性化学物都能溶解油脂。

常用最弱的是碳酸氢钠(小苏打,baking soda, Sodium bicarbonate)

中等的是酸氢钠(纯碱、石碱,soda ash, sodium carbonate)--- 建议戴防护手套。

最强的是氢氧化钠(烧碱,lye, sodium hydroxide)  --- 绝对要戴防护手套!

烧碱的腐蚀性非常强,要非常小心!

Home Depot 能买到“drano”里面有效成分就是烧碱。

https://www.homedepot.com/p/Drano-Commercial-Line-17-6-oz-Kitchen-Granules-Clog-Remover-699031/303113302

https://www.whatsinsidescjohnson.com/us/en/brands/drano/drano-liquid-clog-remover

DIY 做“有机”肥皂就是用烧碱放进食用油,产生皂化反应。

https://www.nycoproducts.com/resources/blog/cleaners-degreasers-blurred-lines/#:~:text=Grease%20is%20an%20organic%20soil,proteins%20typically%20found%20in%20kitchens.

油脂在酸性物质中会不会反应我不知道。大家可以做个实验:弄一小块黄油(butter)或一小勺椰子油放在容器里,分别加小苏打、白醋,看哪个更能化解。

我中学、大学学的化学基本上都忘干净了。投坛能人成分都比较高,希望有人能澄清到底用酸还是碱化解管道油脂

 

b
borisg
我昨天照片里那样的DRANO不管用。
徒劳
对铁管和橡胶接口有害。另外我换下的管子里是这样的。。。

1寸半的管子只剩下半寸了

h
hhtt
我的经验是DRANO没有什么大用处,如果腐蚀性太强,烧坏管道,有法律问题;所以只能做的不痛不痒。没用!
s
slow_quick
Drano is like Statin (Lipitor), Snake is like Stent:) ....

当然还有更大的:

https://www.youtube.com/watch?v=iH7IwiHFVMs

 

h
hhtt
快慢兄,你这比喻,形象!我觉得如果经常倒些梳打或醋,再倒一大盆滚烫的热水,波大那出租房情况就不会有。
s
slow_quick
慎用烧碱类商品,经常用滚烫的热水加小苏打或纯碱灌下去大概能保持通畅

我的疑惑是醋是否有用

Drano 产品介绍说碱性化油脂,酸性去soap scum:

Sodium hydroxide is a builder that can also be found in detergents and degreasers. We use it to make a product formula clean better by affecting the molecules in the formula so they work together better. Sodium hydroxide can also be a pH adjuster that alters the pH of a product to improve stability. Every formula has an optimum pH to make it work best. For example, a formula that’s more acidic works better for soap scum removal. Its opposite, a formula that’s more alkaline, might be more effective at removing grease or greasy soils. We use pH adjusters to make sure we achieve the best pH for a particular job. Also, the pH of a formula can affect how long it lasts within a container – for example limiting its tendency to corrode a can, container or dispenser. In high concentrations (such as in drain cleaners), sodium hydroxide can also be used as a caustic that helps dissolve organic matter like drain clogs.

为避免管道腐蚀,家里还是用比较弱碱性的化学品,比如小苏打或纯碱

霞女
这管子是什么质地的?
霞女
家用,我都是放凉热汤,滤去油脂后,才倒掉。
徒劳
galvanized steel pipe 镀锌铁管
霞女
现在的房子是不是都用PVC了?
常谈
我们的城市回收organic food,包括油脂

现在常把油脂冷冻起来,到收垃圾那天装入compostable bag。