Sciencemadness Discussion Board

Clorox Bleach and Hair: What reaction takes place?

Terminus_Est - 15-8-2014 at 04:22

And before you make fun of me, NO, I am not entertaining the stupid notion of bleaching my hair with Clorox. *chuckle*

Rather, to see what happens, I recently cleaned out my electric razor and dumped all its contents into a small amount of bleach. Over a period of time, all the hair dissolved and a milky white residue was left. But I've been curious to know what happens chemically to the proteins in hair upon reacting with the bleach. Anyone care to explain?


unionised - 15-8-2014 at 09:33

There are probably lots of reactions.
This one probably features in the brew.
http://en.wikipedia.org/wiki/Hofmann_rearrangement

xfusion44 - 15-8-2014 at 22:44

Don't know about reactions that happen, but I read that hair are made of about 91% protein, if this helps :)

confused - 16-8-2014 at 00:42


bleaching of hair using hydrogen peroxide and othe oxidising agents

http://journal.scconline.org/pdf/cc1970/cc021n13/p00875-p009...

PHILOU Zrealone - 20-8-2014 at 11:30

Clorox bleach is NaOCl, NaOH and NaCl mix.
It is rather basic so:
1°)It will hydrolyse the proteins from hairs into separate amino acids.
2°)Disulfidic bridges will be oxydised to sulfonic acids or other oxidised sulfide varieties
3°)Free amino acids will eventually be chlorinated
R-CH(CO2H)-NH2 --> R-CH(CO2H)-NCl2
If you heat it a little eventually it will decarboxylate and form nitriles that will further hydrolyse to carboxylic acids derivatives...
R-CH(CO2H)-NCl2 --> R-CH2-NCl2 + CO2 --> R-C#N + CO2 + 2HCl
R-C#N -H2O-> R-CO-NH2 -H2O-> R-CO2NH4