Sunday, April 21, 2013

Cleaning clogged drains, Chemo-explained:


If you don’t have Drano, then  lye is your best friend:

Warning:
Lye(and Drano) is extremely harmful and can cause chemical burns of first degree, you ought to avoid direct contact with your body, mixing chemicals with water might get the water to boil putting you and your EYEs in a risk of injuries even from a distance. Don’t try any of the described below unless you're not a minor and can understand the above precautions.

While fat and grease are most dangerous when they affect the cardiac system, still they are  pretty annoying when you find out the your drains have clogs, especially when there are some hair allowing the fat and grease to accumulate even more making one big clog that might spell doom on your drains.

The above statement is more than enough for people who know some Chemistry to realize that some lye would come at handy in this kind of situations. It's not rocket science simply the lye would eat the clogs away forming new things that can go away by simply pouring water .

So what is happening there??

the lye would react with the fatty things through a process called hydrolysis(braking some bonds by reacting with water)  yielding soap,, (yes soap, in fact the procedure of manufacturing soaps through hydrolysis of fatty things is still in use tell this day in some countries around the world). Soaps resulting from processing fats with sodium hydroxide (Lye) are soluble in water. And for the hair to be removed another hydrolysis procedure would take place tearing the molecules of a single hair into way much smaller ,molecules that can be drained by water.     

That being said why do we even want to buy Drano any way??

Crystal Drano (and of course other commercial products) has something more than just lye, it has Aluminum shards and sodium nitrate (According to the National Institutes of Health's Household Products Database).
When aluminum shards react with lye a big amount of heat is exerted leading to a faster more efficient hydrolysis of the clogs, even though that mixing lye with water would raise the temperature of the solution but the reaction with aluminum would make the water boil. And we have the nitrate ion coming from sodium nitrate which would function as an oxidizing agent simply cracking the molecules that won't be removed by lye into smaller ones.

Tell next time keep it Chemo-Clean.

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